问答

各位前辈好。第一次用AC78406芯片。使用uart0 uart1中断接受不定长数据。单个串口可以接收了。两个串口同时使用只有先初始化的那个串口可以进入中断。请问哪里配置有问题吗？代码是用AutoGen Studio生成的。[color=#dadada][backcolor=rgb(30, 30, 30)][font=Consolas, "][color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]string.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]ckgen_drv.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]gpio_drv.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]gpio_hw.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]uart_drv.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]uart_hw.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]uart_irq.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]dma_drv.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]gpio.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]drv_comm.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]FreeRTOS.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]event_groups.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]include[/color][color=#c8c8c8] [/color][color=#e8c9bb]"[/color][color=#ce9178]ac7840x_irq_cb.h[/color][color=#e8c9bb]"[/color] [color=#b4b4b4]#[/color][color=#9a9a9a]define[/color][color=#c8c8c8] [/color][color=#beb7ff]RECELENGTHMAX[/color][color=#c8c8c8] [/color][color=#b5cea8]1024[/color] [color=#569cd6]static[/color] [color=#4ec9b0]uart_state_t[/color] [color=#c8c8c8]s_uart0State[/color] [color=#b4b4b4]=[/color] [color=#b4b4b4]{[/color][color=#569cd6]NULL[/color][color=#b4b4b4]};[/color][color=#57a64a] /*UART运行变量状态*/[/color] [color=#569cd6]static[/color] [color=#4ec9b0]uart_state_t[/color] [color=#c8c8c8]s_uart1State[/color] [color=#b4b4b4]=[/color] [color=#b4b4b4]{[/color][color=#569cd6]NULL[/color][color=#b4b4b4]};[/color][color=#57a64a] /*UART运行变量状态*/[/color] [color=#569cd6]static[/color] [color=#4ec9b0]uart_user_config_t[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4];[/color] [color=#569cd6]static[/color] [color=#4ec9b0]uart_user_config_t[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4];[/color] [color=#569cd6]static[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]char[/color] [color=#c8c8c8]g_receive0Data[/color] [color=#b4b4b4]=[/color] [color=#b5cea8]0[/color][color=#b4b4b4];[/color] [color=#569cd6]static[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]short[/color] [color=#569cd6]int[/color] [color=#c8c8c8]g_receive0Data_count[/color] [color=#b4b4b4]=[/color] [color=#b5cea8]0[/color][color=#b4b4b4];[/color] [color=#569cd6]static[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]char[/color] [color=#c8c8c8]receive0Data_group[/color][color=#b4b4b4][[/color][color=#beb7ff]RECELENGTHMAX[/color] [color=#b4b4b4]=[/color] [color=#b4b4b4]{[/color][color=#b5cea8]0[/color][color=#b4b4b4]};[/color] [color=#569cd6]static[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]char[/color] [color=#c8c8c8]g_receive1Data[/color] [color=#b4b4b4]=[/color] [color=#b5cea8]0[/color][color=#b4b4b4];[/color] [color=#569cd6]static[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]short[/color] [color=#569cd6]int[/color] [color=#c8c8c8]g_receive1Data_count[/color] [color=#b4b4b4]=[/color] [color=#b5cea8]0[/color][color=#b4b4b4];[/color] [color=#569cd6]static[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]char[/color] [color=#c8c8c8]receive1Data_group[/color][color=#b4b4b4][[/color][color=#beb7ff]RECELENGTHMAX[/color] [color=#b4b4b4]=[/color] [color=#b4b4b4]{[/color][color=#b5cea8]0[/color][color=#b4b4b4]};[/color] [color=#4ec9b0]EventGroupHandle_t[/color] [color=#c8c8c8]EventGroupHandle_uart[/color] [color=#b4b4b4]=[/color] [color=#569cd6]NULL[/color][color=#b4b4b4];[/color] [color=#57a64a]/**[/color] [color=#57a64a] * [/color][color=#569cd6]@brief[/color][color=#57a64a] This function handle UART0 rx interrupt.[/color] [color=#57a64a] * [/color][color=#569cd6]@param[/color][color=#57a64a][[/color][color=#569cd6]in[/color][color=#57a64a]] [/color][color=#9a9a9a]driverState[/color][color=#57a64a]: callback parameter[/color] [color=#57a64a] * [/color][color=#569cd6]@param[/color][color=#57a64a][[/color][color=#569cd6]in[/color][color=#57a64a]] [/color][color=#9a9a9a]event[/color][color=#57a64a]: callback parameter[/color] [color=#57a64a] * [/color][color=#569cd6]@param[/color][color=#57a64a][[/color][color=#569cd6]in[/color][color=#57a64a]] [/color][color=#9a9a9a]userData[/color][color=#57a64a]: callback parameter[/color] [color=#57a64a] * [/color][color=#569cd6]@return[/color][color=#57a64a] none[/color] [color=#57a64a] */[/color] [color=#569cd6]void[/color] [color=#dcdcaa]UART0_RX_IRQHandler_Callback[/color][color=#b4b4b4]([/color][color=#569cd6]void[/color] [color=#b4b4b4]*[/color][color=#9a9a9a]driverState[/color][color=#b4b4b4],[/color] [color=#4ec9b0]uint32_t[/color] [color=#9a9a9a]event[/color][color=#b4b4b4],[/color] [color=#569cd6]void[/color] [color=#b4b4b4]*[/color][color=#9a9a9a]userData[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#57a64a] /* USER CODE BEGIN UART0_RX_IRQHandler_Callback */[/color] [color=#d8a0df]if[/color] [color=#b4b4b4]([/color][color=#9a9a9a]event[/color] [color=#b4b4b4]==[/color] [color=#b5cea8]UART_EVENT_RX_FULL[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#b4b4b4] [/color][color=#57a64a]// xEventGroupSetBits(EventGroupHandle_uart1, EVENT_UART1_RX);[/color] [color=#c8c8c8]receive0Data_group[/color][color=#b4b4b4][[/color][color=#c8c8c8]g_receive0Data_count[/color] [color=#b4b4b4]=[/color] [color=#c8c8c8]g_receive0Data[/color][color=#b4b4b4];[/color] [color=#c8c8c8]g_receive0Data_count[/color][color=#b4b4b4]++;[/color] [color=#d8a0df]if[/color] [color=#b4b4b4]([/color][color=#c8c8c8]g_receive0Data_count[/color] [color=#b4b4b4]>=[/color] [color=#beb7ff]RECELENGTHMAX[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#c8c8c8]g_receive0Data_count[/color] [color=#b4b4b4]=[/color] [color=#b5cea8]0[/color][color=#b4b4b4];[/color] [color=#b4b4b4]}[/color] [color=#b4b4b4]}[/color] [color=#dcdcaa]UART_DRV_ReceiveData[/color][color=#b4b4b4]([/color][color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]g_receive0Data[/color][color=#b4b4b4],[/color] [color=#b5cea8]1[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* USER CODE END UART0_RX_IRQHandler_Callback */[/color] [color=#b4b4b4]}[/color] [color=#57a64a]/**[/color] [color=#57a64a] * [/color][color=#569cd6]@brief[/color][color=#57a64a] This function handle UART1 rx interrupt.