Difference between revisions of "TS-8100 DIO header"

From Technologic Systems Manuals
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This header is designed to connect to the [[KPAD]] accessory which uses the odd DIO on this header to scan a 4x4 keypad.  This example scans the [[KPAD]] and prints out the pressed character.  This requires a running tsctl server, and a libtsctl source directory on the board to compile:
 
<source lang=c>
 
/* KPAD 4x4 keypad example code
 
*
 
* To compile, copy to the libtsctl directory and run:
 
* gcc kpad.c -Inet -Its -I . -o kpad        */
 
 
#include <stdio.h>
 
#include <stdint.h>
 
#include <unistd.h>
 
 
#include "nettsctl.h"
 
 
int main()
 
{
 
int row, col, i, dio_blk[8];
 
tsctl *conn;
 
DIO *dio;
 
System *sys;
 
 
char *keys[4][4] = {
 
{ "1", "2", "3", "UP" },
 
{ "4", "5", "6", "DOWN" },
 
{ "7", "8", "9", "2ND" },
 
{ "CLEAR", "0", "HELP", "ENTER" }
 
};
 
 
conn = TsctlClient("127.0.0.1",NetModeBlocking);
 
if (!conn) {
 
perror("Couldn't connect to TSCTL server");
 
return 1;
 
}
 
dio = NetDIOInit(conn, 0);
 
sys = NetSystemInit(conn, 0);
 
if(sys->BaseBoardId(sys) != 0x8100) {
 
fprintf(stderr, "Wrong Baseboard.\n");
 
return 1;
 
}
 
 
// Lookup DIO (odds) 1-15 on the TS-8100
 
for(i = 0; i < 8; i++) {
 
char nm[13];
 
snprintf(nm, 12, "8100_DIO_%d", (i*2)+1);
 
dio_blk[i] = sys->MapLookup(sys, ASCIIZ(nm));
 
// Set first 4 as outputs, last 4 as inputs
 
if(i < 4)
 
dio->SetAsync(dio, dio_blk[i], HIGH);
 
else
 
dio->SetAsync(dio, dio_blk[i], INPUT);
 
}
 
 
while(1) {
 
for(row = 0; row < 4; row++) {
 
dio->SetAsync(dio, dio_blk[row], LOW);
 
usleep(1000);
 
for(col = 4; col < 8; col++) {
 
if(dio->GetAsync(dio, dio_blk[col]) == INPUT_LOW) {
 
usleep(80000);
 
if(dio->GetAsync(dio, dio_blk[col]) == INPUT_LOW) {
 
printf("%s ", keys[row][col - 4]);
 
fflush(stdout);
 
}
 
}
 
}
 
dio->SetAsync(dio, dio_blk[row], HIGH);
 
}
 
}
 
 
return 0;
 
}
 
</source>
 
 
If you receive a "socket error", see the [[#tsctl|tsctl]] chapter for information on setting up and running the tsctl server.
 

Revision as of 11:10, 5 June 2013

The TS-8100 includes a 2x8 0.1" pitch header with 8 DIO, I2C, and SPI. Most DIO on this header are rated for 3.3V and are not tolerant of 5V IO. The only exception is SPI_MOSI which is 5V tolerant. The DIO on this baseboard can be accessed by manipulating the TS-8100 Register Map, or using tsctl.

Pinout Header
Pin Name Notes
1 8100_DIO_1 Pulled high by R124
2 Ground
3 8100_DIO_3 Pulled high by R123
4 I2C_CLK
5 8100_DIO_5 Pulled high by R122
6 SPI_CS
7 8100_DIO_7 pulled high by R121
8 I2C_DAT
9 8100_DIO_9 Pulled high by R120
10 SPI_MISO
11 8100_DIO_11 Pulled high by R119
12 SPI_MOSI
13 8100_DIO_13 Pulled high by R118
14 SPI_CLK
15 8100_DIO_15 Pulled high by R117
16 CPU_3.3V

TS-8100-DIO.png