[ts-7000] test TS7300 DIO1 Header

["suptouch" <>]

I've made a small program to test the i/o of the DIO1 header on my
TS7300 on output mode. I generate a 0.5Hz signal on each port, and the
result is :

Pin 1  : DIO_0 (PortB.0) : no signal
Pin 3  : DIO_1 (PortB.1) : no signal
Pin 5  : DIO_8 (PortF.1) : signal ok
Pin 7  : DIO_3 (PortB.3) : no signal
Pin 9  : DIO_4 (PortB.4) : no signal
Pin 11 : DIO_5 (PortB.5) : signal ok
Pin 13 : DIO_6 (PortB.6) : signal ok
Pin 15 : DIO_7 (PortB.7) : signal ok

Pin 2  : gnd
Pin 4  : EXT_RESET
Pin 6  : SPI_frame
Pin 8  : ADC4
Pin 10 : SPI_miso
Pin 12 : SPI_mosi
Pin 14 : SPI_clk
Pin 16 : +3.3V

Why the DIO_1, DIO_3 and DIO_4 doesn't work in output ?

This is my test program :

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

int main(int argc, char ** argv)
{
        volatile unsigned int * PBDR, *PBDDR, *PEDDR, *PEDR,
                          *PFDDR,*PFDR,*PCDDR,*PCDR;

        unsigned char * start;
        
        int fd = open("/dev/mem", O_RDWR);
        start = mmap(0, getpagesize(), PROT_READ|PROT_WRITE, 
                MAP_SHARED, fd,0x80840000);
        
        PBDR = (unsigned int * ) (start + 0x04);
        PBDDR = (unsigned int * ) (start + 0x14);
        PEDR = (unsigned int * ) (start + 0x20);
        PEDDR = (unsigned int * ) (start + 0x24);
        PFDR = (unsigned int * ) (start + 0x30);
        PFDDR = (unsigned int * ) (start + 0x34);
        PCDR = (unsigned int * ) (start + 0x08);
        PCDDR = (unsigned int * ) (start + 0x18);

        *PBDDR = 0xFF; // all output
        *PEDDR = 0xFF; // all output
        *PCDDR = 0xFF; // all output
        *PFDDR = 0xFF; // all output            
        
        while(1)
        {
                *PBDR = 0xFF; // all à 1
                *PEDR = 0xFF; // all à 1
                *PCDR = 0xFF; // all à 1                
                *PFDR = 0xFF; // all à 1
                sleep(1);
                *PBDR = 0x00; // all à 0
                *PEDR = 0x00; // all à 0
                *PCDR = 0x00; // all à 0
                *PFDR = 0x00; // all à 0
                sleep(1);
        }
}











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