Posted on July 13, 2017 at 07:31
hi
im connecting two board that one of them is stm32f0 and i configure its usart as this below
/* Enable the peripheral clock of GPIOA */
RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
GPIOA->MODER |= GPIO_MODER_MODER9_1 | GPIO_MODER_MODER10_1; // two pin pa9 and pa10 use alternate function
GPIOA->AFR[1] |= (1 << 4) | (1 << 8) ;
/* Enable the peripheral clock USART1 */
RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
/* (1) Oversampling by 16, 9600 baud */
/* (2) 8 data bit, 1 start bit, 1 stop bit, no parity */
USART1->BRR = 480000 / 96; /* (1) */
USART1->CR1 = USART_CR1_RXNEIE | USART_CR1_RE | USART_CR1_TE | USART_CR1_UE; /* (2) */
/* Configure IT */
/* (3) Set priority for USART1_IRQn */
/* (4) Enable USART1_IRQn */
NVIC_SetPriority(USART1_IRQn, 0); /* (3) */
NVIC_EnableIRQ(USART1_IRQn); /* (4) */�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?
in code above i have start bit that cause problem in another board that use lpc1768 MCU
i have overflow problem in lpc17
what the problem that when something sending to lpc with stm its get this error?
#usart #stm32f0
