add CH32V20x USB OTG/FS driver

This commit is contained in:
Matthew Tran
2023-11-19 18:26:40 -08:00
committed by hathach
parent cf532d1479
commit db60fa1c63
28 changed files with 2215 additions and 5 deletions

View File

@@ -0,0 +1,17 @@
#ifndef BOARD_H_
#define BOARD_H_
#ifdef __cplusplus
extern "C" {
#endif
#define LED_PORT GPIOA
#define LED_PIN GPIO_Pin_15
#define LED_STATE_ON 0
#define LED_CLOCK_EN() RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE)
#ifdef __cplusplus
}
#endif
#endif

View File

@@ -0,0 +1,5 @@
CFLAGS += \
-DCH32V20x_D6
SRC_S += \
$(CH32V20X_SDK_SRC)/Startup/startup_ch32v20x_D6.S

View File

@@ -0,0 +1,36 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : ch32v20x_conf.h
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Description : Library configuration file.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#ifndef __CH32V20x_CONF_H
#define __CH32V20x_CONF_H
#include "ch32v20x_adc.h"
#include "ch32v20x_bkp.h"
#include "ch32v20x_can.h"
#include "ch32v20x_crc.h"
#include "ch32v20x_dbgmcu.h"
#include "ch32v20x_dma.h"
#include "ch32v20x_exti.h"
#include "ch32v20x_flash.h"
#include "ch32v20x_gpio.h"
#include "ch32v20x_i2c.h"
#include "ch32v20x_iwdg.h"
#include "ch32v20x_pwr.h"
#include "ch32v20x_rcc.h"
#include "ch32v20x_rtc.h"
#include "ch32v20x_spi.h"
#include "ch32v20x_tim.h"
#include "ch32v20x_usart.h"
#include "ch32v20x_wwdg.h"
#include "ch32v20x_it.h"
#include "ch32v20x_misc.h"
#endif /* __CH32V20x_CONF_H */

View File

@@ -0,0 +1,15 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : ch32v20x_it.h
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Description : This file contains the headers of the interrupt handlers.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#ifndef __CH32V20x_IT_H
#define __CH32V20x_IT_H
#endif /* __CH32V20x_IT_H */

