Posted on September 01, 2015 at 12:03Hello,
I am trying to send data to a computer with an HC 06 linked to an STM32F0 Discovery.
Here is my code :
/* USART2 PA.2 Tx, PA.3 Rx STM32F0-Discovery*/
/* Includes ------------------------------------------------------------------*/
#include ''main.h''
#include ''stdio.h''
/* Private variables ---------------------------------------------------------*/
/* Functions prototypes ---------------------------------------------------------*/
void RCC_Configuration(void)
{
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); /*Activation des clocks de l'usart2 et du port A*/
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);
}
void configUSART2 (void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 9600;
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_Rx | USART_Mode_Tx;
USART_Init(USART2, &USART_InitStructure);
USART_Cmd(USART2,ENABLE);
}
void configGPIOA (void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_1);
}
void Usart2Send(uint8_t data)
{
USART_SendData(USART2, (uint8_t) data);
//Loop until the end of transmission
while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET)// Wait for Empty
{
}
}
void outstring(char *s)
{
while(*s)
{
/* Loop until transmit data register is empty */
while(USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET)// Wait for Empty
USART_SendData(USART2, (uint8_t)*s++);
}
}
uint8_t Usart2Read(void){
while ( USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);
return (uint8_t)USART_ReceiveData(USART2);
}
int main(void)
{
RCC_Configuration();
configUSART2();
configGPIOA();
Usart2Send('A');
Usart2Send('T');
while(1)
{
}
}
Here is what i get on Putty :
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒AT▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒n▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒Ǡ▒̸▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒l▒▒▒
▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒A
I configured on keil on putty the same parameters : 9600baud, 8 bits data, 1 bit stop, no parity and no verification.
Any idea ? (by the way, I did not find how to put my code properly on the forum, sorry about that).
Thanks in advance
