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@@ -37,6 +37,24 @@
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#define BUTTON_PIN GPIO_PIN_0
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#define BUTTON_STATE_ACTIVE 1
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+#define UARTx USART1
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+#define UART_GPIO_PORT GPIOA
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+#define UART_GPIO_AF GPIO_AF1_USART1
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+#define UART_TX_PIN GPIO_PIN_9
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+#define UART_RX_PIN GPIO_PIN_10
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+
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+
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+UART_HandleTypeDef UartHandle;
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+
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+// enable all LED, Button, Uart, USB clock
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+static void all_rcc_clk_enable(void)
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+{
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+ __HAL_RCC_GPIOA_CLK_ENABLE(); // USB D+, D-
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+ __HAL_RCC_GPIOC_CLK_ENABLE(); // LED
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+ //__HAL_RCC_GPIOA_CLK_ENABLE(); // Button
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+ //__HAL_RCC_GPIOA_CLK_ENABLE(); // Uart tx, rx
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+ __HAL_RCC_USART1_CLK_ENABLE(); // Uart module
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+}
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/**
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* @brief System Clock Configuration
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@@ -83,12 +101,11 @@ void board_init(void)
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#endif
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SystemClock_Config();
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-
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- // Notify runtime of frequency change.
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SystemCoreClockUpdate();
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+
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+ all_rcc_clk_enable();
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// LED
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- __HAL_RCC_GPIOC_CLK_ENABLE();
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.Pin = LED_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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@@ -97,16 +114,32 @@ void board_init(void)
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HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
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// Button
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- __HAL_RCC_GPIOA_CLK_ENABLE();
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GPIO_InitStruct.Pin = BUTTON_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_PULLDOWN;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
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+ // Uart
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+ GPIO_InitStruct.Pin = UART_TX_PIN | UART_RX_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_HIGH;
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+ GPIO_InitStruct.Alternate = UART_GPIO_AF;
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+ HAL_GPIO_Init(UART_GPIO_PORT, &GPIO_InitStruct);
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+
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+ UartHandle.Instance = UARTx;
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+ UartHandle.Init.BaudRate = CFG_BOARD_UART_BAUDRATE;
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+ UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
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+ UartHandle.Init.StopBits = UART_STOPBITS_1;
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+ UartHandle.Init.Parity = UART_PARITY_NONE;
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+ UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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+ UartHandle.Init.Mode = UART_MODE_TX_RX;
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+ UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
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+ HAL_UART_Init(&UartHandle);
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+
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// USB Pins
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// Configure USB DM and DP pins. This is optional, and maintained only for user guidance.
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- __HAL_RCC_GPIOA_CLK_ENABLE();
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GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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@@ -139,8 +172,8 @@ int board_uart_read(uint8_t* buf, int len)
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int board_uart_write(void const * buf, int len)
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{
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- (void) buf; (void) len;
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- return 0;
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+ HAL_UART_Transmit(&UartHandle, (uint8_t*) buf, len, 0xffff);
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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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@@ -170,7 +203,8 @@ void HardFault_Handler (void)
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* @retval None
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*/
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void assert_failed(char *file, uint32_t line)
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-{
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+{
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+ (void) file; (void) line;
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/* USER CODE BEGIN 6 */
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/* User can add his own implementation to report the file name and line number,
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tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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hathach