[ts-7000] Re: How to access IO pins????

["gpimentel074" <>]

OK.

I made some tests after posted the message and now i'm able to change
the green led state by changing the E0 register on GPIO. :)
But i try to do the same thing with the DIO12 pin locate on B12
register on GPIO without success :(

Here is my code made now in C code

#include <stdio.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

volatile unsigned int *PADR, *PADDR;
volatile unsigned int *PBDR, *PBDDR;
volatile unsigned int *PCDR, *PCDDR;
volatile unsigned int *PDDR, *PDDDR;
volatile unsigned int *PEDR, *PEDDR;
volatile unsigned int *PFDR, *PFDDR;
volatile unsigned int *PGDR, *PGDDR;
volatile unsigned int *PHDR, *PHDDR;
volatile unsigned int *GPIOADB, *GPIOBDB, *GPIOFDB;

void GPIO_SETUP(void)
{
   unsigned char *start;
   int fd = open("/dev/mem", O_RDWR);
   start = mmap(0, getpagesize(), PROT_READ|PROT_WRITE, MAP_SHARED,
fd, 0x80840000);

   //GPIO registers

   //Port Data Registers Address
     PADR = (unsigned int *)(start + 0x00); //Port A
     PBDR = (unsigned int *)(start + 0x04); //Port B
     PCDR = (unsigned int *)(start + 0x08); //Port C
     PDDR = (unsigned int *)(start + 0x0C); //Port D
     PEDR = (unsigned int *)(start + 0x20); //Port E
     PFDR = (unsigned int *)(start + 0x30); //Port F
     PGDR = (unsigned int *)(start + 0x38); //Port G
     PHDR = (unsigned int *)(start + 0x40); //Port H

   //Port Direction Registers Address
     PADDR = (unsigned int *)(start + 0x10); //Port A
     PBDDR = (unsigned int *)(start + 0x14); //Port B
     PCDDR = (unsigned int *)(start + 0x18); //Port C
     PDDDR = (unsigned int *)(start + 0x1C); //Port D
     PEDDR = (unsigned int *)(start + 0x24); //Port E
     PFDDR = (unsigned int *)(start + 0x34); //Port F
     PGDDR = (unsigned int *)(start + 0x3C); //Port G
     PHDDR = (unsigned int *)(start + 0x44); //Port H

   //Port Debounce Registers Address
     GPIOADB = (unsigned int *)(start + 0xA8); //Port A
     GPIOBDB = (unsigned int *)(start + 0xC4); //Port B
     GPIOFDB = (unsigned int *)(start + 0x64); //Port F
 
   //Setting Input/Output Pin Port (0-Input, 1-Output)
     //*PADDR = 0xFF; // Setting all pins as output
     *PBDDR = *PBDDR | 0xF0; // Setting DIO15, DIO14, DIO13, DIO12
pins as output only
     //*PCDDR = 0xFF; // Setting all pins as output
     //*PDDDR = 0xFF; // Setting all pins as output
       *PEDDR = 0xFF; // Setting all pins as output
     //*PFDDR = 0xFF; // Setting all pins as output
     //*PGDDR = 0xFF; // Setting all pins as output
     //*PHDDR = 0xFF; // Setting all pins as output

     //Setting Debounce Pin Port (0-Disable, 1-Enable)
       //*GPIOADB = 0x00; //Port A
       //*GPIOBDB = 0x00; //Port B
       //*GPIOFDB = 0x00; //Port C

     close(fd);
}

int main(void)
{
     int i;
     printf("Is gone start!\n");

     GPIO_SETUP();

     for(i=0;i<25;i++){
        if((*PEDR & 0x01)==0)
        {
           printf("State OFF\n");
           *PEDR = (*PEDR | 0x01); //Green Led ON
           *PBDR = (*PBDR | 0x10); //DIO12 equal to 3.3V or High Level
        }else{
           printf("State ON\n");
           *PEDR = (*PEDR & 0xFE); //Green Led OFF
           *PBDR = (*PBDR & 0xEF); //DIO12 equal to 0V or Low Level
        }
        sleep(1);
     }

     printf("It has finish!\n");
     return 0;
}




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