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added stub for dcd_stm32f3

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This commit is contained in:
hathach
2019-03-22 23:57:14 +07:00
parent ba1bea5d53
commit 43eb1a8b16
7 changed files with 455 additions and 54 deletions
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67
hw/bsp/stm32f303disc/board_stm32f303disc.c
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@@ -25,37 +25,33 @@
*/
#include "../board.h"
#include "stm32f3xx.h"
#include "tusb_option.h"
#include "stm32f3xx.h"
#include "stm32f3xx_hal_conf.h"
void board_init(void)
{
// Init the LED on PD14
RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
GPIOD->MODER |= GPIO_MODER_MODE14_0;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
// USB Clock init
// PLL input- 8 MHz (External oscillator clock; HSI clock tolerance isn't
// tight enough- 1%, need 0.25%)
// VCO input- 1 to 2 MHz (2 MHz, M = 4)
// VCO output- 100 to 432 MHz (144 MHz, N = 72)
// Main PLL out- <= 180 MHz (18 MHz, P = 3- divides by 8)
// USB PLL out- 48 MHz (Q = 3)
RCC->PLLCFGR = RCC_PLLCFGR_PLLSRC_HSE | (3 << RCC_PLLCFGR_PLLQ_Pos) | \
(3 << RCC_PLLCFGR_PLLP_Pos) | (72 << RCC_PLLCFGR_PLLN_Pos) | \
(4 << RCC_PLLCFGR_PLLM_Pos);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
HAL_RCC_OscConfig(&RCC_OscInitStruct);
// Wait for external clock to become ready
RCC->CR |= RCC_CR_HSEON;
while(!(RCC->CR & RCC_CR_HSERDY_Msk));
// Wait for PLL to become ready
RCC->CR |= RCC_CR_PLLON;
while(!(RCC->CR & RCC_CR_PLLRDY_Msk));
// Switch clocks!
RCC->CFGR |= RCC_CFGR_SW_1;
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
(void) HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
// Notify runtime of frequency change.
SystemCoreClockUpdate();
@@ -64,6 +60,19 @@ void board_init(void)
SysTick_Config(SystemCoreClock / 1000);
#endif
/* -1- Enable GPIOE Clock (to be able to program the configuration registers) */
__HAL_RCC_GPIOE_CLK_ENABLE();
/* -2- Configure PE.8 to PE.15 IOs in output push-pull mode to drive external LEDs */
static GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
#if 0
RCC->AHB2ENR |= RCC_AHB2ENR_OTGFSEN;
// USB Pin Init
@@ -79,19 +88,15 @@ void board_init(void)
// Pullup required on ID, despite the manual claiming there's an
// internal pullup already (page 1245, Rev 17)
GPIOA->PUPDR |= GPIO_PUPDR_PUPD10_0;
#endif
}
void board_led_control(bool state)
{
if (!state) {
GPIOD->BSRR = GPIO_BSRR_BR14;
} else {
GPIOD->BSRR = GPIO_BSRR_BS14;
}
HAL_GPIO_WritePin(GPIOE, GPIO_PIN_9, state);
}
/*------------------------------------------------------------------*/
/* TUSB HAL MILLISECOND
*------------------------------------------------------------------*/