Resolved! uart8 get only get noise in stm32h747i-disco
if in the osciloscopio only get noise in the HAL_UART_Transmit(&huart8,(uint8_t*)msg,strlen(msg),100); which part of code should be badstatic void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct; /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOJ...