81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
#include "uart_download.h"
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#include "stdio.h"
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static UART_HandleTypeDef uart_download;
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static void UART_DOWNLOAD_Msp_Init(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;
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/*##-1- Enable peripherals and GPIO Clocks #################################*/
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/* Enable GPIO TX/RX clock */
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USART_DOWNLOAD_TX_GPIO_CLK_ENABLE();
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USART_DOWNLOAD_RX_GPIO_CLK_ENABLE();
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/* Select HSI as source of USARTx clocks */
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RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART_DOWNLOAD;
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RCC_PeriphClkInit.Usart16ClockSelection = RCC_USART_DOWNLOAD_CLKSOURCE_HSI;
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HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
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/* Enable USARTx clock */
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USART_DOWNLOAD_CLK_ENABLE();
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/*##-2- Configure peripheral GPIO ##########################################*/
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/* UART TX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART_DOWNLOAD_TX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = USART_DOWNLOAD_TX_AF;
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HAL_GPIO_Init(USART_DOWNLOAD_TX_GPIO_PORT, &GPIO_InitStruct);
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/* UART RX GPIO pin configuration */
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GPIO_InitStruct.Pin = USART_DOWNLOAD_RX_PIN;
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GPIO_InitStruct.Alternate = USART_DOWNLOAD_RX_AF;
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HAL_GPIO_Init(USART_DOWNLOAD_RX_GPIO_PORT, &GPIO_InitStruct);
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/* NVIC for USART */
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HAL_NVIC_SetPriority(USART_DOWNLOAD_IRQn, 0, 1);
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HAL_NVIC_EnableIRQ(USART_DOWNLOAD_IRQn);
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}
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void uart_download_init(void)
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{
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uart_download.Instance = USART_DOWNLOAD;
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uart_download.Init.BaudRate = UART_DOWNLOAD_BAUDRATE;
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uart_download.Init.WordLength = UART_WORDLENGTH_8B;
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uart_download.Init.StopBits = UART_STOPBITS_1;
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uart_download.Init.Parity = UART_PARITY_NONE;
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uart_download.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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uart_download.Init.Mode = UART_MODE_TX_RX;
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uart_download.Init.ClockPrescaler = UART_PRESCALER_DIV1;
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uart_download.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
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uart_download.Init.OverSampling = UART_OVERSAMPLING_16;
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UART_DOWNLOAD_Msp_Init();
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if(HAL_UART_Init(&uart_download) != HAL_OK) {
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printf("%s, %s, %d: HAL_UART_Init failed.\r\n", __FILE__, __FUNCTION__, __LINE__);
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return;
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}
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/* Set the RXFIFO threshold */
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HAL_UARTEx_SetRxFifoThreshold(&uart_download, UART_RXFIFO_THRESHOLD_1_2);
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/* Enable the FIFO mode */
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HAL_UARTEx_EnableFifoMode(&uart_download);
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}
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void uart_download_send(void)
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{
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if (__HAL_UART_GET_FLAG(&uart_download, UART_FLAG_TXFNF)) {
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uart_download.Instance->TDR = 'A';
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}
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while (__HAL_UART_GET_FLAG(&uart_download, UART_FLAG_RXFNE)) {
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printf("Recv: %02lX\r\n", uart_download.Instance->RDR);
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}
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}
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