Re: [ts-7000] [ts 7200] DIO Code

["Giulio D'Aversa" <>]

On Sun, Nov 14, 2010 at 3:56 PM, Joel Morgan <> wrote:

 

Hi Alba,
looks ok but I dont think its doing what you want. See below.

On 11/14/10, Giulio D'Aversa <eolone%40gmail.com> wrote:

>> unsigned char *start;
>> int fd = open("/dev/mem", O_RDWR);
>>
>> // TRACE(printf("DIO_SETUP()\n"));
>> start = mmap(0, getpagesize(), PROT_READ|PROT_WRITE, MAP_SHARED, fd,
>> 0x80840000);
>> // DIO registers
>> PBDR = (unsigned int *)(start + 0x04); // port b
>> PBDDR = (unsigned int *)(start + 0x14); // port b direction register
>> PEDR = (unsigned int *)(start + 0x20); // port e data
>> PEDDR = (unsigned int *)(start + 0x24); // port e direction register
>> GPIOBDB = (unsigned int *)(start + 0xC4); // debounce on port b
>> GEN_DBG_PRT_DEBUG_FL("ok1\n");
>> fflush(NULL);
>> *PBDDR =0xFF;

Port B is all outputs.

>> *PBDR=0x01; // upper nibble output,

You turn on bit 0

>> *GPIOBDB = 0x01; // enable debounce on bit 0

why debounce an output?

 

I found this  on the web and I forgot to remove the GPIOBDB line.
The point is that the code doesn't run..the bash shell write something weird and ":not found" for the first 2 lines
and something else like "sintax errounexpected  '(' "

here the screen
http://img138.imageshack.us/img138/8190/22541950.jpg

Alba

>> GEN_DBG_PRT_DEBUG_FL("ok2\n");
>> fflush(NULL);
>>
>> // *PEDDR = 255; // all output (just 2 bits)
>> close(fd);
>> //}
>>
>> }

--
Joel R. Morgan
Morgan Millwright Services, Inc.
Linux User #504110 http://counter.li.org/

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