Rob B
Full Member level 4
nexys2
With the most simple Verilog and ISE I can use LEDs 0 to 5 (Balls J14, J15, K15, K14, E17 and P15 respectively on the board).
LEDs 6 and 7 are a different matter (F4 and R4 respectively). I can not get the most basic code to illuminate them although the demo software (VHDL) built on my ISE works, it assigns slide switch values to them.
They are on Bank 3 of the device while the rest are on Bank 1 but that is one of the only differences I can see apart from they share some ball allocations with other footprints. I think the PACE tool takes care of that though as it wouldn't let me assign the alternative ball locations to the nets (I have the correct device selected).
They are all common Cathode according to the schematic .
Any ideas appreciated.
With the most simple Verilog and ISE I can use LEDs 0 to 5 (Balls J14, J15, K15, K14, E17 and P15 respectively on the board).
LEDs 6 and 7 are a different matter (F4 and R4 respectively). I can not get the most basic code to illuminate them although the demo software (VHDL) built on my ISE works, it assigns slide switch values to them.
They are on Bank 3 of the device while the rest are on Bank 1 but that is one of the only differences I can see apart from they share some ball allocations with other footprints. I think the PACE tool takes care of that though as it wouldn't let me assign the alternative ball locations to the nets (I have the correct device selected).
They are all common Cathode according to the schematic .
Any ideas appreciated.