View File

@@ -0,0 +1,572 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : core_riscv.h
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Description : RISC-V Core Peripheral Access Layer Header File for CH32V20x
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#ifndef __CORE_RISCV_H__
#define __CORE_RISCV_H__
#ifdef __cplusplus
extern "C" {
#endif
/* IO definitions */
#ifdef __cplusplus
#define __I volatile /* defines 'read only' permissions */
#else
#define __I volatile const /* defines 'read only' permissions */
#endif
#define __O volatile /* defines 'write only' permissions */
#define __IO volatile /* defines 'read / write' permissions */
/* Standard Peripheral Library old types (maintained for legacy purpose) */
typedef __I uint64_t vuc64; /* Read Only */
typedef __I uint32_t vuc32; /* Read Only */
typedef __I uint16_t vuc16; /* Read Only */
typedef __I uint8_t vuc8; /* Read Only */
typedef const uint64_t uc64; /* Read Only */
typedef const uint32_t uc32; /* Read Only */
typedef const uint16_t uc16; /* Read Only */
typedef const uint8_t uc8; /* Read Only */
typedef __I int64_t vsc64; /* Read Only */
typedef __I int32_t vsc32; /* Read Only */
typedef __I int16_t vsc16; /* Read Only */
typedef __I int8_t vsc8; /* Read Only */
typedef const int64_t sc64; /* Read Only */
typedef const int32_t sc32; /* Read Only */
typedef const int16_t sc16; /* Read Only */
typedef const int8_t sc8; /* Read Only */
typedef __IO uint64_t vu64;
typedef __IO uint32_t vu32;
typedef __IO uint16_t vu16;
typedef __IO uint8_t vu8;
typedef uint64_t u64;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
typedef __IO int64_t vs64;
typedef __IO int32_t vs32;
typedef __IO int16_t vs16;
typedef __IO int8_t vs8;
typedef int64_t s64;
typedef int32_t s32;
typedef int16_t s16;
typedef int8_t s8;
typedef enum {NoREADY = 0, READY = !NoREADY} ErrorStatus;
typedef enum {DISABLE = 0, ENABLE = !DISABLE} FunctionalState;
typedef enum {RESET = 0, SET = !RESET} FlagStatus, ITStatus;
#define RV_STATIC_INLINE static inline
/* memory mapped structure for Program Fast Interrupt Controller (PFIC) */
typedef struct{
__I uint32_t ISR[8];
__I uint32_t IPR[8];
__IO uint32_t ITHRESDR;
__IO uint32_t RESERVED;
__IO uint32_t CFGR;
__I uint32_t GISR;
__IO uint8_t VTFIDR[4];
uint8_t RESERVED0[12];
__IO uint32_t VTFADDR[4];
uint8_t RESERVED1[0x90];
__O uint32_t IENR[8];
uint8_t RESERVED2[0x60];
__O uint32_t IRER[8];
uint8_t RESERVED3[0x60];
__O uint32_t IPSR[8];
uint8_t RESERVED4[0x60];
__O uint32_t IPRR[8];
uint8_t RESERVED5[0x60];
__IO uint32_t IACTR[8];
uint8_t RESERVED6[0xE0];
__IO uint8_t IPRIOR[256];
uint8_t RESERVED7[0x810];
__IO uint32_t SCTLR;
}PFIC_Type;
/* memory mapped structure for SysTick */
typedef struct
{
__IO uint32_t CTLR;
__IO uint32_t SR;
__IO uint64_t CNT;
__IO uint64_t CMP;
}SysTick_Type;
#define PFIC ((PFIC_Type *) 0xE000E000 )
#define NVIC PFIC
#define NVIC_KEY1 ((uint32_t)0xFA050000)
#define NVIC_KEY2 ((uint32_t)0xBCAF0000)
#define NVIC_KEY3 ((uint32_t)0xBEEF0000)
#define SysTick ((SysTick_Type *) 0xE000F000)
/*********************************************************************
* @fn __enable_irq
*
* @brief Enable Global Interrupt
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __enable_irq(void)
{
__asm volatile ("csrw 0x800, %0" : : "r" (0x6088) );
}
/*********************************************************************
* @fn __disable_irq
*
* @brief Disable Global Interrupt
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __disable_irq(void)
{
__asm volatile ("csrw 0x800, %0" : : "r" (0x6000) );
}
/*********************************************************************
* @fn __NOP
*
* @brief nop
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __NOP(void)
{
__asm volatile ("nop");
}
/*********************************************************************
* @fn NVIC_EnableIRQ
*
* @brief Disable Interrupt
*
* @param IRQn - Interrupt Numbers
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_EnableIRQ(IRQn_Type IRQn)
{
NVIC->IENR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
}
/*********************************************************************
* @fn NVIC_DisableIRQ
*
* @brief Disable Interrupt
*
* @param IRQn - Interrupt Numbers
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_DisableIRQ(IRQn_Type IRQn)
{
NVIC->IRER[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
}
/*********************************************************************
* @fn NVIC_GetStatusIRQ
*
* @brief Get Interrupt Enable State
*
* @param IRQn - Interrupt Numbers
*
* @return 1 - Interrupt Pending Enable
* 0 - Interrupt Pending Disable
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t NVIC_GetStatusIRQ(IRQn_Type IRQn)
{
return((uint32_t) ((NVIC->ISR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
}
/*********************************************************************
* @fn NVIC_GetPendingIRQ
*
* @brief Get Interrupt Pending State
*
* @param IRQn - Interrupt Numbers
*
* @return 1 - Interrupt Pending Enable
* 0 - Interrupt Pending Disable
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t NVIC_GetPendingIRQ(IRQn_Type IRQn)
{
return((uint32_t) ((NVIC->IPR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
}
/*********************************************************************
* @fn NVIC_SetPendingIRQ
*
* @brief Set Interrupt Pending
*
* @param IRQn - Interrupt Numbers
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_SetPendingIRQ(IRQn_Type IRQn)
{
NVIC->IPSR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
}
/*********************************************************************
* @fn NVIC_ClearPendingIRQ
*
* @brief Clear Interrupt Pending
*
* @param IRQn - Interrupt Numbers
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_ClearPendingIRQ(IRQn_Type IRQn)
{
NVIC->IPRR[((uint32_t)(IRQn) >> 5)] = (1 << ((uint32_t)(IRQn) & 0x1F));
}
/*********************************************************************
* @fn NVIC_GetActive
*
* @brief Get Interrupt Active State
*
* @param IRQn - Interrupt Numbers
*
* @return 1 - Interrupt Active
* 0 - Interrupt No Active
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t NVIC_GetActive(IRQn_Type IRQn)
{
return((uint32_t)((NVIC->IACTR[(uint32_t)(IRQn) >> 5] & (1 << ((uint32_t)(IRQn) & 0x1F)))?1:0));
}
/*********************************************************************
* @fn NVIC_SetPriority
*
* @brief Set Interrupt Priority
*
* @param IRQn - Interrupt Numbers
* priority - bit7 - Pre-emption Priority
* bit[6:5] - Subpriority
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_SetPriority(IRQn_Type IRQn, uint8_t priority)
{
NVIC->IPRIOR[(uint32_t)(IRQn)] = priority;
}
/*********************************************************************
