516 lines
15 KiB
C
516 lines
15 KiB
C
/** ##########################################################################
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** Filename : uart.c
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** Project :
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** Module :
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** Processor :
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** Version : 1.0
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** Compiler :
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** Date/Time :
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** Abstract :
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** Contents :
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** Note : uart底层
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**
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** (c) Copyright dmdz Co.,Ltd
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** --------------------------------------------------------------------------
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** R E V I S I O N H I S T O R Y
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** --------------------------------------------------------------------------
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** Date Ver Author Description
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** -20230602- --V1.0-- --mingyea--- --修改--
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** #########################################################################*/
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/*---------------------------------------------------------------------------
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* I N C L U D E F I L E S
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----------------------------------------------------------------------------*/
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#include "uart.h"
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#include "nvic.h"
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/*---------------------------------------------------------------------------
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* D E F I N E S / M A C R O S
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----------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------
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* T Y P E D E F I N I T I O N S
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----------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------
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* S T A T I C V A R I A B L E S
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----------------------------------------------------------------------------*/
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static uart_s g_uart =
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{
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0u
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};
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/*---------------------------------------------------------------------------
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* G L O B A L V A R I A B L E S
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----------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------
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* C O N S T A N T S
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----------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------
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* F U N C T I O N P R O T O T Y P E
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----------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------
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|Prototype : uart_init
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description : 初始化
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----------------------------------------------------------------------------*/
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void uart_init(void)
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{
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#ifdef USART_0_EN
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usart_0_gpio_init();
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FL_UART_Init(UART0, &g_UART0_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART0_IRQn);
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NVIC_DisableIRQ(UART0_IRQn);
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NVIC_SetPriority(UART0_IRQn, NVIC_PRIORITY_USART0); //中断优先级配置
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NVIC_EnableIRQ(UART0_IRQn);
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#endif
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#ifdef USART_1_EN
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usart_1_gpio_init();
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FL_UART_Init(UART1, &g_UART1_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART1_IRQn);
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NVIC_DisableIRQ(UART1_IRQn);
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NVIC_SetPriority(UART1_IRQn, NVIC_PRIORITY_USART1); //中断优先级配置
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NVIC_EnableIRQ(UART1_IRQn);
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#endif
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#ifdef USART_3_EN
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usart_3_gpio_init();
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FL_UART_Init(UART3, &g_UART3_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART3_IRQn);
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NVIC_DisableIRQ(UART3_IRQn);
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NVIC_SetPriority(UART3_IRQn, NVIC_PRIORITY_USART3); //中断优先级配置
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NVIC_EnableIRQ(UART3_IRQn);
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#endif
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#ifdef USART_4_EN
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usart_4_gpio_init();
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FL_UART_Init(UART4, &g_UART4_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART4_IRQn);
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NVIC_DisableIRQ(UART4_IRQn);
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NVIC_SetPriority(UART4_IRQn, NVIC_PRIORITY_USART4); //中断优先级配置
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NVIC_EnableIRQ(UART4_IRQn);
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#endif
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#ifdef USART_5_EN
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usart_5_gpio_init();
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FL_UART_Init(UART5, &g_UART5_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART5_IRQn);
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NVIC_DisableIRQ(UART5_IRQn);
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NVIC_SetPriority(UART5_IRQn, NVIC_PRIORITY_USART5); //中断优先级配置
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NVIC_EnableIRQ(UART5_IRQn);
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#endif
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_tx_start
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description : 初始化
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----------------------------------------------------------------------------*/
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u8 uart_tx_start(UART_Type *device, u8 *pdata, u8 length)
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{
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u8 l_result = UART_OP_RESULT_OK;
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u8 i ;
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UART_Type *l_usart_dev = (UART_Type *)device;
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//做了长度的判断
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if( (length == 0u) || (length>UART_TX_BUFF_LENGTH) )
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{
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l_result = UART_OP_RESULT_FAILED;
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}
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else
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{
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if(g_uart.state == UART_STATE_IDLE)
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{
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for(i = 0; i < length; i++)
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{
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g_uart.tx_data[i] = pdata[i] ;
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}
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#ifdef UART_INSERT_PROTOCAL
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g_uart.cmd = g_uart.tx_data[3];
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#endif
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g_uart.timecount=0u;
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g_uart.byte_count=0u;
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g_uart.tx_byte_total=length;
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g_uart.result=UART_RESULT_INIT;
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g_uart.state=UART_STATE_TX;
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#if 0
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l_usart_dev->RBR = g_uart.tx_data[g_uart.byte_count];
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UART_SetTXEInterrupt(l_usart_dev, ENABLE);
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#else
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FL_UART_ClearFlag_TXShiftBuffEmpty(device);
