Microblaze core on Breadboarded Spartan 3A [XC3S200A-4VQG100C]

For details on programming the FPGA with Xilinx ISE and SDK, see youtube video at beginning of page.

Verilog code (top.v)

	module top(
	input clk_fpga,
	input reset,
	input rx,
	output tx,
	input [7:0] switch,
	output [7:0] leds
	);

	microblaze_mcs mcs_0 (
	.Clk(clk_fpga), // input Clk
	.Reset(reset), // input Reset
	.UART_Rx(rx), // input UART_Rx
	.UART_Tx(tx), // output UART_Tx
	.GPO1(leds), // output [7 : 0] GPO1
	.GPI1(switch), // input [7 : 0] GPI1
	.GPI1_Interrupt() // output GPI1_Interrupt
	);


	endmodule

view raw top.v hosted with ❤ by GitHub

C code for microblaze core hello_world

	#include <stdio.h>
	#include "platform.h"
	#include "xparameters.h"
	#include "xiomodule.h"

	void print(char *str);

	int main()
	{
	init_platform();

	u32 data;
	XIOModule gpi;
	XIOModule gpo;

	print("Hello World\n\r");

	data = XIOModule_Initialize(&gpi, XPAR_IOMODULE_0_DEVICE_ID);
	data = XIOModule_Start(&gpi);

	data = XIOModule_Initialize(&gpo, XPAR_IOMODULE_0_DEVICE_ID);
	data = XIOModule_Start(&gpo);

	while (1)
	{
	print("Hello World\n\r");
	data = XIOModule_DiscreteRead(&gpi, 1);
	XIOModule_DiscreteWrite(&gpo, 1, data);

	}

	cleanup_platform();

	return 0;
	}

view raw hello_world.c hosted with ❤ by GitHub