[/color] [color=#57a64a] * [/color][color=#569cd6]@param[/color][color=#57a64a][[/color][color=#569cd6]in[/color][color=#57a64a]] [/color][color=#9a9a9a]driverState[/color][color=#57a64a]: callback parameter[/color] [color=#57a64a] * [/color][color=#569cd6]@param[/color][color=#57a64a][[/color][color=#569cd6]in[/color][color=#57a64a]] [/color][color=#9a9a9a]event[/color][color=#57a64a]: callback parameter[/color] [color=#57a64a] * [/color][color=#569cd6]@param[/color][color=#57a64a][[/color][color=#569cd6]in[/color][color=#57a64a]] [/color][color=#9a9a9a]userData[/color][color=#57a64a]: callback parameter[/color] [color=#57a64a] * [/color][color=#569cd6]@return[/color][color=#57a64a] none[/color] [color=#57a64a] */[/color] [color=#569cd6]void[/color] [color=#dcdcaa]UART1_RX_IRQHandler_Callback[/color][color=#b4b4b4]([/color][color=#569cd6]void[/color] [color=#b4b4b4]*[/color][color=#9a9a9a]driverState[/color][color=#b4b4b4],[/color] [color=#4ec9b0]uint32_t[/color] [color=#9a9a9a]event[/color][color=#b4b4b4],[/color] [color=#569cd6]void[/color] [color=#b4b4b4]*[/color][color=#9a9a9a]userData[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#57a64a] /* USER CODE BEGIN UART1_RX_IRQHandler_Callback */[/color] [color=#d8a0df]if[/color] [color=#b4b4b4]([/color][color=#9a9a9a]event[/color] [color=#b4b4b4]==[/color] [color=#b5cea8]UART_EVENT_RX_FULL[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#b4b4b4] [/color][color=#57a64a]// xEventGroupSetBits(EventGroupHandle_uart1, EVENT_UART1_RX);[/color] [color=#c8c8c8]receive1Data_group[/color][color=#b4b4b4][[/color][color=#c8c8c8]g_receive1Data_count[/color] [color=#b4b4b4]=[/color] [color=#c8c8c8]g_receive1Data[/color][color=#b4b4b4];[/color] [color=#c8c8c8]g_receive1Data_count[/color][color=#b4b4b4]++;[/color] [color=#d8a0df]if[/color] [color=#b4b4b4]([/color][color=#c8c8c8]g_receive1Data_count[/color] [color=#b4b4b4]>=[/color] [color=#beb7ff]RECELENGTHMAX[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#c8c8c8]g_receive1Data_count[/color] [color=#b4b4b4]=[/color] [color=#b5cea8]0[/color][color=#b4b4b4];[/color] [color=#b4b4b4]}[/color] [color=#b4b4b4]}[/color] [color=#dcdcaa]UART_DRV_ReceiveData[/color][color=#b4b4b4]([/color][color=#b5cea8]1[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]g_receive1Data[/color][color=#b4b4b4],[/color] [color=#b5cea8]1[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* USER CODE END UART1_RX_IRQHandler_Callback */[/color] [color=#b4b4b4]}[/color] [color=#57a64a]/* UART0 init function */[/color] [color=#569cd6]static[/color] [color=#569cd6]void[/color] [color=#dcdcaa]ATC_UART0_Init[/color][color=#b4b4b4]([/color][color=#569cd6]void[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#dcdcaa]memset[/color][color=#b4b4b4](&[/color][color=#c8c8c8]uart0Config[/color][color=#b4b4b4],[/color] [color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#569cd6]sizeof[/color][color=#b4b4b4]([/color][color=#c8c8c8]uart0Config[/color][color=#b4b4b4]));[/color] [color=#57a64a] /**[/color] [color=#57a64a] GPIO Configuration for UART0[/color] [color=#57a64a] PB1 --> UART0_TX[/color] [color=#57a64a] PB0 --> UART0_RX[/color] [color=#57a64a] */[/color] [color=#dcdcaa]GPIO_DRV_SetMuxModeSel[/color][color=#b4b4b4]([/color][color=#beb7ff]PORTB[/color][color=#b4b4b4],[/color] [color=#b5cea8]1[/color][color=#b4b4b4],[/color] [color=#b5cea8]PORT_MUX_ALT2[/color][color=#b4b4b4]);[/color] [color=#dcdcaa]GPIO_DRV_SetMuxModeSel[/color][color=#b4b4b4]([/color][color=#beb7ff]PORTB[/color][color=#b4b4b4],[/color] [color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#b5cea8]PORT_MUX_ALT2[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* UART0 interrupt1 Init */[/color] [color=#dcdcaa]NVIC_SetPriority[/color][color=#b4b4b4]([/color][color=#b5cea8]UART0_IRQn[/color][color=#b4b4b4],[/color] [color=#b5cea8]0[/color][color=#b4b4b4]);[/color] [color=#dcdcaa]NVIC_EnableIRQ[/color][color=#b4b4b4]([/color][color=#b5cea8]UART0_IRQn[/color][color=#b4b4b4]);[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4].[/color]baudRate [color=#b4b4b4]=[/color] [color=#b5cea8]38400[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4].[/color]parityMode [color=#b4b4b4]=[/color] [color=#b5cea8]UART_PARITY_DISABLED[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4].[/color]stopBitCount [color=#b4b4b4]=[/color] [color=#b5cea8]UART_ONE_STOP_BIT[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4].[/color]bitCountPerChar [color=#b4b4b4]=[/color] [color=#b5cea8]UART_8_BITS_PER_CHAR[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4].[/color]transferType [color=#b4b4b4]=[/color] [color=#b5cea8]UART_USING_INTERRUPTS[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart0Config[/color][color=#b4b4b4].[/color]rxCallback [color=#b4b4b4]=[/color] [color=#dcdcaa]UART0_RX_IRQHandler_Callback[/color][color=#b4b4b4];[/color] [color=#dcdcaa]UART_DRV_Init[/color][color=#b4b4b4]([/color][color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]s_uart0State[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]uart0Config[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* USER CODE BEGIN UART0_Init 2 */[/color] [color=#dcdcaa]UART_DRV_ReceiveData[/color][color=#b4b4b4]([/color][color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]g_receive0Data[/color][color=#b4b4b4],[/color] [color=#b5cea8]1[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* USER CODE END UART0_Init 2 */[/color] [color=#b4b4b4]}[/color] [color=#57a64a]/* UART1 init function */[/color] [color=#569cd6]static[/color] [color=#569cd6]void[/color] [color=#dcdcaa]ATC_UART1_Init[/color][color=#b4b4b4]([/color][color=#569cd6]void[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#dcdcaa]memset[/color][color=#b4b4b4](&[/color][color=#c8c8c8]uart1Config[/color][color=#b4b4b4],[/color] [color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#569cd6]sizeof[/color][color=#b4b4b4]([/color][color=#c8c8c8]uart1Config[/color][color=#b4b4b4]));[/color] [color=#57a64a] /**[/color] [color=#57a64a] GPIO Configuration for UART1[/color] [color=#57a64a] PC9 --> UART1_TX[/color] [color=#57a64a] PC8 --> UART1_RX[/color] [color=#57a64a] */[/color] [color=#dcdcaa]GPIO_DRV_SetMuxModeSel[/color][color=#b4b4b4]([/color][color=#beb7ff]PORTC[/color][color=#b4b4b4],[/color] [color=#b5cea8]9[/color][color=#b4b4b4],[/color] [color=#b5cea8]PORT_MUX_ALT2[/color][color=#b4b4b4]);[/color] [color=#dcdcaa]GPIO_DRV_SetMuxModeSel[/color][color=#b4b4b4]([/color][color=#beb7ff]PORTC[/color][color=#b4b4b4],[/color] [color=#b5cea8]8[/color][color=#b4b4b4],[/color] [color=#b5cea8]PORT_MUX_ALT2[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* UART1 interrupt1 Init */[/color] [color=#dcdcaa]NVIC_SetPriority[/color][color=#b4b4b4]([/color][color=#b5cea8]UART1_IRQn[/color][color=#b4b4b4],[/color] [color=#b5cea8]1[/color][color=#b4b4b4]);[/color] [color=#dcdcaa]NVIC_EnableIRQ[/color][color=#b4b4b4]([/color][color=#b5cea8]UART1_IRQn[/color][color=#b4b4b4]);[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4].