157 lines
3.8 KiB
C
157 lines
3.8 KiB
C
#include "bsp_uart.h"
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#include "lwrb.h"
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#include "CH59x_uart.h"
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#include "shell_port.h"
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lwrb_t Uart1Rx;
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lwrb_t Uart1Tx;
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uint8_t uart1_tx_buf[UART1_TX_BUFFER_LENGTH] = {0};
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uint8_t uart1_rx_buf[UART1_RX_BUFFER_LENGTH] = {0};
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// 串口接收
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unsigned int BSP_Uart1_Receive_Data(void *buf, unsigned int len)
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{
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return lwrb_read(&Uart1Rx, buf, len);
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}
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// 串口发送数据
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unsigned int BSP_Uart1_Send_Data(const void *buf, unsigned int len)
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{
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unsigned int ret;
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ret = lwrb_write(&Uart1Tx, buf, len);
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// UART1_INTCfg(ENABLE, RB_IER_THR_EMPTY);
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return ret;
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}
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unsigned int BSP_Uart1_Send_String(const void *buf)
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{
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return BSP_Uart1_Send_Data(buf, strlen((const char *)buf));
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}
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/**
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* \brief Buffer event function
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*/
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static void Uart1_evt_fn(struct lwrb *buff, lwrb_evt_type_t evt, lwrb_sz_t bp)
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{
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switch (evt)
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{
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case LWRB_EVT_RESET:
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printf("[EVT] Buffer reset event!\r\n");
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break;
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case LWRB_EVT_READ:
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printf("[EVT] Buffer read event: %d byte(s)!\r\n", (int)bp);
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break;
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case LWRB_EVT_WRITE:
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printf("[EVT] Buffer write event: %d byte(s)!\r\n", (int)bp);
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break;
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default:
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break;
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}
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}
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void UART1_FifoInit(void)
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{
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lwrb_init(&Uart1Tx, uart1_tx_buf, sizeof(uart1_tx_buf));
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lwrb_init(&Uart1Rx, uart1_rx_buf, sizeof(uart1_rx_buf));
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// lwrb_set_evt_fn(&Uart1Rx, Uart1_evt_fn);
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}
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// DEBUG
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void BSP_UART1_Init(uint32_t baudrate)
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{
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// GPIOPinRemap(ENABLE, RB_PIN_UART1);
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/* 配置串口1：先配置IO口模式，再配置串口 */
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GPIOA_SetBits(bTXD1);
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// GPIOB_ModeCfg(bRXD1, GPIO_ModeIN_PU); // RXD-配置上拉输入
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GPIOA_ModeCfg(bTXD1, GPIO_ModeOut_PP_5mA); // TXD-配置推挽输出，注意先让IO口输出高电平
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// UART1_DefInit();
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{
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UART1_BaudRateCfg(baudrate);
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R8_UART1_FCR = (2 << 6) | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN; // FIFO打开，触发点4字节
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R8_UART1_LCR = RB_LCR_WORD_SZ;
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R8_UART1_IER = RB_IER_TXD_EN;
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R8_UART1_DIV = 1;
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}
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// UART1_ByteTrigCfg(UART_1BYTE_TRIG);
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// 中断方式接收数据
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// UART1_INTCfg(ENABLE, RB_IER_LINE_STAT | RB_IER_RECV_RDY);
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// UART1_INTCfg(ENABLE, RB_IER_LINE_STAT | RB_IER_RECV_RDY);
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// PFIC_EnableIRQ(UART1_IRQn);
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UART1_FifoInit();
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SHELL_Init();
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}
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// https://www.cnblogs.com/iot-fan/p/13439293.html
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// tx process
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// 本查询函数需要扔到主循环不断调用
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void BSP_UART1_TxLoop(void)
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{
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uint8_t data;
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while (R8_UART1_TFC < UART_FIFO_SIZE)
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{
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// 判断发送软件缓冲区,是否空,如果不空,就一个一个读出来,填到硬件fifo里
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if (lwrb_get_full(&Uart1Tx))
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{
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lwrb_read(&Uart1Tx, &data, 1);
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// 把软件缓冲区的数据填到uart的硬件发送fifo里
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UART1_SendByte(data);
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}
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else
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{
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break;
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}
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}
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}
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/*********************************************************************
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* @fn UART1_IRQHandler
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*
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* @brief UART1中断函数
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*
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* @return none
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*/
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__INTERRUPT
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__HIGH_CODE
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void UART1_IRQHandler(void)
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{
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switch (UART1_GetITFlag())
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{
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case UART_II_LINE_STAT: // 线路状态错误
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{
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UART1_GetLinSTA();
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break;
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}
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case UART_II_RECV_RDY:
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case UART_II_RECV_TOUT: // 接收超时
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// lwrb_write(&Uart1Rx, &R8_UART1_RBR, 1);
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while (R8_UART1_RFC)
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{
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shellHandler(&shell, R8_UART1_RBR);
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}
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break;
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case UART_II_THR_EMPTY: // 发送缓存区空，可继续发送
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// 串口中断发送会可能影响蓝牙
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break;
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case UART_II_MODEM_CHG: // 只支持串口0
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break;
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default:
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break;
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}
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}
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int reboot(void)
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{
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PFIC_SystemReset();
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}
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SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0) | SHELL_CMD_TYPE(SHELL_TYPE_CMD_FUNC),
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reboot, reboot, "reboot");
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