* @fn __WFI
*
* @brief Wait for Interrupt
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __WFI(void)
{
NVIC->SCTLR &= ~(1<<3); // wfi
asm volatile ("wfi");
}
/*********************************************************************
* @fn _SEV
*
* @brief Set Event
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void _SEV(void)
{
uint32_t t;
t = NVIC->SCTLR;
NVIC->SCTLR |= (1<<3)|(1<<5);
NVIC->SCTLR = (NVIC->SCTLR & ~(1<<5)) | ( t & (1<<5));
}
/*********************************************************************
* @fn _WFE
*
* @brief Wait for Events
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void _WFE(void)
{
NVIC->SCTLR |= (1<<3);
asm volatile ("wfi");
}
/*********************************************************************
* @fn __WFE
*
* @brief Wait for Events
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void __WFE(void)
{
_SEV();
_WFE();
_WFE();
}
/*********************************************************************
* @fn SetVTFIRQ
*
* @brief Set VTF Interrupt
*
* @param addr - VTF interrupt service function base address.
* IRQn - Interrupt Numbers
* num - VTF Interrupt Numbers
* NewState - DISABLE or ENABLE
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void SetVTFIRQ(uint32_t addr, IRQn_Type IRQn, uint8_t num, FunctionalState NewState){
if(num > 3) return ;
if (NewState != DISABLE)
{
NVIC->VTFIDR[num] = IRQn;
NVIC->VTFADDR[num] = ((addr&0xFFFFFFFE)|0x1);
}
else{
NVIC->VTFIDR[num] = IRQn;
NVIC->VTFADDR[num] = ((addr&0xFFFFFFFE)&(~0x1));
}
}
/*********************************************************************
* @fn NVIC_SystemReset
*
* @brief Initiate a system reset request
*
* @return none
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE void NVIC_SystemReset(void)
{
NVIC->CFGR = NVIC_KEY3|(1<<7);
}
/*********************************************************************
* @fn __AMOADD_W
*
* @brief Atomic Add with 32bit value
* Atomically ADD 32bit value with value in memory using amoadd.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be ADDed
*
* @return return memory value + add value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOADD_W(volatile int32_t *addr, int32_t value)
{
int32_t result;
__asm volatile ("amoadd.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOAND_W
*
* @brief Atomic And with 32bit value
* Atomically AND 32bit value with value in memory using amoand.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be ANDed
*
* @return return memory value & and value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOAND_W(volatile int32_t *addr, int32_t value)
{
int32_t result;
__asm volatile ("amoand.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOMAX_W
*
* @brief Atomic signed MAX with 32bit value
* Atomically signed max compare 32bit value with value in memory using amomax.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be compared
*
* @return the bigger value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOMAX_W(volatile int32_t *addr, int32_t value)
{
int32_t result;
__asm volatile ("amomax.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOMAXU_W
*
* @brief Atomic unsigned MAX with 32bit value
* Atomically unsigned max compare 32bit value with value in memory using amomaxu.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be compared
*
* @return return the bigger value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t __AMOMAXU_W(volatile uint32_t *addr, uint32_t value)
{
uint32_t result;
__asm volatile ("amomaxu.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOMIN_W
*
* @brief Atomic signed MIN with 32bit value
* Atomically signed min compare 32bit value with value in memory using amomin.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be compared
*
* @return the smaller value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOMIN_W(volatile int32_t *addr, int32_t value)
{
int32_t result;
__asm volatile ("amomin.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOMINU_W
*
* @brief Atomic unsigned MIN with 32bit value
* Atomically unsigned min compare 32bit value with value in memory using amominu.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be compared
*
* @return the smaller value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t __AMOMINU_W(volatile uint32_t *addr, uint32_t value)
{
uint32_t result;
__asm volatile ("amominu.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOOR_W
*
* @brief Atomic OR with 32bit value
* Atomically OR 32bit value with value in memory using amoor.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be ORed
*
* @return return memory value | and value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOOR_W(volatile int32_t *addr, int32_t value)
{
int32_t result;
__asm volatile ("amoor.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/*********************************************************************
* @fn __AMOSWAP_W
*
* @brief Atomically swap new 32bit value into memory using amoswap.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* newval - New value to be stored into the address
*
* @return return the original value in memory
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE uint32_t __AMOSWAP_W(volatile uint32_t *addr, uint32_t newval)
{
uint32_t result;
__asm volatile ("amoswap.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(newval) : "memory");
return result;
}
/*********************************************************************
* @fn __AMOXOR_W
*
* @brief Atomic XOR with 32bit value
* Atomically XOR 32bit value with value in memory using amoxor.d.
*
* @param addr - Address pointer to data, address need to be 4byte aligned
* value - value to be XORed
*
* @return return memory value ^ and value
*/
__attribute__( ( always_inline ) ) RV_STATIC_INLINE int32_t __AMOXOR_W(volatile int32_t *addr, int32_t value)
{
int32_t result;
__asm volatile ("amoxor.w %0, %2, %1" : \
"=r"(result), "+A"(*addr) : "r"(value) : "memory");
return *addr;
}
/* Core_Exported_Functions */
extern uint32_t __get_MSTATUS(void);
extern void __set_MSTATUS(uint32_t value);
extern uint32_t __get_MISA(void);
extern void __set_MISA(uint32_t value);
extern uint32_t __get_MTVEC(void);
extern void __set_MTVEC(uint32_t value);
extern uint32_t __get_MSCRATCH(void);
extern void __set_MSCRATCH(uint32_t value);
extern uint32_t __get_MEPC(void);
extern void __set_MEPC(uint32_t value);
extern uint32_t __get_MCAUSE(void);
extern void __set_MCAUSE(uint32_t value);
extern uint32_t __get_MTVAL(void);
extern void __set_MTVAL(uint32_t value);
extern uint32_t __get_MVENDORID(void);
extern uint32_t __get_MARCHID(void);
extern uint32_t __get_MIMPID(void);
extern uint32_t __get_MHARTID(void);
extern uint32_t __get_SP(void);
#ifdef __cplusplus
}
#endif
#endif