[/color]baudRate [color=#b4b4b4]=[/color] [color=#b5cea8]38400[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4].[/color]parityMode [color=#b4b4b4]=[/color] [color=#b5cea8]UART_PARITY_DISABLED[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4].[/color]stopBitCount [color=#b4b4b4]=[/color] [color=#b5cea8]UART_ONE_STOP_BIT[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4].[/color]bitCountPerChar [color=#b4b4b4]=[/color] [color=#b5cea8]UART_8_BITS_PER_CHAR[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4].[/color]transferType [color=#b4b4b4]=[/color] [color=#b5cea8]UART_USING_INTERRUPTS[/color][color=#b4b4b4];[/color] [color=#c8c8c8]uart1Config[/color][color=#b4b4b4].[/color]rxCallback [color=#b4b4b4]=[/color] [color=#dcdcaa]UART1_RX_IRQHandler_Callback[/color][color=#b4b4b4];[/color] [color=#dcdcaa]UART_DRV_Init[/color][color=#b4b4b4]([/color][color=#b5cea8]1[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]s_uart1State[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]uart1Config[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* USER CODE BEGIN UART1_Init 2 */[/color] [color=#dcdcaa]UART_DRV_ReceiveData[/color][color=#b4b4b4]([/color][color=#b5cea8]1[/color][color=#b4b4b4],[/color] [color=#b4b4b4]&[/color][color=#c8c8c8]g_receive1Data[/color][color=#b4b4b4],[/color] [color=#b5cea8]1[/color][color=#b4b4b4]);[/color] [color=#57a64a] /* USER CODE END UART1_Init 2 */[/color] [color=#b4b4b4]}[/color] [color=#569cd6]void[/color] [color=#dcdcaa]drv_comm_init[/color][color=#b4b4b4]([/color][color=#569cd6]void[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#dcdcaa]memset[/color][color=#b4b4b4]([/color][color=#c8c8c8]receive0Data_group[/color][color=#b4b4b4],[/color] [color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#569cd6]sizeof[/color][color=#b4b4b4]([/color][color=#c8c8c8]receive0Data_group[/color][color=#b4b4b4]));[/color] [color=#dcdcaa]memset[/color][color=#b4b4b4]([/color][color=#c8c8c8]receive1Data_group[/color][color=#b4b4b4],[/color] [color=#b5cea8]0[/color][color=#b4b4b4],[/color] [color=#569cd6]sizeof[/color][color=#b4b4b4]([/color][color=#c8c8c8]receive1Data_group[/color][color=#b4b4b4]));[/color] [color=#c8c8c8]EventGroupHandle_uart[/color] [color=#b4b4b4]=[/color] [color=#dcdcaa]xEventGroupCreate[/color][color=#b4b4b4]();[/color] [color=#dcdcaa]ATC_UART0_Init[/color][color=#b4b4b4]();[/color] [color=#dcdcaa]ATC_UART1_Init[/color][color=#b4b4b4]();[/color] [color=#b4b4b4]}[/color] [color=#569cd6]void[/color] [color=#dcdcaa]drv_comm_write[/color][color=#b4b4b4]([/color][color=#569cd6]unsigned[/color] [color=#569cd6]char[/color] [color=#b4b4b4]*[/color][color=#9a9a9a]p_data[/color][color=#b4b4b4],[/color] [color=#569cd6]unsigned[/color] [color=#569cd6]char[/color] [color=#9a9a9a]length[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#b4b4b4]}[/color] [color=#569cd6]void[/color] [color=#dcdcaa]drv_comm_read[/color][color=#b4b4b4]([/color][color=#569cd6]void[/color][color=#b4b4b4])[/color] [color=#b4b4b4]{[/color] [color=#b4b4b4]}[/color] [/font][/backcolor][/color]

STM32 串口中断接收函数定义的变量uint8_t Receive_Data ，在主函数中已经声明为全局变量exten uint8_t Receive_Data 主函数发送 Receive_Data 时 发送结果都是0，不知道时什么原因？