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UART transmitter issue in NUCLEO-F746ZG board

Saranya_2003
Associate

i am facing issue with uart transmission the data to the realterm software i didnot recieving the data to console 

i am attaching the code here 

#include "stm32f746xx.h" #include<stdint.h> #include "uart.h" int main(void) { uart4_tx_init(); RCC->AHB1ENR |= GPIOBEN; // set the mode of the gpio pin for gpiob(pb0) and gpioc(pc13) GPIOB->MODER |=(1U<<0); GPIOB->MODER &=~(1U<<1); while(1) { uart4_write('h'); // GPIOB->ODR ^= PIN0; } }
3 REPLIES 3
AScha.3
Chief III

Why not using Cube/HAL ?  ( .. to setup+use the uart )

If you dont "like" it, just use it, generate code, then look how its doing - so you see/know, how to do (even if you dont use it then.) . 

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Saranya_2003
Associate

i am using the stm32cubeide for checking purpose i install RealTerm

//set PA2 as alternative function
GPIOB->MODER |=(1U<<4);
GPIOB->MODER &=~(1U<<5);

Want GPIOA, not GPIOB

Doesn't the NUCLEO-F746ZG use USART3 PD8 / PD9 for the ST-LINK VCP ??

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