82
hw/bsp/ch32v20x/family.c Normal file
View File

@@ -0,0 +1,82 @@
#include <stdio.h>
#include "ch32v20x.h"
#include "bsp/board_api.h"
#include "board.h"
__attribute__((interrupt))
void USBHD_IRQHandler(void) {
tud_int_handler(0);
}
#if CFG_TUSB_OS == OPT_OS_NONE
volatile uint32_t system_ticks = 0;
__attribute__((interrupt))
void SysTick_Handler(void) {
SysTick->SR = 0;
system_ticks++;
}
uint32_t SysTick_Config(uint32_t ticks) {
NVIC_EnableIRQ(SysTicK_IRQn);
SysTick->CTLR = 0;
SysTick->SR = 0;
SysTick->CNT = 0;
SysTick->CMP = ticks-1;
SysTick->CTLR = 0xF;
return 0;
}
uint32_t board_millis(void) {
return system_ticks;
}
#endif
void board_init(void) {
__disable_irq();
#if CFG_TUSB_OS == OPT_OS_NONE
SysTick_Config(SystemCoreClock / 1000);
#endif
switch (SystemCoreClock) {
case 48000000: RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div1); break;
case 96000000: RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div2); break;
case 144000000: RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div3); break;
default: TU_ASSERT(0,); break;
}
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_OTG_FS, ENABLE);
LED_CLOCK_EN();
GPIO_InitTypeDef GPIO_InitStructure = {
.GPIO_Pin = LED_PIN,
.GPIO_Mode = GPIO_Mode_Out_OD,
.GPIO_Speed = GPIO_Speed_50MHz,
};
GPIO_Init(LED_PORT, &GPIO_InitStructure);
__enable_irq();
board_delay(2);
}
void board_led_write(bool state) {
GPIO_WriteBit(LED_PORT, LED_PIN, state);
}
uint32_t board_button_read(void) {
return false;
}
int board_uart_read(uint8_t *buf, int len) {
(void) buf;
(void) len;
return 0;
}
int board_uart_write(void const *buf, int len) {
(void) buf;
(void) len;
return len;
}

