From 0d17749698890564e6a664987836b805c84adb90 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=B9=B3?= <88314322+PING020903@users.noreply.github.com> Date: Tue, 28 Apr 2026 18:41:30 +0800 Subject: [PATCH] Refactor USART driver for debug UART configuration MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 将DEBUG串口输出设置为宏定义控制，通过使用宏参数快速配置想要用以DEBUG的串口设备号 --- .../RT-Thread/rt-thread/bsp/usart/drv_usart.c | 169 ++++++++++++------ 1 file changed, 119 insertions(+), 50 deletions(-) diff --git a/EVT/EXAM/RT-Thread/rt-thread/bsp/usart/drv_usart.c b/EVT/EXAM/RT-Thread/rt-thread/bsp/usart/drv_usart.c index f37c9cd..2c380d0 100644 --- a/EVT/EXAM/RT-Thread/rt-thread/bsp/usart/drv_usart.c +++ b/EVT/EXAM/RT-Thread/rt-thread/bsp/usart/drv_usart.c @@ -1,4 +1,4 @@ - /********************************** (C) COPYRIGHT ******************************* +/********************************** (C) COPYRIGHT ******************************* * File Name : drv_usart.c * Author : WCH * Version : V1.0 @@ -6,7 +6,7 @@ * Description ********************************************************************************* * Copyright (c) 2024 Nanjing Qinheng Microelectronics Co., Ltd. - * Attention: This software (modified or not) and binary are used for + * Attention: This software (modified or not) and binary are used for * microcontroller manufactured by Nanjing Qinheng Microelectronics. *******************************************************************************/ #include "drv_usart.h" @@ -14,89 +14,158 @@ #include "rtdevice.h" #include -#define RT_UART_RINGBUF_SIZE 128 +#define DEBUG_UART_REMAP 1 +#define DEBUG_UART_NUM 1 +#define DEBUG_UART_BAUDRATE 921600 + +#define _UARTx_IRQn(x) UART##x##_IRQn +#define UARTx_IRQn(x) _UARTx_IRQn (x) + +#define _UARTx_IRQHandler(x) UART##x##_IRQHandler +#define UARTx_IRQHandler(x) _UARTx_IRQHandler (x) + +#define _UARTx_INTCfg(x) UART##x##_INTCfg +#define UARTx_INTCfg(x) _UARTx_INTCfg (x) + +#define _UARTx_BaudRateCfg(x) UART##x##_BaudRateCfg +#define UARTx_BaudRateCfg(x) _UARTx_BaudRateCfg (x) + +#define _R8_UARTx_TFC(x) R8_UART##x##_TFC +#define R8_UARTx_TFC(x) _R8_UARTx_TFC (x) + +#define _R8_UARTx_THR(x) R8_UART##x##_THR +#define R8_UARTx_THR(x) _R8_UARTx_THR (x) + +#define _R8_UARTx_RFC(x) R8_UART##x##_RFC +#define R8_UARTx_RFC(x) _R8_UARTx_RFC (x) + +#define _R8_UARTx_RBR(x) R8_UART##x##_RBR +#define R8_UARTx_RBR(x) _R8_UARTx_RBR (x) + +#define _UARTx_GetITFlag(x) UART##x##_GetITFlag() +#define UARTx_GetITFlag(x) _UARTx_GetITFlag (x) + +#define _UARTx_GetLinSTA(x) UART##x##_GetLinSTA() +#define UARTx_GetLinSTA(x) _UARTx_GetLinSTA (x) + +#define _UARTx_ByteTrigCfg(x) UART##x##_ByteTrigCfg +#define UARTx_ByteTrigCfg(x) _UARTx_ByteTrigCfg (x) + +#define RT_UART_RINGBUF_SIZE 128 static struct rt_ringbuffer rt_uart_ringbuf; -ALIGN(RT_ALIGN_SIZE) uint8_t rt_uart_buffer[RT_UART_RINGBUF_SIZE]; +ALIGN (RT_ALIGN_SIZE) +uint8_t rt_uart_buffer[RT_UART_RINGBUF_SIZE]; + +int usart_init (void) { + rt_ringbuffer_init (&rt_uart_ringbuf, rt_uart_buffer, RT_UART_RINGBUF_SIZE); -int usart_init(void) -{ - rt_ringbuffer_init(&rt_uart_ringbuf, rt_uart_buffer, RT_UART_RINGBUF_SIZE); + /* 配置串口0：先配置IO口模式，再配置串口 */ +#if (DEBUG_UART_NUM == 0) + GPIOA_SetBits (GPIO_Pin_14); + GPIOPinRemap (ENABLE, RB_PIN_UART0); + GPIOA_ModeCfg (GPIO_Pin_15, GPIO_ModeIN_PU); + GPIOA_ModeCfg (GPIO_Pin_14, GPIO_ModeOut_PP_5mA); +#elif (DEBUG_UART_NUM == 1) +#if DEBUG_UART_REMAP + GPIOB_SetBits (GPIO_Pin_13); + GPIOPinRemap (ENABLE, RB_PIN_UART1); + GPIOB_ModeCfg (GPIO_Pin_12, GPIO_ModeIN_PU); // RXD-配置上拉输入 + GPIOB_ModeCfg (GPIO_Pin_13, GPIO_ModeOut_PP_5mA); // TXD-配置推挽输出，注意先让IO口输出高电平 +#else + GPIOA_SetBits (GPIO_Pin_9); + GPIOA_ModeCfg (GPIO_Pin_8, GPIO_ModeIN_PU); + GPIOA_ModeCfg (GPIO_Pin_9, GPIO_ModeOut_PP_5mA); +#endif +#elif (DEBUG_UART_NUM == 2) +#if DEBUG_UART_REMAP + GPIOB_SetBits (GPIO_Pin_23); + GPIOPinRemap (ENABLE, RB_PIN_UART2); + GPIOB_ModeCfg (GPIO_Pin_22, GPIO_ModeIN_PU); // RXD-配置上拉输入 + GPIOB_ModeCfg (GPIO_Pin_23, GPIO_ModeOut_PP_5mA); // TXD-配置推挽输出，注意先让IO口输出高电平 +#else + GPIOA_SetBits (GPIO_Pin_7); + GPIOA_ModeCfg (GPIO_Pin_6, GPIO_ModeIN_PU); + GPIOA_ModeCfg (GPIO_Pin_7, GPIO_ModeOut_PP_5mA); +#endif +#elif (DEBUG_UART_NUM == 3) +#if DEBUG_UART_REMAP + GPIOB_SetBits (GPIO_Pin_21); + GPIOPinRemap (ENABLE, RB_PIN_UART3); + GPIOB_ModeCfg (GPIO_Pin_20, GPIO_ModeIN_PU); // RXD-配置上拉输入 + GPIOB_ModeCfg (GPIO_Pin_21, GPIO_ModeOut_PP_5mA); // TXD-配置推挽输出，注意先让IO口输出高电平 +#else + GPIOA_SetBits (GPIO_Pin_5); + GPIOA_ModeCfg (GPIO_Pin_4, GPIO_ModeIN_PU); + GPIOA_ModeCfg (GPIO_Pin_5, GPIO_ModeOut_PP_5mA); +#endif +#endif - /* ô0IOģʽô */ - GPIOA_SetBits(GPIO_Pin_14); - GPIOPinRemap(ENABLE, RB_PIN_UART0); - GPIOA_ModeCfg(GPIO_Pin_15, GPIO_ModeIN_PU); - GPIOA_ModeCfg(GPIO_Pin_14, GPIO_ModeOut_PP_5mA); - UART0_BaudRateCfg(115200); +#if (DEBUG_UART_NUM == 0) + UART0_BaudRateCfg (115200); R8_UART0_FCR = (0 << 6) | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN; R8_UART0_LCR = RB_LCR_WORD_SZ; R8_UART0_IER = RB_IER_TXD_EN; R8_UART0_DIV = 1; - - UART0_INTCfg(ENABLE, RB_IER_RECV_RDY | RB_IER_LINE_STAT); - PFIC_EnableIRQ(UART0_IRQn); +#elif (DEBUG_UART_NUM == 1) + UART1_DefInit(); +#elif (DEBUG_UART_NUM == 2) + UART2_DefInit(); +#elif (DEBUG_UART_NUM == 3) + UART3_DefInit(); +#endif + UARTx_BaudRateCfg (DEBUG_UART_NUM) (DEBUG_UART_BAUDRATE); + UARTx_ByteTrigCfg (DEBUG_UART_NUM) (UART_1BYTE_TRIG); + UARTx_INTCfg (DEBUG_UART_NUM) (ENABLE, RB_IER_RECV_RDY | RB_IER_LINE_STAT); + PFIC_EnableIRQ (UARTx_IRQn (DEBUG_UART_NUM)); return 0; } -INIT_BOARD_EXPORT(usart_init);//add to board auto initial - +INIT_BOARD_EXPORT (usart_init); // add to board auto initial // output -void rt_hw_console_output(const char *str) -{ +void rt_hw_console_output (const char *str) { rt_size_t i = 0, size = 0; char a = '\r'; - size = rt_strlen(str); - for (i = 0; i < size; i++) - { - if (*(str + i) == '\n') - { - while(R8_UART0_TFC == UART_FIFO_SIZE); - R8_UART0_THR = a; //if end of '\n', then add '\r' + size = rt_strlen (str); + for (i = 0; i < size; i++) { + if (*(str + i) == '\n') { + while (R8_UARTx_TFC (DEBUG_UART_NUM) == UART_FIFO_SIZE); + R8_UARTx_THR (DEBUG_UART_NUM) = a; // if end of '\n', then add '\r' } - while(R8_UART0_TFC == UART_FIFO_SIZE); - R8_UART0_THR = *(str + i); + while (R8_UARTx_TFC (DEBUG_UART_NUM) == UART_FIFO_SIZE); + R8_UARTx_THR (DEBUG_UART_NUM) = *(str + i); } } - -//input -char rt_hw_console_getchar(void) -{ +// input +char rt_hw_console_getchar (void) { /* Note: the initial value of ch must < 0 */ rt_uint8_t ch; - if(rt_ringbuffer_getchar(&rt_uart_ringbuf, &ch) != 0) - { + if (rt_ringbuffer_getchar (&rt_uart_ringbuf, &ch) != 0) { return ch; - } - else - { - rt_thread_mdelay(10); + } else { + rt_thread_mdelay (10); return -1; } return ch; } __HIGH_CODE -void UART0_IRQHandler(void) -{ +void UARTx_IRQHandler (DEBUG_UART_NUM) (void) { uint8_t v; - switch (UART0_GetITFlag()) - { + switch (UARTx_GetITFlag (DEBUG_UART_NUM)) { case UART_II_LINE_STAT: - v = UART0_GetLinSTA(); + v = UARTx_GetLinSTA (DEBUG_UART_NUM); break; case UART_II_RECV_RDY: - case UART_II_RECV_TOUT: - { - while (R8_UART0_RFC) - { - v = R8_UART0_RBR; - rt_ringbuffer_putchar(&rt_uart_ringbuf, v); + case UART_II_RECV_TOUT: { + while (R8_UARTx_RFC (DEBUG_UART_NUM)) { + v = R8_UARTx_RBR (DEBUG_UART_NUM); + rt_ringbuffer_putchar (&rt_uart_ringbuf, v); } break; }