IRB Questions?

[HiMx96]

Hello Everyone,

My partner and I are currently trying to use the IRB device to
recognize pictures. I need to read what the IRB is recognizing and
output it through a LED display.

I have read through the CM IR datasheets and I understand that to get
access through port J2 which is a way to program the FPGA you'd need
the software from Actel and the JTAG cable but how would I gain access
on the information from port J7 which is just a general I/O?

To anyone who can answer my question, thank you.
And if anyone could give me advice on this project thank you too.

-Darnel

[Anne Menendez]

Darnel,

If you have version 1.4 of the firmware or later, you can use the register
EB_CSR (0x20, bit [11:9]) to enable the I/O lines and their output format
(decimal, binary, and even 7-segment). You can find the firmware version
under the diagnostics utility, or by reading the register EB_Version (0x22,
I believe). If you want to customize the output to the I/O lines, you can
start from the source code of the default HDL which Recognetics supplies
since the release of the firmware 1.4. The HDL includes minimum comments for
each module instantiation and state machine.

Hope this helps,
Anne