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FL_UART_EnableIT_TXShiftBuffEmpty(device);
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FL_UART_WriteTXBuff(device,g_uart.tx_data[g_uart.byte_count]);
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#endif
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}
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else
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{
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l_result = UART_OP_RESULT_BUSY;
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}
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}
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return l_result;
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_tx_isr_task
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description : 初始化
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----------------------------------------------------------------------------*/
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void uart_tx_isr_task(UART_Type *device)
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{
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UART_Type *l_usart_dev = (UART_Type *)device;
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u8 l_result = UART_OP_RESULT_OK;
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g_uart.timecount=0u;
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g_uart.byte_count++;
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if(g_uart.byte_count>=g_uart.tx_byte_total)
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{
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g_uart.byte_count=0u;
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g_uart.result=UART_RESULT_TX_OK;
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#ifdef UART_INSERT_PROTOCAL
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if( (g_uart.cmd & 0x20) || (g_uart.cmd==USART_CMD_READ_VERSION) )
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{
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#ifdef UART_INSERT_PROTOCAL
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if( (g_uart.cmd & 0x20) )
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{
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g_uart.rx_byte_total=(g_uart.cmd &0x1fu) + 4u;;
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}
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else
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{
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g_uart.rx_byte_total= USART_LEN_READ_VERSION + 1u;
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}
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#else
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//
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#endif
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g_uart.state=UART_STATE_RX;
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}
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else
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{
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g_uart.state=UART_STATE_IDLE;
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}
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#else
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g_uart.rx_byte_total=0u;
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g_uart.state=UART_STATE_IDLE;
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#endif
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#if 0
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UART_SetTXEInterrupt(l_usart_dev, DISABLE);
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#else
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FL_UART_DisableIT_TXShiftBuffEmpty(device);
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FL_UART_EnableIT_RXBuffFull(device);
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#endif
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#ifdef UART_DEBUG_EN
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g_uart.tx_count++;
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#endif
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}
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else
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{
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#if 0
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l_usart_dev->RBR = g_uart.tx_data[g_uart.byte_count];
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#else
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//FL_UART_ClearFlag_TXShiftBuffEmpty(device);
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//FL_UART_EnableIT_TXShiftBuffEmpty(device);
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FL_UART_WriteTXBuff(device,g_uart.tx_data[g_uart.byte_count]);
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#endif
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}
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_rx_isr_task
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description : 初始化
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----------------------------------------------------------------------------*/
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void uart_rx_isr_task(UART_Type *device,u8 data)
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{
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UART_Type *l_usart_dev = (UART_Type *)device;
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u8 l_len = UART_RX_BUFF_LENGTH;
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g_uart.timecount=0u;
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if(g_uart.state == UART_STATE_IDLE)
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{
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g_uart.byte_count=0u;
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g_uart.rx_data[g_uart.byte_count] = data;
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#ifdef UART_INSERT_PROTOCAL
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if( (g_uart.cmd & 0x20) )
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{
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g_uart.rx_byte_total=(g_uart.cmd &0x1fu) + 4u;;
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}
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else
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{
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g_uart.rx_byte_total= USART_LEN_READ_VERSION + 1u;
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}
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#else
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//
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#endif
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g_uart.byte_count++;
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g_uart.state = UART_STATE_RX;
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}
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else if(g_uart.state == UART_STATE_RX)
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{
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g_uart.rx_data[g_uart.byte_count] = data;
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g_uart.byte_count++;
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#ifdef UART_INSERT_PROTOCAL
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if(g_uart.byte_count>=g_uart.rx_byte_total)
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{
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//g_uart.byte_total=g_uart.byte_count;
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g_uart.byte_count=0u;
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g_uart.result=UART_RESULT_RX_OK;
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g_uart.state=UART_STATE_IDLE;
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#ifdef UART_DEBUG_EN
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g_uart.rx_count++;
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#endif
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}
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#endif
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if(g_uart.byte_count>=UART_RX_BUFF_LENGTH)
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{
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//g_uart.byte_total=g_uart.byte_count;
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g_uart.byte_count=0u;
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FL_UART_DisableIT_TXShiftBuffEmpty(device);
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FL_UART_DisableIT_RXBuffFull(device);
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g_uart.result=UART_RESULT_OVER_LEN;
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g_uart.state=UART_STATE_IDLE;
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}
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}
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else
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{
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//
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}
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_timeout_task
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description : 初始化
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----------------------------------------------------------------------------*/
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void uart_timeout_task(UART_Type *device)
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{
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UART_Type *l_usart_dev = (UART_Type *)device;
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u8 l_state;
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UART_SR_ALLOC();
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UART_CRITICAL_ENTER();
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l_state = g_uart.state;
