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Line 10... |
// Creator: Dan Gisselquist, Ph.D.
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Technology, LLC
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// Gisselquist Technology, LLC
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Copyright (C) 2015-2016, Gisselquist Technology, LLC
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// Copyright (C) 2015-2017, Gisselquist Technology, LLC
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//
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//
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// This program is free software (firmware): you can redistribute it and/or
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// modify it under the terms of the GNU General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or (at
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// by the Free Software Foundation, either version 3 of the License, or (at
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// your option) any later version.
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// your option) any later version.
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#include "samples.c"
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#include "samples.c"
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const char msg[] = "Doorbell!\r\n\r\n";
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const char msg[] = "Doorbell!\r\n\r\n";
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void entry(void) {
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void entry(void) {
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register IOSPACE *sys = (IOSPACE *)0x0100;
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register volatile IOSPACE *const sys = _sys;
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sys->io_timb = 0;
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sys->io_watchdog = 0;
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sys->io_pic = 0x07fffffff; // Acknowledge and turn off all interrupts
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sys->io_pic = 0x07fffffff; // Acknowledge and turn off all interrupts
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sys->io_spio = 0x0f4;
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sys->io_spio = 0x0f4;
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sys->io_pwm_audio = 0x0110000;
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sys->io_pwm_audio = 0x0110000;
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while(1) {
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while(1) {
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int seconds = 0, pic;
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int seconds = 0, pic;
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const int *ptr;
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const unsigned short *ptr;
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const char *mptr = msg;
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const char *mptr = msg;
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sys->io_tima = TM_ONE_SECOND | TM_REPEAT; // Ticks per second, 80M
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sys->io_timer = TM_ONE_SECOND | TM_REPEAT; // Ticks per second, 80M
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sys->io_spio = 0x0f0;
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sys->io_spio = 0x0f0;
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ptr = sound_data;
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ptr = (const unsigned short *)sound_data;
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sys->io_pwm_audio = 0x0310000;
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sys->io_pwm_audio = 0x0310000;
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if (ptr == sound_data)
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sys->io_spio = 0x0f1;
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sys->io_spio = 0x0f1;
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while(ptr < &sound_data[NSAMPLE_WORDS]) {
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while(ptr <(const unsigned short *)&sound_data[NSAMPLE_WORDS]) {
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unsigned this_sample;
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sys->io_spio = 0x022;
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sys->io_spio = 0x022;
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do {
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do {
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pic = sys->io_pic;
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pic = sys->io_pic;
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if (pic & INT_TIMA)
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if (pic & INT_TIMER)
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seconds++;
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seconds++;
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if ((pic & INT_UARTTX)&&(*mptr))
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if ((pic & INT_UARTTX)&&(*mptr))
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sys->io_uart = *mptr++;
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sys->io_uart = *mptr++;
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sys->io_pic = (pic & 0x07fff);
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sys->io_pic = (pic & 0x07fff);
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} while((pic & INT_AUDIO)==0);
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} while((pic & INT_AUDIO)==0);
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sys->io_pwm_audio = (*ptr >> 16)&0x0ffff;
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this_sample = (*ptr++); // & 0x0ffff;
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sys->io_pwm_audio = this_sample;
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// Now, turn off the audio interrupt since it doesn't
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// Now, turn off the audio interrupt since it doesn't
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// reset itself ...
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// reset itself ...
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sys->io_pic = INT_AUDIO;
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sys->io_pic = INT_AUDIO;
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} if (ptr >= (const unsigned short *)&sound_data[NSAMPLE_WORDS])
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do {
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pic = sys->io_pic;
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if (pic & INT_TIMA)
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seconds++;
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if ((pic & INT_UARTTX)&&(*mptr))
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sys->io_uart = *mptr++;
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sys->io_pic = (pic & 0x07fff);
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} while((pic & INT_AUDIO)==0);
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sys->io_pwm_audio = (*ptr++) & 0x0ffff;
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// and turn off the audio interrupt again ...
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sys->io_pic = INT_AUDIO;
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} if (ptr >= &sound_data[NSAMPLE_WORDS])
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sys->io_spio = 0x044;
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sys->io_spio = 0x044;
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sys->io_spio = 0x088;
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sys->io_spio = 0x088;
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sys->io_pwm_audio = 0;
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sys->io_pwm_audio = 0;
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while(seconds < 10) {
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while(seconds < 10) {
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pic = sys->io_pic;
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pic = sys->io_pic;
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if (pic & INT_TIMA)
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if (pic & INT_TIMER)
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seconds++;
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seconds++;
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sys->io_pic = (pic & 0x07fff);
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sys->io_pic = (pic & 0x07fff);
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}
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}
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sys->io_spio = 0x0ff;
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sys->io_spio = 0x0ff;
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}
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}
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