Hello,

I have got some problem with the Noice debugger using with t80 core.

I describe the problem briefly:

I tried to use the core on a SPARTAN-3E kit.

I use the DebugSystem.vhd top level modul. I wrote a simple
wrapper with a proper DCM based clock ( 3.125 MHz), reset and
connection to the rs232 connector (only tx and rx wire are used in this
board).

First I wrote a little program in C for the z80 (i am using SDCC). Generated
a hex file and I have converted it to a vhd rom file by using hex2rom



The synthesis (Xilinx xst ) and implementation a programmed the fpga and
it worked well.

after that I wrote another test (in SDCC) code to check the serial
connection... it worked properly too...

so far everything is OK.

I wanted to use noice debugger. I got the noice monitor asm code for z80
provided by the noice debugger (I have changed the base address for the
UART). I used the PseudoSam assembler for making the hex file. After that I
converted to a vhd rom file with hex2rom.
Here I got the first warning:
(what does it mean exactly? it is serious?) I made the bit file, configured the FPGA and I try to communicate with NoIce. No response at all... I have tried to debug with modelsim and chipscope too but there was no advance. It seems there is error in the program ( or I have made some serious mistake) because the chipscope and the modelsim show that the processor runs but after init at the uart receiving routin it gets into an endless loop. Sum: processor works short C code works rs232 works --- monz80.asm, NoIce Communication -- doesnt work I suspect there is something wrong with the asm code or with the PseudoSam (I do some mistake but i dont know what). I use the configuration given by the Debugsystem.vhd... nothing changed. Should I use another assembler (I dont have other) ? Could anybody help me please ?? Thank You in advance ' T. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.opencores.org/forums.cgi/cores/attachments/20090122/02b4104e/attachment.html