50
hw/bsp/ch32v20x/family.mk Normal file
View File

@@ -0,0 +1,50 @@
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack
CROSS_COMPILE ?= riscv-none-elf-
# Submodules
CH32V20X_SDK = hw/mcu/wch/ch32v20x
DEPS_SUBMODULES += $(CH32V20X_SDK)
# WCH-SDK paths
CH32V20X_SDK_SRC = $(CH32V20X_SDK)/EVT/EXAM/SRC
include $(TOP)/$(BOARD_PATH)/board.mk
CFLAGS += \
-march=rv32imac_zicsr \
-mabi=ilp32 \
-mcmodel=medany \
-ffunction-sections \
-fdata-sections \
-ffat-lto-objects \
-flto \
-nostdlib -nostartfiles \
-DCFG_TUSB_MCU=OPT_MCU_CH32V20X \
-DBOARD_TUD_MAX_SPEED=OPT_MODE_FULL_SPEED \
LDFLAGS_GCC += \
-Wl,--gc-sections \
-specs=nosys.specs \
-specs=nano.specs \
LD_FILE = $(CH32V20X_SDK_SRC)/Ld/Link.ld
SRC_C += \
src/portable/wch/dcd_ch32_usbfs.c \
$(CH32V20X_SDK_SRC)/Core/core_riscv.c \
$(CH32V20X_SDK_SRC)/Peripheral/src/ch32v20x_gpio.c \
$(CH32V20X_SDK_SRC)/Peripheral/src/ch32v20x_misc.c \
$(CH32V20X_SDK_SRC)/Peripheral/src/ch32v20x_rcc.c \
$(CH32V20X_SDK_SRC)/Peripheral/src/ch32v20x_usart.c \
INC += \
$(TOP)/$(BOARD_PATH) \
$(TOP)/$(CH32V20X_SDK_SRC)/Peripheral/inc \
FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/RISC-V
# wch-link is not supported yet in official openOCD yet. We need to either use
# 1. download openocd as part of mounriver studio http://www.mounriver.com/download or
# 2. compiled from modified source https://github.com/dragonlock2/miscboards/blob/main/wch/SDK/riscv-openocd.tar.xz
flash: $(BUILD)/$(PROJECT).elf
openocd -f $(TOP)/$(FAMILY_PATH)/wch-riscv.cfg -c init -c halt -c "flash write_image $<" -c reset -c exit

