PIC to PIC UART communication to Blink the LED - pic

Question

I want to send a command by PIC12F1572 to another PIC12F1572 through UART
and in that I want to send a function which will blink the LED on the slave PIC.
I have done some code but I am somewhat confusing
can anyone help me here?
P.S- I am Using MPLAB X IDE v3.50
Master/Transmitter PIC12F1572:
#include <xc.h>
#include "main.h"
#include "config.h"
#include "TYPEDEF_Definitions.h"
#include "PIC_12_Timer0.h"
#include "PIC_12_UART.h"
#include "System_init.h"
#include "Pin_manager.h"
#include "LED.h"
#define _XTAL_FREQ 16000000
void main()
{
SYSTEM_Initialize();
//pin_config();
LATA = 0x00;
UART_Init(); //Initialize UART
// StartLedBlinkingWithColor(color);
TRISAbits.TRISA2 = 1; //make RA2 as input
while (1)
{
//LATAbits.LATA2 = 1;
uint8_t Var = 0x61;
//uint8_t Var = LATAbits.LATA2;
if(TXSTAbits.TRMT == 1)
{
UART_write(LED_Blink()); // is it possible?? or how it will be possible
// __delay_ms(1000);
}
LATAbits.LATA2 = 1;
}
}
void LED_Blink()
{
LATAbits.LATA2 = 1;
LATAbits.LATA5 = 1;
__delay_ms(1000);
LATAbits.LATA2 = 0;
LATAbits.LATA5 = 0;
}
RECEIVER/SLAVE PIC12F1572:
#include <xc.h>
#include "config.h"
#include "PIC_12F_GPIO.h"
#include "Led.h"
#include "Interruptmanage.h"
#include "PIC_12F_UART.h"
#include "PIC_12F_TIMER0.h"
#include "main.h"
void main( void)
{
uint8 data;
InterruptInit();
TIMER0_Init();
UART_Init();
InitLeds(); // here I init GPIO pin..no prb here
// SetLedOff();
/*-------------R E C E I V E R*------------*/
while (1)
{ // Endless loop
if (UART_DataReady() ) // I get prob here ..
{
PORTA = UART_ReadOneByte(); // read the received data, [how can I receive my Led_Blink() function??
LATAbits.LATA2 = 1;
//LATAbits.LATA2 = data;
//SendByteSerially(data);
}
}
}

Answer 1

There are a couple of things to consider:
You cannot "send a function" through the UART. Therefore, the LED_Blink() function needs to be on the receiver side. Before doing anything else, verify that the function works on the receiver side, without any UART interaction.
Next, you can define a protocol, which is basically deciding which byte values you send through the UART should trigger the LED_Blink() call on the receiver side. For example, if you decide to use the byte value of 42 to trigger a LED blink, your sender would call UART_write(42) and on the receiver side, you would have something like the following:
data = UART_ReadOneByte();
if (data == 42) {
LED_Blink();
}

Answer 2

So for Receiving data from UART and saving it in array and use the data to vlink nthe LED I Have done this code: Anyone interested can have a look
while (1)
{
if (EUSART_DataReady)
{
for (i = 0; i<FRAMESIZE; i++) //#define FRAMESIZE 19
{
RX_Buffer[i] = EUSART_Read();
if (RX_Buffer[i] == '\n') //check'\n' in the end of frame
break;
}
RX_Buffer[i] = '\n'; //append '\n' at the end of stoaring array for detection of frame
RX_Buffer[i+1] = '\0'; // End of an array
EUSART_WriteAnArrayOfBytes(RX_Buffer);
if(RX_Buffer[0]=='R' && RX_Buffer[FRAMESIZE-2] == '\n') //check for correct frame
{
LATAbits.LATA2 = 1;
__delay_ms(2000);
LATAbits.LATA2 = 0;
__delay_ms(1000);
}
}
}