UART für das myMM32 Board Light
//--------------------------------------------------------------------------- // Title : simple extern UART Solution, ARM C application in SiSy //--------------------------------------------------------------------------- // Function : ... // Wiring : ... //--------------------------------------------------------------------------- // Hardware : ... // Clock : ... MHz // Language : ARM C // Date : ... // Version : ... // Author : ... //--------------------------------------------------------------------------- #include <stddef.h> #include <stdlib.h> #include "hardware.h" void initApplication() { SysTick_Config(SystemCoreClock/100); // UART3 RxT an PortD8 9600,8,n,1 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA,ENABLE); GPIO_InitTypeDef GPIO_InitStructure; GPIO_StructInit (&GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_0); GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_0); RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE); USART_InitTypeDef USART_InitStructure; USART_InitStructure.USART_BaudRate = 19200; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Tx|USART_Mode_Rx; USART_Init(USART1, &USART_InitStructure); USART_Cmd(USART1, ENABLE); } int main(void) { SystemInit(); initApplication(); uint8_t data=0; do{ data++; USART_SendData(USART1,data); waitMs(10); } while (true); return 0; } extern "C" void SysTick_Handler(void) { // Application SysTick } //------------------------------------------------------------------------------
Test
Nutzen sie die Schaltflächen Kompilieren, Linken und Brennen. Die nötigen Verbindungen auf dem Board sind bereits in der Hardware implementiert. Testen Sie die Anwendung.
