1 现象发现 在使用LoRaWAN开发板调试程序时,发现一个现象,LPUART的波特率设置为2400bps时,初始化异常,出现程序进入死循环的现象: 同样的,其他条件均不改变,若将波特率修改为<2400的值,则会出现初始化异常;但波特率>2400,则初始化正常,程序可正常运行。 从上述现象可初步得出:波特率值的大小是出现该异常的原因。 2...
/* USER CODE END LPUART1_Init 1 */ LPUART_InitStruct.BaudRate = 9600; LPUART_InitStruct.DataWidth = LL_LPUART_DATAWIDTH_8B; LPUART_InitStruct.StopBits = LL_LPUART_STOPBITS_1; LPUART_InitStruct.Parity = LL_LPUART_PARITY_NONE; LPUART_InitStruct.TransferDirection = LL_LPUART_DIRECTION_TX_R...
阅读原理图后发现，STLINK的VCP TX/RX是接在PA2/PA3针脚，巧合的是PA2/PA3可以复用为LPUART的TX ...
MX_LPUART1_UART_Init(); MX_USART1_UART_Init(); MX_RTC_Init(); // HAL_UART_Receive_IT(&hlpuart1, aRxBuffer, 1); // HAL_UART_Receive_IT(&huart1, aRxBuffer, 1); HAL_UART_Receive_IT(&hlpuart1, buff, 1); HAL_UART_Receive_IT(&huart1, buff, 1); while(1) { if(RxFlag1...
1;hlpuart1.Init.Parity = UART_PARITY_NONE;hlpuart1.Init.Mode = UART_MODE_TX_RX;hlpuart1....
低功耗串口LPUART TX = PA9, RX = PA10 串口USART1 TX = PA9, RX = PA10 (低功耗串口和USART1用的相同引脚) 串口USART2 TX = PA2, RX = PA3 串口USART3 TX = PB10, RX = PB11 串口UART4 TX = PC10, RX = PC11 (和SDIO共用) ...
STLK_TX:PB10(LPUART1) STLK_RX:PB11(LPUART1) ADC1_IN7:PA2 硬件外观: 引脚配置: 实现 核心代码 ADC转换 //初始化ADCstaticvoidMX_ADC1_Init(void){/* USER CODE BEGIN ADC1_Init 0 *//* USER CODE END ADC1_Init 0 */ADC_MultiModeTypeDef multimode = {0}; ...
基于rtt studio创建的stm32h750基础工程,LPUART1编译下载后程序可以运行但无log输出 记录一下开启低功耗串口lpuart1的问题点和临时解决办法,希望官方早日修复问题现象:使用rtt studio基于芯片创建了stm32h750的基础工程,log串口选用的LPUART1(tx:PB6 一只耳朵怪 2022-03-16 10:07:41 ...
低功耗串口LPUART TX = PA9, RX = PA10 串口USART1 TX = PA9, RX = PA10 (低功耗串口和USART1用的相同引脚) 串口USART2 TX = PA2, RX = PA3 串口USART3 TX = PB10, RX = PB11 串口UART4 TX = PC10, RX = PC11 (和SDIO共用) ...
(RTS and CTS signals) */UartHandle.Instance=USARTx;UartHandle.Init.BaudRate=9600;UartHandle.Init.WordLength=UART_WORDLENGTH_8B;UartHandle.Init.StopBits=UART_STOPBITS_1;UartHandle.Init.Parity=UART_PARITY_ODD;UartHandle.Init.HwFlowCtl=UART_HWCONTROL_NONE;UartHandle.Init.Mode=UART_MODE_TX_RX; ...