Posted on August 16, 2014 at 18:52 Hi,
my experience with serial comunication is very poor, after six months of ''pain'' trying to implement some AHRS algorithms, now i want to port that data to matlab for example, but i need every dataset to be in its own separate row when i send it to serial
#define GPIO_RS232_TX GPIO_Pin_6
#define GPIO_RS232_RX GPIO_Pin_7
#define baudrate 9600
void serial_init(){ // serial usart module & pins initialization
GPIO_InitTypeDef GPIO_InitStruct;
USART_InitTypeDef USART_InitStruct;
GPIO_InitStruct.GPIO_Pin = GPIO_RS232_TX | GPIO_RS232_RX ;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_OType = GPIO_OType_OD;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_Init(GPIOB, &GPIO_InitStruct);
//Pins modules asigment
GPIO_PinAFConfig(GPIOB, GPIO_PinSource6, GPIO_AF_USART1); // Serial TX
GPIO_PinAFConfig(GPIOB, GPIO_PinSource7, GPIO_AF_USART1); // Serial Rx
USART_InitStruct.USART_BaudRate = baudrate; // the baudrate is set to the value we passed into this init function
USART_InitStruct.USART_WordLength = USART_WordLength_8b;// we want the data frame size to be 8 bits (standard)
USART_InitStruct.USART_StopBits = USART_StopBits_1; // we want 1 stop bit (standard)
USART_InitStruct.USART_Parity = USART_Parity_No; // we don't want a parity bit (standard)
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None; // we don't want flow control (standard)
USART_InitStruct.USART_Mode = USART_Mode_Tx | USART_Mode_Rx; // we want to enable the transmitter and the receiver
USART_Init(USART1, &USART_InitStruct); // again all the properties are passed to the USART_Init function which takes care of all the bit setting
// Usart_interrupt_enable()
USART_Cmd(USART1, ENABLE);
}
//// function just to send data
void serial_out(USART_TypeDef* USARTx, volatile char *s){
while(*s){
// wait until data register is empty
while( !(USARTx->SR & 0x00000040) );
USART_SendData(USARTx, *s);
*s++;
} }
for example i have 3 sets of chars
char txt1;
char txt2
char txt3
for each of them i use the serial out function like bellow:
serial_out(USART1, txt1);
serial_out(USART1, txt2);
serial_out(USART1, txt3);
The data is recived by the PC trough a serial-usb converter, and the problem is how to align every character ser in separate row
for example i want every txtX on its own raw
At the moment if i read the data, they are all on the same row... How can i separte them?
My current code using inemo and output via chars and then to serial
float RoLl=xEulerAngles.m_fRoll* 0f / 3.141592f;
float Pici=xEulerAngles.m_fPitch * 0f / 3.141592f;
float YaW=xEulerAngles.m_fYaw * 0f / 3.141592f;
//converts to string
sprintf(txt1,''%f'',RoLl);
sprintf(txt2,''%f'',Pici);
sprintf(txt3,''%f'',YaW);
//sends the strings to rs-232
serial_out(USART1,txt1);
serial_out(USART1,txt2);
serial_out(USART1,txt3);
