[ts-7000] TS-7KV PLD Registers - simple code seg faults - ne suggestions

["mattsaintdev" <>]

Hi all,

Spotted the rewrite of the Getting Started with the TS-7KV manual and 
must say its much clearer now - thanks.

Wrote the following test program to learn how to read the PLD regs, 
but the only output is the first two printf lines. As soon as the 
code accesses the PLD_REGS i get a segfault.

Ne suggestions?

Matt



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


volatile unsigned char *pld_regs;



int main(int argc, char **argv)
{

   char base7;
   int mem_handle=open("/dev/mem", O_RDWR | O_SYNC);
   //
   // 0x11E0_0000 = PLD Register base address
   pld_regs=(unsigned char *)mmap(0, 0xFF , PROT_READ|PROT_WRITE, 
MAP_SHARED, mem_handle, 0x11E00000);
   //
   //
   //
   printf("TS-7KV Register settings probe \n");
   printf("------------------------------ \n\n");
   printf("BASE+0 Board ID #1 = %X (documented as 0x41)\n", pld_regs
[0xE0] );
   printf("BASE+1 Board ID #2 = %X (documented as 0x20)\n", pld_regs
[0xE1] );

   base7=pld_regs[0xE7];
   if (base7 & 0x80) printf("ADC option is installed\n");
   if (base7 & 0x40) printf("CAN option is installed\n");
   if (base7 & 0x20) printf("J5 Set\n");
   if (base7 & 0x10) printf("J4 Set\n");
   if (base7 & 0x08) printf("J3 Set\n");
   if (base7 & 0x04) printf("J2 Set\n");
   if (base7 & 0x02) printf("J1 Set\n");
   //
   //
   return 0;
}






 
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