| Author |
Topic |
|
|
rpizzo
24 Posts |
 Posted - 04 Apr 2007 : 00:26:31
|
Hi, Sorry to bring this up again...but I was trying a sample app from the forums that had initialized an array of 4 lines GPIO1-GPIO4 and had read and write methods to access. For example:
m_hEIO[0] = CreateFile(_T("GPI1:"), GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
The documentation however pretty much deals with EIO0 (not 1) etc..
Is EIO0 == GPIO1 ?
Simple question but I am trying to troubleshoot this circuit and all seems well in the signals but the code isn't seeing it.
Thanks in advance for any advice!
|
|
|
jjoseph
47 Posts |
Posted - 04 Apr 2007 : 10:14:52
|
Hi,
There is a GPIO cross reference in the BitsyX users manual section 4.1.6. The EIO0 signal is J10 pin 8, listed in section 3.3.9 of the manual. The Users manual can be found at Forum Topic 884. |
 |
|
|
rpizzo
24 Posts |
Posted - 05 Apr 2007 : 15:51:27
|
Thanks for the info. According to that table, the GPIO only goes from EIO0 - EIO3. How does my code access EIO4 and up? I've read the BitsyX manual and found the pinouts for these extra lines, just need to know how my program can read them.
|
|
|
|
jjoseph
47 Posts |
Posted - 05 Apr 2007 : 15:56:42
|
Hi,
The EIO values are sprinkled through the table. For EIO5-EIO8, take a look at GP 19-22 on page 21 of the BitsyX User's manual. |
|
|
|
rpizzo
24 Posts |
Posted - 07 Apr 2007 : 00:56:27
|
Getting warmer...can you provide me a code snippet to show how I can access those extra EIO lines? That would be a huge help!
|
|
|
|
jjoseph
47 Posts |
Posted - 09 Apr 2007 : 14:12:38
|
Ahh, now I see the problem. The sample app you were referencing has been deprecated. The sample app
here will allow you access to all the pins.
|
|
|
|
rpizzo
24 Posts |
Posted - 11 Apr 2007 : 21:15:12
|
| Thank you, I think this is going to work. Is the DIO driver going to be on my older BitsyX boards or is it somethjing I have to install? |
|
|
|
jjoseph
47 Posts |
Posted - 12 Apr 2007 : 09:50:33
|
| If you are using an older BitsyX and older OS, it is probably a good idea to upgrade your BitsyX to the latest Windows CE build. The build downloads and history can be found here. |
|
|
| |
Topic |
|
All Forums
Microsoft Windows CE
GPIO mapping to EIO lines
Forum Locked
Send Topic to a Friend
Printer Friendly