TNT4882 - finding it from MAX

[D521]

I wrote and read to cnt0 and cnt1 as you asked and it seems great. I ran it in a continueous loop and even put in code to verify the read matches the write and let it continuously run in a loop. I've even checked the signals to see that I'm really writing and reading continueously so we know there are no bugs. It seems OK.

[Collin M]

I don't know what else to check.

I think a logic analyzer would reveal the problem. I still think that the cycles between the TNT and DSP are not correct.

Could the previous problem you found in the assembly code be causing problems elsewhere?

[D521]

I'm positive the problem is not a bug or anything like I had before. If I went down to details and explain to you the problem that I had in the code you would understand why I'm confident that I can be positive that I don't have this problem anywhere else.

I'll have to do more test here to see if I can find anything else. maybee I'll try to see if I can receive data when I'm at my current address of 0. maybee that will give us more clues regarding the sucess of the initialization, and writing and reading to registers.

[D521]

dittohead,

OK, I've got it! just wanted to let you know I have found the problem. Paged signal was left floating on my board. it should be as I understand now grounded, otherwise certain registers appear at different offsets.
I've not gotten to the point that I can load the address into ADR0 and find the TNT4882 from MAX at the correct address of 3.
This particular issue now seems to be closed for me, I will now go on to try to receive data and send data.

Thanks for all of your help.

[Collin M]

Glad to hear you have it working.