GC5316 jtag

Hello,

The GC5316 ver 0.3 BSDL file is attached.  The JTAG tests do not support internal scan, that is all that is listed

in the data sheet.  Our parts typically have a unique ID code. 

Regards,

Radio Joe.

Radio-Joe said:

Hello,

 

The GC5316 ver 0.3 BSDL file is attached.  The JTAG tests do not support internal scan, that is all that is listed

in the data sheet.  Our parts typically have a unique ID code. 

Regards,

Radio Joe.

Hello,

It is not a bsdl file... it's ibis model file...

Ok, i looked into the file, but there is "GC5317" chip... Are you shure this is GC5316 bsdl file?

Also there is no IDCODE instruction defined. Does the chip support IDCODE?

So, there is no answer from designers, am i right?

I am using GC101 evo board with gc5316 daughtercard and cannot see 5316 chip in the jtag chain. How to make it work? All power's are ok.

Hello Joe!

W2 and W3 jumpers are set correctly, (1-2), i found it from schematics. I will check JTAG-TRSTB bit.

Upd:

1) I power on the board, try to scan chain - doesn't work;

2) Then i connect with Studio, build and load project - scan chain doesn't work

3) I _read_ JTAG-TRSTB - it is set to 4096. And only after this read device appears in scan chain! Not write, just read :)

Yeah! The Device is working properly at last!

One question left: what does this MPU address 0x40, bit 12?

UPD: it drives C12 -> TRST_N  high through U12 registers, right?

and trigger didn't get clk edge after powerup, so C12 not driven high until any transaction, althoug in fpga registers it has "high"...