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169 lines
5.1 KiB
C
169 lines
5.1 KiB
C
// --------------------------------------------------------------------------
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// Sym-1 digital I/O interface example
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//
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// Wayne Parham
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//
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// wayne@parhamdata.com
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// --------------------------------------------------------------------------
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#include <sym1.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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void main(void) {
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unsigned char ddr1a = 0x00;
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unsigned char ior1a = 0x00;
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unsigned char ddr1b = 0x00;
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unsigned char ior1b = 0x00;
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unsigned char ddr2a = 0x00;
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unsigned char ior2a = 0x00;
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unsigned char ddr2b = 0x00;
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unsigned char ior2b = 0x00;
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unsigned char ddr3a = 0x00;
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unsigned char ior3a = 0x00;
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unsigned char ddr3b = 0x00;
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unsigned char ior3b = 0x00;
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unsigned char val = 0x00;
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int going = 0x01;
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int instr = 0x01;
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int l = 0x00;
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char* vp = 0x00;
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char cmd[20] = { 0x00 };
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while( going ) {
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putchar( '\r' );
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for( l = 0; l < 25; l++ ) {
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putchar( '\n' );
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}
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ddr1a = VIA1.ddra;
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ior1a = VIA1.pra;
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ddr1b = VIA1.ddrb;
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ior1b = VIA1.prb;
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ddr2a = VIA2.ddra;
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ior2a = VIA2.pra;
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ddr2b = VIA2.ddrb;
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ior2b = VIA2.prb;
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ddr3a = VIA3.ddra;
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ior3a = VIA3.pra;
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ddr3b = VIA3.ddrb;
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ior3b = VIA3.prb;
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puts( "================== Digital I/O Status ==================" );
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puts( " Port1A Port1B Port2A Port2B Port3A Port3B" );
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printf( "DDR %02X %02X %02X %02X %02X %02X\n\r",ddr1a,ddr1b,ddr2a,ddr2b,ddr3a,ddr3b );
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printf( "IOR %02X %02X %02X %02X %02X %02X\n\r",ior1a,ior1b,ior2a,ior2b,ior3a,ior3b );
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puts( "========================================================\n" );
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if( instr ) {
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puts( "You can set any register by typing 'register value' so" );
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puts( "as an example, to set register IOR2A with the top five" );
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puts( "bits off and the bottom three on, type 'IOR2A 07'." );
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puts( "Press ENTER without any command to see register values" );
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puts( "without changing any of them. Type 'help' to see these" );
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puts( "instructions again and type 'quit' to end the program.\n");
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puts( "Available registers: DDR1A, IOR1A, DDR1B, IOR1B, DDR2A" );
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puts( "IOR2A, DDR2B, IOR2B, DDR3A, IOR3A, DDR3B and IOR3B." );
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instr = 0;
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}
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printf( "\n Command: " );
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fgets(cmd, sizeof(cmd)-1, stdin);
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cmd[strlen(cmd)-1] = '\0';
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if( strncasecmp(cmd, "quit", 4) == 0) {
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going = 0;
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}
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else if( strncasecmp(cmd, "help", 4) == 0) {
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instr = 1;
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}
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else if( strncasecmp(cmd, "ddr1a", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA1.ddra = val;
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}
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}
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else if( strncasecmp(cmd, "ior1a", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA1.pra = val;
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}
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}
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else if( strncasecmp(cmd, "ddr1b", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA1.ddrb = val;
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}
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}
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else if( strncasecmp(cmd, "ior1b", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA1.prb = val;
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}
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}
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else if( strncasecmp(cmd, "ddr2a", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA2.ddra = val;
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}
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}
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else if( strncasecmp(cmd, "ior2a", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA2.pra = val;
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}
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}
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else if( strncasecmp(cmd, "ddr2b", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA2.ddrb = val;
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}
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}
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else if( strncasecmp(cmd, "ior2b", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA2.prb = val;
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}
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}
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else if( strncasecmp(cmd, "ddr3a", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA3.ddra = val;
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}
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}
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else if( strncasecmp(cmd, "ior3a", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA3.pra = val;
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}
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}
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else if( strncasecmp(cmd, "ddr3b", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA3.ddrb = val;
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}
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}
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else if( strncasecmp(cmd, "ior3b", 5) == 0) {
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vp = strchr(cmd, ' ');
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if( vp ) {
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val = (unsigned char) strtol( vp, NULL, 0 );
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VIA3.prb = val;
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}
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}
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}
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}
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