/*
 * Main.c
 *
 *  Created on: 16 juli 2021
 *      Author: Daniel Mårtensson
 */

#include <stdio.h>

 /* Include Open SAE J1939 */
#include "Open_SAE_J1939/Open_SAE_J1939.h"

int main() {

	/* Create our J1939 structure with two ECU */
	J1939 j1939_1 = { 0 };
	J1939 j1939_2 = { 0 };

	/* Important to sent all non-address to 0xFF - Else we cannot use ECU address 0x0 */
	uint8_t i;
	for (i = 0; i < 255; i++) {
		j1939_1.other_ECU_address[i] = 0xFF;
		j1939_2.other_ECU_address[i] = 0xFF;
	}

	/* Set the ECU address */
	j1939_1.information_this_ECU.this_ECU_address = 0x1;							/* From 0 to 253 because 254 = error address and 255 = broadcast address */
	j1939_2.information_this_ECU.this_ECU_address = 0x2;

	/* Send data from ECU 2 to ECU 1 */
	uint8_t number_of_occurences = 37;												/* How many bytes to transfer */
	uint8_t pointer_type = 1;														/* User defined */
	uint8_t command = 0x7;															/* User defined */
	uint32_t pointer = 0xFFFFFF;													/* User defined */
	uint8_t pointer_extension = 0xFF; 												/* User defined */
	uint16_t key = 0xFFFF;															/* User defined */

	/* Send binary request to ECU 2 */
	SAE_J1939_Send_Request_DM14(&j1939_1, 0x2, number_of_occurences, pointer_type, command, pointer, pointer_extension, key);
	Open_SAE_J1939_Listen_For_Messages(&j1939_2);
	Open_SAE_J1939_Listen_For_Messages(&j1939_1);
	Open_SAE_J1939_Listen_For_Messages(&j1939_1);
	Open_SAE_J1939_Listen_For_Messages(&j1939_1);

	/* This is only here because we using the internal message buffer - In real CAN applications, this mess is not needed */
	for (i = 0; i < 15; i++) {
		Open_SAE_J1939_Listen_For_Messages(&j1939_2);
		Open_SAE_J1939_Listen_For_Messages(&j1939_1);
	}

	/* Pick up the message */
	printf("Message length: %i\n", j1939_1.from_other_ecu_dm.dm16.number_of_occurences);
	printf("Message text: %s\n", (char*)j1939_1.from_other_ecu_dm.dm16.raw_binary_data);
	printf("From ECU address: 0x%X", j1939_1.from_other_ecu_dm.dm16.from_ecu_address);
	return 0;
}