Simon NOWAK
/
RegistreSerial
Project to use Serial with registers
main.cpp
- Committer:
- SimonNOWAK
- Date:
- 2017-04-05
- Revision:
- 2:1deea3b4119e
- Parent:
- 1:2b6896966307
- Child:
- 3:fba5fc24faff
File content as of revision 2:1deea3b4119e:
#include "mbed.h" void usartSetup (void) { RCC->IOPENR |= RCC_IOPENR_IOPBEN; RCC->APB2ENR |= RCC_APB2ENR_USART1EN; // enable clock for USART1 USART1->BRR = 320000 / 96; // set baudrate GPIOB->MODER &= ~GPIO_MODER_MODE6_0; GPIOB->MODER |= GPIO_MODER_MODE6_1; GPIOB->AFR[1] |= 0x40; GPIOB->OTYPER &= ~GPIO_OTYPER_OT_6; USART1->CR1 |= (USART_CR1_RE | USART_CR1_TE | USART_CR1_UE); // RX, TX enable } void SendChar(){ Serial pc(USBTX, USBRX); pc.printf("TXE: %02X\r\n", USART1->ISR); char stringtosend[] = {"Salut ca va ? Oui et toi ? Oh yes ca fonctionne bien ahahahahahahahahahahahah\r\n"}; for(int send = 0; send < sizeof(stringtosend); send++){ //On attend que la transmission soit terminée while((USART1->ISR & USART_ISR_TC) != USART_ISR_TC); //Si on a tout envoyé if(send == sizeof(stringtosend)) { send=0; USART1->ICR = USART_ICR_TCCF; /* Clear transfer complete flag */ } else { //Si le registre de données est vide while (!(USART1->ISR & (USART1->ISR | USART_ISR_TXE))); USART1->TDR = stringtosend[send]; } } } int main() { usartSetup(); SendChar(); }