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UART_CRITICAL_EXIT();
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if(l_state != UART_STATE_IDLE)
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{
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UART_CRITICAL_ENTER();
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g_uart.timecount++;
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if(g_uart.timecount>=UART_RECOVERY_TIMEOUT)
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{
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g_uart.timecount =0u;
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if(g_uart.state == UART_STATE_TX)
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{
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g_uart.result=UART_RESULT_TIMEOUT;
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#ifdef UART_DEBUG_EN
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g_uart.tx_count_timeout++;
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#endif
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}
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else
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{
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g_uart.rx_byte_total = g_uart.byte_count; //收完后的把总字长，保存
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#ifdef UART_INSERT_PROTOCAL
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g_uart.result=UART_RESULT_TIMEOUT;
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#else
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g_uart.result=UART_RESULT_RX_OK;
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#endif
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#ifdef UART_DEBUG_EN
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g_uart.rx_count_timeout++;
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#endif
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}
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g_uart.byte_count=0u;
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FL_UART_DisableIT_RXBuffFull(device);
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g_uart.state=UART_STATE_IDLE;
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}
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UART_CRITICAL_EXIT();
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}
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_task
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description :
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----------------------------------------------------------------------------*/
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void uart_task(void)
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{
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uart_timeout_task(UART5);
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_get_result
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description :
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----------------------------------------------------------------------------*/
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u8 uart_get_result(void)
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{
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return g_uart.result;
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}
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/*---------------------------------------------------------------------------
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|Prototype : uart_get_rx_data
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|Called by :
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|Preconditions :
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|Input parameters :
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|Output parameters :
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|Return value :
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|Description :
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----------------------------------------------------------------------------*/
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u8 uart_get_rx_data(u8 *pdata,u8 len)
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{
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u8 i;
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u8 l_result=0u;
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u8 l_len = len;
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if(l_len > UART_RX_BUFF_LENGTH) //
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{
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l_len = UART_RX_BUFF_LENGTH;
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}
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for(i = 0; i < l_len; i++)
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{
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pdata[i] = g_uart.rx_data[i];
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}
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return l_result;
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}
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/**
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* @brief UART初始化
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* @param UARTx: 串口号
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* rate: 波特率
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* @retval void
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*/
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void Uartx_Init(UART_Type *device, uint32_t baud_rate)
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{
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//FL_UART_InitTypeDef UART_InitStruct = {0};
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switch ((uint32_t)device)
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{
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case UART0_BASE:
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#ifdef USART_0_EN
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//usart_0_gpio_init(); //在GPIO表格中配置
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FL_UART_Init(UART0, &g_UART0_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART0_IRQn);
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NVIC_DisableIRQ(UART0_IRQn);
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NVIC_SetPriority(UART0_IRQn, NVIC_PRIORITY_USART0); //中断优先级配置
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NVIC_EnableIRQ(UART0_IRQn);
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#endif
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break;
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case UART1_BASE:
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#ifdef USART_1_EN
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//usart_1_gpio_init(); //在GPIO表格中配置
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FL_UART_Init(UART1, &g_UART1_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART1_IRQn);
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NVIC_DisableIRQ(UART1_IRQn);
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NVIC_SetPriority(UART1_IRQn, NVIC_PRIORITY_USART1); //中断优先级配置
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NVIC_EnableIRQ(UART1_IRQn);
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#endif
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break;
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case UART3_BASE:
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#ifdef USART_3_EN
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//usart_3_gpio_init(); //在GPIO表格中配置
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FL_UART_Init(UART3, &g_UART3_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART3_IRQn);
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NVIC_DisableIRQ(UART3_IRQn);
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NVIC_SetPriority(UART3_IRQn, NVIC_PRIORITY_USART3); //中断优先级配置
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NVIC_EnableIRQ(UART3_IRQn);
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#endif
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break;
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case UART4_BASE:
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#ifdef USART_4_EN
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//usart_4_gpio_init(); //在GPIO表格中配置
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FL_UART_Init(UART4, &g_UART4_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART4_IRQn);
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NVIC_DisableIRQ(UART4_IRQn);
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NVIC_SetPriority(UART4_IRQn, NVIC_PRIORITY_USART4); //中断优先级配置
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NVIC_EnableIRQ(UART4_IRQn);
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#endif
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break;
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case UART5_BASE:
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#ifdef USART_5_EN
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//usart_5_gpio_init(); //在GPIO表格中配置
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FL_UART_Init(UART5, &g_UART5_InitStruct);
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/* NVIC中断配置 */
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NVIC_ClearPendingIRQ(UART5_IRQn);
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NVIC_DisableIRQ(UART5_IRQn);
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NVIC_SetPriority(UART5_IRQn, NVIC_PRIORITY_USART5); //中断优先级配置
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NVIC_EnableIRQ(UART5_IRQn);
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#endif
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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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