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