| Line 20... |
Line 20... |
// Creator: Dan Gisselquist, Ph.D.
|
// Creator: Dan Gisselquist, Ph.D.
|
// Gisselquist Technology, LLC
|
// Gisselquist Technology, LLC
|
//
|
//
|
////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////
|
//
|
//
|
// Copyright (C) 2015-2016, Gisselquist Technology, LLC
|
// Copyright (C) 2015-2017, Gisselquist Technology, LLC
|
//
|
//
|
// This program is free software (firmware): you can redistribute it and/or
|
// This program is free software (firmware): you can redistribute it and/or
|
// modify it under the terms of the GNU General Public License as published
|
// modify it under the terms of the GNU General Public License as published
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
// your option) any later version.
|
// your option) any later version.
|
| Line 50... |
Line 50... |
#include "board.h"
|
#include "board.h"
|
|
|
const char msg[] = "Hello, world!\r\n";
|
const char msg[] = "Hello, world!\r\n";
|
|
|
void entry(void) {
|
void entry(void) {
|
register IOSPACE *sys = (IOSPACE *)IOADDR;
|
volatile IOSPACE *const sys = (IOSPACE *)IOADDR;
|
int ledset = 0;
|
int ledset = 0;
|
|
|
sys->io_spio = 0x0f0;
|
sys->io_spio = 0x0f0;
|
|
|
/// Turn off timer B
|
/// Turn off timer B
|
sys->io_timb = 0;
|
sys->io_watchdog = 0;
|
|
|
while(1) {
|
while(1) {
|
const char *ptr;
|
const char *ptr;
|
sys->io_tima = TM_ONE_SECOND; // Ticks per second, 80M
|
sys->io_timer = TM_ONE_SECOND; // Ticks per second, 80M
|
sys->io_pic = 0x07fffffff; // Acknowledge and turn off all ints
|
sys->io_pic = 0x07fffffff; // Acknowledge and turn off all ints
|
|
|
ptr = msg;
|
ptr = msg;
|
while(*ptr) {
|
while(*ptr) {
|
|
unsigned iv = *(unsigned char *)ptr++;
|
|
|
// Wait while our transmitter is busy
|
// Wait while our transmitter is busy
|
while((sys->io_pic & INT_UARTTX)==0)
|
while((sys->io_pic & INT_UARTTX)==0)
|
;
|
;
|
sys->io_uart = *ptr++; // Transmit our character
|
sys->io_uart = iv; // Transmit our character
|
sys->io_pic = INT_UARTTX; // Clear the int flag
|
sys->io_pic = INT_UARTTX; // Clear the int flag
|
}
|
}
|
|
|
// Now, wait for the top of the second
|
// Now, wait for the top of the second
|
while((sys->io_pic & INT_TIMA)==0)
|
while((sys->io_pic & INT_TIMER)==0)
|
;
|
;
|
|
|
ledset <<= 1;
|
ledset <<= 1;
|
ledset &= 15;
|
ledset &= 15;
|
if (ledset == 0)
|
if (ledset == 0)
|