View File

@@ -0,0 +1,976 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : system_ch32v20x.c
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Description : CH32V20x Device Peripheral Access Layer System Source File.
* For HSE = 32Mhz (CH32V208x/CH32V203RBT6)
* For HSE = 8Mhz (other CH32V203x)
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "ch32v20x.h"
/*
* Uncomment the line corresponding to the desired System clock (SYSCLK) frequency (after
* reset the HSI is used as SYSCLK source).
* If none of the define below is enabled, the HSI is used as System clock source.
*/
//#define SYSCLK_FREQ_HSE HSE_VALUE
//#define SYSCLK_FREQ_48MHz_HSE 48000000
//#define SYSCLK_FREQ_56MHz_HSE 56000000
//#define SYSCLK_FREQ_72MHz_HSE 72000000
#define SYSCLK_FREQ_96MHz_HSE 96000000
//#define SYSCLK_FREQ_120MHz_HSE 120000000
//#define SYSCLK_FREQ_144MHz_HSE 144000000
//#define SYSCLK_FREQ_HSI HSI_VALUE
//#define SYSCLK_FREQ_48MHz_HSI 48000000
//#define SYSCLK_FREQ_56MHz_HSI 56000000
//#define SYSCLK_FREQ_72MHz_HSI 72000000
//#define SYSCLK_FREQ_96MHz_HSI 96000000
//#define SYSCLK_FREQ_120MHz_HSI 120000000
//#define SYSCLK_FREQ_144MHz_HSI 144000000
/* Clock Definitions */
#ifdef SYSCLK_FREQ_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_48MHz_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_56MHz_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_72MHz_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_96MHz_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_96MHz_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_120MHz_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_120MHz_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_144MHz_HSE
uint32_t SystemCoreClock = SYSCLK_FREQ_144MHz_HSE; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_48MHz_HSI
uint32_t SystemCoreClock = SYSCLK_FREQ_48MHz_HSI; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_56MHz_HSI
uint32_t SystemCoreClock = SYSCLK_FREQ_56MHz_HSI; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_72MHz_HSI
uint32_t SystemCoreClock = SYSCLK_FREQ_72MHz_HSI; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_96MHz_HSI
uint32_t SystemCoreClock = SYSCLK_FREQ_96MHz_HSI; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_120MHz_HSI
uint32_t SystemCoreClock = SYSCLK_FREQ_120MHz_HSI; /* System Clock Frequency (Core Clock) */
#elif defined SYSCLK_FREQ_144MHz_HSI
uint32_t SystemCoreClock = SYSCLK_FREQ_144MHz_HSI; /* System Clock Frequency (Core Clock) */
#else
uint32_t SystemCoreClock = HSI_VALUE; /* System Clock Frequency (Core Clock) */
#endif
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/* system_private_function_proto_types */
static void SetSysClock(void);
#ifdef SYSCLK_FREQ_HSE
static void SetSysClockToHSE( void );
#elif defined SYSCLK_FREQ_48MHz_HSE
static void SetSysClockTo48_HSE( void );
#elif defined SYSCLK_FREQ_56MHz_HSE
static void SetSysClockTo56_HSE( void );
#elif defined SYSCLK_FREQ_72MHz_HSE
static void SetSysClockTo72_HSE( void );
#elif defined SYSCLK_FREQ_96MHz_HSE
static void SetSysClockTo96_HSE( void );
#elif defined SYSCLK_FREQ_120MHz_HSE
static void SetSysClockTo120_HSE( void );
#elif defined SYSCLK_FREQ_144MHz_HSE
static void SetSysClockTo144_HSE( void );
#elif defined SYSCLK_FREQ_48MHz_HSI
static void SetSysClockTo48_HSI( void );
#elif defined SYSCLK_FREQ_56MHz_HSI
static void SetSysClockTo56_HSI( void );
#elif defined SYSCLK_FREQ_72MHz_HSI
static void SetSysClockTo72_HSI( void );
#elif defined SYSCLK_FREQ_96MHz_HSI
static void SetSysClockTo96_HSI( void );
#elif defined SYSCLK_FREQ_120MHz_HSI
static void SetSysClockTo120_HSI( void );
#elif defined SYSCLK_FREQ_144MHz_HSI
static void SetSysClockTo144_HSI( void );
#endif
/*********************************************************************
* @fn SystemInit
*
* @brief Setup the microcontroller system Initialize the Embedded Flash Interface,
* the PLL and update the SystemCoreClock variable.
*
* @return none
*/
void SystemInit (void)
{
RCC->CTLR |= (uint32_t)0x00000001;
RCC->CFGR0 &= (uint32_t)0xF8FF0000;
RCC->CTLR &= (uint32_t)0xFEF6FFFF;
RCC->CTLR &= (uint32_t)0xFFFBFFFF;
RCC->CFGR0 &= (uint32_t)0xFF80FFFF;
RCC->INTR = 0x009F0000;
SetSysClock();
}
/*********************************************************************
* @fn SystemCoreClockUpdate
*
* @brief Update SystemCoreClock variable according to Clock Register Values.
*
* @return none
*/
void SystemCoreClockUpdate (void)
{
uint32_t tmp = 0, pllmull = 0, pllsource = 0, Pll_6_5 = 0;
tmp = RCC->CFGR0 & RCC_SWS;
switch (tmp)
{
case 0x00:
SystemCoreClock = HSI_VALUE;
break;
case 0x04:
SystemCoreClock = HSE_VALUE;
break;
case 0x08:
pllmull = RCC->CFGR0 & RCC_PLLMULL;
pllsource = RCC->CFGR0 & RCC_PLLSRC;
pllmull = ( pllmull >> 18) + 2;
if(pllmull == 17) pllmull = 18;
if (pllsource == 0x00)
{
if(EXTEN->EXTEN_CTR & EXTEN_PLL_HSI_PRE){
SystemCoreClock = HSI_VALUE * pllmull;
}
else{
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
}
}
else
{
#if defined (CH32V20x_D8W)
if((RCC->CFGR0 & (3<<22)) == (3<<22))
{
SystemCoreClock = ((HSE_VALUE>>1)) * pllmull;
}
else
#endif
if ((RCC->CFGR0 & RCC_PLLXTPRE) != (uint32_t)RESET)
{
#if defined (CH32V20x_D8) || defined (CH32V20x_D8W)
SystemCoreClock = ((HSE_VALUE>>2) >> 1) * pllmull;
#else
SystemCoreClock = (HSE_VALUE >> 1) * pllmull;
#endif
}
else
{
#if defined (CH32V20x_D8) || defined (CH32V20x_D8W)
SystemCoreClock = (HSE_VALUE>>2) * pllmull;
#else
SystemCoreClock = HSE_VALUE * pllmull;
#endif
}
}
if(Pll_6_5 == 1) SystemCoreClock = (SystemCoreClock / 2);
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
tmp = AHBPrescTable[((RCC->CFGR0 & RCC_HPRE) >> 4)];
SystemCoreClock >>= tmp;
}
/*********************************************************************
* @fn SetSysClock
*
* @brief Configures the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClock(void)
{
#ifdef SYSCLK_FREQ_HSE
SetSysClockToHSE();
#elif defined SYSCLK_FREQ_48MHz_HSE
SetSysClockTo48_HSE();
#elif defined SYSCLK_FREQ_56MHz_HSE
SetSysClockTo56_HSE();
#elif defined SYSCLK_FREQ_72MHz_HSE
SetSysClockTo72_HSE();
#elif defined SYSCLK_FREQ_96MHz_HSE
SetSysClockTo96_HSE();
#elif defined SYSCLK_FREQ_120MHz_HSE
SetSysClockTo120_HSE();
#elif defined SYSCLK_FREQ_144MHz_HSE
SetSysClockTo144_HSE();
#elif defined SYSCLK_FREQ_48MHz_HSI
SetSysClockTo48_HSI();
#elif defined SYSCLK_FREQ_56MHz_HSI
SetSysClockTo56_HSI();
#elif defined SYSCLK_FREQ_72MHz_HSI
SetSysClockTo72_HSI();
#elif defined SYSCLK_FREQ_96MHz_HSI
SetSysClockTo96_HSI();
#elif defined SYSCLK_FREQ_120MHz_HSI
SetSysClockTo120_HSI();
#elif defined SYSCLK_FREQ_144MHz_HSI
SetSysClockTo144_HSI();
#endif
/* If none of the define above is enabled, the HSI is used as System clock
* source (default after reset)
*/
}
#ifdef SYSCLK_FREQ_HSE
/*********************************************************************
* @fn SetSysClockToHSE
*
* @brief Sets HSE as System clock source and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockToHSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV1;
/* Select HSE as system clock source
* CH32V20x_D6 (HSE=8MHZ)
* CH32V20x_D8 (HSE=32MHZ)
* CH32V20x_D8W (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_HSE;
/* Wait till HSE is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x04)
{
}
}
else
{
/* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_48MHz_HSE
/*********************************************************************
* @fn SetSysClockTo48_HSE
*
