171 lines
5.1 KiB
C
171 lines
5.1 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018, hathach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* This file is part of the TinyUSB stack.
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*/
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#include "../board.h"
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#include "fsl_device_registers.h"
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#include "fsl_gpio.h"
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#include "fsl_iomuxc.h"
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#include "fsl_clock.h"
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#include "fsl_lpuart.h"
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#include "clock_config.h"
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#define LED_PINMUX IOMUXC_GPIO_SD_B1_01_GPIO3_IO21
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#define LED_PORT GPIO3
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#define LED_PIN 21
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#define LED_STATE_ON 0
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// SW8 button
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#define BUTTON_PINMUX IOMUXC_GPIO_EMC_09_GPIO2_IO09
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#define BUTTON_PORT GPIO2
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#define BUTTON_PIN 9
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#define BUTTON_STATE_ACTIVE 0
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// UART
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#define UART_PORT LPUART1
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#define UART_RX_PINMUX IOMUXC_GPIO_AD_B0_07_LPUART1_RX
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#define UART_TX_PINMUX IOMUXC_GPIO_AD_B0_06_LPUART1_TX
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const uint8_t dcd_data[] = { 0x00 };
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void board_init(void)
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{
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// Init clock
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BOARD_BootClockRUN();
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SystemCoreClockUpdate();
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// Enable IOCON clock
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CLOCK_EnableClock(kCLOCK_Iomuxc);
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#if CFG_TUSB_OS == OPT_OS_NONE
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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#elif CFG_TUSB_OS == OPT_OS_FREERTOS
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// If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
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// NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
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#endif
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// LED
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IOMUXC_SetPinMux( LED_PINMUX, 0U);
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IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
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gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
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GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
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board_led_write(true);
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// Button
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IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
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IOMUXC_SetPinConfig(BUTTON_PINMUX, 0x01B0A0U);
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gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
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GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
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// UART
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IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
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IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
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IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
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IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
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lpuart_config_t uart_config;
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LPUART_GetDefaultConfig(&uart_config);
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uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
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uart_config.enableTx = true;
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uart_config.enableRx = true;
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LPUART_Init(UART_PORT, &uart_config, (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U));
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//------------- USB0 -------------//
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// Clock
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CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
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CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
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USBPHY_Type* usb_phy = USBPHY;
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// Enable PHY support for Low speed device + LS via FS Hub
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usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
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// Enable all power for normal operation
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usb_phy->PWD = 0;
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// TX Timing
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uint32_t phytx = usb_phy->TX;
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phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
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phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
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usb_phy->TX = phytx;
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}
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//--------------------------------------------------------------------+
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// USB Interrupt Handler
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//--------------------------------------------------------------------+
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void USB_OTG1_IRQHandler(void)
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{
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
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tuh_isr(0);
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#endif
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#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
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tud_isr(0);
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#endif
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}
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//--------------------------------------------------------------------+
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// Board porting API
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//--------------------------------------------------------------------+
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void board_led_write(bool state)
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{
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GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
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}
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uint32_t board_button_read(void)
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{
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// active low
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return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
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}
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int board_uart_read(uint8_t* buf, int len)
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{
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LPUART_ReadBlocking(UART_PORT, buf, len);
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return len;
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}
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int board_uart_write(void const * buf, int len)
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{
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LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
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return len;
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}
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#if CFG_TUSB_OS == OPT_OS_NONE
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volatile uint32_t system_ticks = 0;
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void SysTick_Handler(void)
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{
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system_ticks++;
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}
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uint32_t board_millis(void)
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{
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return system_ticks;
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}
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#endif
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