Hello,
I have copied the code below.
#include "components.h"
void UART_Init(void);
void GPIO_Init(void);
void UART_Transmit(uint8_t);
void UART_Receive(void);
uint8_t TransData[] = {"Hello World...!\n\r"};
#define NUMBER_OF_BYTES_SENT sizeof(TransData)
uint8_t ReceivedData;
/*
* Application entry point.
*/
int main(void)
{
unsigned short j = 0;
/* Initialization of all the imported components in the order specified in
the application wizard. The function is generated automatically.*/
componentsInit();
GPIO_Init();
UART_Init();
/* Transmit welcome message */
for (j = 0; j < NUMBER_OF_BYTES_SENT; j++) /* Loop for character string */
{
UART_Transmit(TransData[j]);
}
/* Application main loop.*/
while(1)
{
UART_Receive();
UART_Transmit(ReceivedData);
}
}
void UART_Transmit(uint8_t ch)
{
unsigned char *ptr = (unsigned char *)&LINFLEX_0.BDRL.R + 3;
*ptr = ch; /* write character to transmit buffer */
while (1 != LINFLEX_0.UARTSR.B.DTF); /* Wait for data transmission completed flag */
LINFLEX_0.UARTSR.R = 0x0002;
}
void UART_Receive(void)
{
while (LINFLEX_0.UARTSR.B.DRF != 1);
while (LINFLEX_0.UARTSR.B.RMB != 1);
ReceivedData = (uint8_t) LINFLEX_0.BDRM.B.DATA4;
LINFLEX_0.UARTSR.R = 0x0204; /* clear the DRF and RMB flags */
}
void UART_Init(void)
{
/*Alternate functions are chosen by setting the values of the PCR.PA bit-fields inside the SIUL module.
PCR.PA = 00 for AF0; PCR.PA = 01 for AF1; PCR.PA = 10 for AF2; PCR.PA = 11 for AF2.
This is intended to select the output functions;
to use one of the input functions, the PCR.IBE bit must be written to ‘1’, regardless of the values selected in the PCR.PA bit-fields. */
/* UART Tx and Rx */
SIU.PCR[16].R = 0x0E00;
SIU.PCR[17].R = 0x0100;
/* LINFLEX in an Initialization mode */
LINFLEX_0.LINCR1.B.INIT = 1;
LINFLEX_0.LINCR1.B.SLEEP = 0;
/* wait for the INIT mode */
//while (0x1000 != (LINFLEX_0.LINSR.R && 0xF000));
LINFLEX_0.LINSR.R = 0xFFFF; /* Clearing LINSR register */
LINFLEX_0.UARTSR.R = 0xFFFF; /* Clearing UARTSR register */
/* Start UART mode */
LINFLEX_0.UARTCR.B.UART = 1;
LINFLEX_0.UARTCR.R = 0x0003; /* 8-bit data, Parity transmit/check disabled */
/* Generate Baud Rate = 115200 at 16 MHz */
/* BAUD RATE = 16 MHz/(16 * LFDIV)
For Baud Rate of 115200, LFDIV = 8.68
LINFBRR = 16 * 0.68 = 11d i.e. 0xB & LINIBRR = 0x8 */
LINFLEX_0.LINFBRR.B.DIV_F = 0xB; /* LINFBRR (containing the fraction bits must be programmed before the LINIBRR */
LINFLEX_0.LINIBRR.B.DIV_M = 0x8;
/* Exit Initialization mode */
LINFLEX_0.LINCR1.B.INIT = 0;
LINFLEX_0.LINCR1.B.SLEEP = 0;
/* Transmit buffer size = 1 byte, Enable Transmission, Enable Reception */
LINFLEX_0.UARTCR.B.TDFLTFC = 0;
LINFLEX_0.UARTCR.B.TXEN = 1;
LINFLEX_0.UARTCR.B.RXEN = 1;
}
Transmitter in this code is working . But, Receiver part is not working. TO flag in UARTSR register is getting set before receiving a single byte. Please, go throgh the code once if I am missing something in the code.
Thanks and Regards,
Pooja Wani