* @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo48_HSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 6 = 48 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 6 = 48 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 6 = 48 MHz (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL6);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
else
{
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_56MHz_HSE
/*********************************************************************
* @fn SetSysClockTo56_HSE
*
* @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo56_HSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 7 = 56 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 7 = 56 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 7 = 56 MHz (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL7);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
else
{
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_72MHz_HSE
/*********************************************************************
* @fn SetSysClockTo72_HSE
*
* @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo72_HSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 9 = 72 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 9 = 72 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 9 = 72 MHz (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE |
RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL9);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
else
{
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_96MHz_HSE
/*********************************************************************
* @fn SetSysClockTo96_HSE
*
* @brief Sets System clock frequency to 96MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo96_HSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 12 = 96 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 12 = 96 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 12 = 96 MHz (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE |
RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL12);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
else
{
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_120MHz_HSE
/*********************************************************************
* @fn SetSysClockTo120_HSE
*
* @brief Sets System clock frequency to 120MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo120_HSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if(HSEStatus == (uint32_t)0x01)
{
#if defined (CH32V20x_D8W)
RCC->CFGR0 |= (uint32_t)(3<<22);
/* HCLK = SYSCLK/2 */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV2;
#else
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
#endif
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 15 = 120 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 15 = 120 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/2 * 15 = 240 MHz (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE |
RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL15);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
else
{
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_144MHz_HSE
/*********************************************************************
* @fn SetSysClockTo144_HSE
*
* @brief Sets System clock frequency to 144MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo144_HSE(void)
{
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC->CTLR |= ((uint32_t)RCC_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CTLR & RCC_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CTLR & RCC_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 18 = 144 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 18 = 144 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 18 = 144 MHz (HSE=32MHZ)
*/
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE |
RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSE | RCC_PLLXTPRE_HSE | RCC_PLLMULL18);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
else
{
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
#elif defined SYSCLK_FREQ_48MHz_HSI
/*********************************************************************
* @fn SetSysClockTo48_HSI
*
* @brief Sets System clock frequency to 48MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo48_HSI(void)
{
EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* PLL configuration: PLLCLK = HSI * 6 = 48 MHz */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL6);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
#elif defined SYSCLK_FREQ_56MHz_HSI
/*********************************************************************
* @fn SetSysClockTo56_HSI
*
* @brief Sets System clock frequency to 56MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo56_HSI(void)
{
EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* PLL configuration: PLLCLK = HSI * 7 = 48 MHz */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL7);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
#elif defined SYSCLK_FREQ_72MHz_HSI
/*********************************************************************
* @fn SetSysClockTo72_HSI
*
* @brief Sets System clock frequency to 72MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo72_HSI(void)
{
EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* PLL configuration: PLLCLK = HSI * 9 = 72 MHz */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL9);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
#elif defined SYSCLK_FREQ_96MHz_HSI
/*********************************************************************
* @fn SetSysClockTo96_HSI
*
* @brief Sets System clock frequency to 96MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo96_HSI(void)
{
EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* PLL configuration: PLLCLK = HSI * 12 = 96 MHz */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL12);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
#elif defined SYSCLK_FREQ_120MHz_HSI
/*********************************************************************
* @fn SetSysClockTo120_HSI
*
* @brief Sets System clock frequency to 120MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo120_HSI(void)
{
EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* PLL configuration: PLLCLK = HSI * 15 = 120 MHz */
RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_PLLSRC | RCC_PLLXTPRE |
RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL15);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t) ~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
#elif defined SYSCLK_FREQ_144MHz_HSI
/*********************************************************************
* @fn SetSysClockTo144_HSI
*
* @brief Sets System clock frequency to 144MHz and configure HCLK, PCLK2 and PCLK1 prescalers.
*
* @return none
*/
static void SetSysClockTo144_HSI(void)
{
EXTEN->EXTEN_CTR |= EXTEN_PLL_HSI_PRE;
/* HCLK = SYSCLK */
RCC->CFGR0 |= (uint32_t)RCC_HPRE_DIV1;
/* PCLK2 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE2_DIV1;
/* PCLK1 = HCLK */
RCC->CFGR0 |= (uint32_t)RCC_PPRE1_DIV2;
/* PLL configuration: PLLCLK = HSI * 18 = 144 MHz */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_PLLSRC | RCC_PLLXTPRE | RCC_PLLMULL));
RCC->CFGR0 |= (uint32_t)(RCC_PLLSRC_HSI_Div2 | RCC_PLLMULL18);
/* Enable PLL */
RCC->CTLR |= RCC_PLLON;
/* Wait till PLL is ready */
while((RCC->CTLR & RCC_PLLRDY) == 0)
{
}
/* Select PLL as system clock source */
RCC->CFGR0 &= (uint32_t)((uint32_t)~(RCC_SW));
RCC->CFGR0 |= (uint32_t)RCC_SW_PLL;
/* Wait till PLL is used as system clock source */
while ((RCC->CFGR0 & (uint32_t)RCC_SWS) != (uint32_t)0x08)
{
}
}
#endif

View File

@@ -0,0 +1,29 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : system_ch32v20x.h
* Author : WCH
* Version : V1.0.0
* Date : 2021/06/06
* Description : CH32V20x Device Peripheral Access Layer System Header File.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#ifndef __SYSTEM_ch32v20x_H
#define __SYSTEM_ch32v20x_H
#ifdef __cplusplus
extern "C" {
#endif
extern uint32_t SystemCoreClock; /* System Clock Frequency (Core Clock) */
/* System_Exported_Functions */
extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
#ifdef __cplusplus
}
#endif
#endif /*__CH32V20x_SYSTEM_H */

View File

@@ -0,0 +1,18 @@
#interface wlink
adapter driver wlinke
adapter speed 6000
transport select sdi
wlink_set_address 0x00000000
set _CHIPNAME wch_riscv
sdi newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x00001
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME.0 wch_riscv -chain-position $_TARGETNAME
$_TARGETNAME.0 configure -work-area-phys 0x20000000 -work-area-size 10000 -work-area-backup 1
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME wch_riscv 0x00000000 0 0 0 $_TARGETNAME.0
echo "Ready for Remote Connections"

View File

@@ -4,6 +4,9 @@
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack
CROSS_COMPILE ?= riscv-none-embed-
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack
#CROSS_COMPILE ?= riscv-none-elf-
# Submodules
CH32V307_SDK = hw/mcu/wch/ch32v307
@@ -13,6 +16,8 @@ CH32V307_SDK_SRC = $(CH32V307_SDK)/EVT/EXAM/SRC
include $(TOP)/$(BOARD_PATH)/board.mk
CPU_CORE ?= rv32imac-ilp32
# -march=rv32imac_zicsr
CFLAGS += \
-flto \
-msmall-data-limit=8 \

View File

@@ -1,6 +1,10 @@
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack
CROSS_COMPILE = riscv-none-embed-
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack
# CROSS_COMPILE = riscv-none-elf-
# -march=rv32i_zicsr
CPU_CORE ?= rv32i-ilp32
CFLAGS += \

View File

@@ -7,6 +7,9 @@
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack
CROSS_COMPILE ?= riscv-none-embed-
# Toolchain from https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack
# CROSS_COMPILE ?= riscv-none-elf-
# Submodules
NUCLEI_SDK = hw/mcu/gd/nuclei-sdk
@@ -19,6 +22,8 @@ STARTUP_ASM = $(GD32VF103_SDK_SOC)/Common/Source/GCC
include $(TOP)/$(BOARD_PATH)/board.mk
CPU_CORE ?= rv32imac-ilp32
# -march=rv32imac_zicsr
CFLAGS += \
-mcmodel=medlow \
-mstrict-align \