ZONA DE PRUEBAS

Hi, I send you file of zx spectrum clone for VGA-MOD board. This is the new one, now I use resistor 3 bits for RGB signal. Also PS2 on board does not connect to any pin, you need to connect to the fpga pin as in the UCF file. You can get file from here. https://skydrive.live.com/?lc=1033#cid=3AC8559...

If XC95144XL is $1 (or even $7), this option is cheap and use less pcb. solder is not too difficult.

Yes, there is no plcc package for XC95144XL but 100pin plcc is very big
$1 is cheap, I buy it in US for $7.

The atmega16 in Speccy2007 use 14MHz, it doesn't need 40Mhz because it use A0 from Z80 to decode.

What you mean about ram 62256 in another post?

Yes, I have source of zxmmc, it need 36 macrocells.
For PS2, if you use source from Mecleod, it needs 80 macrocells and no need microcontroller.
So both ZXMMC and PS2 can fit into XC95144XL.

Check Speccy2007 project, it use ATMEGA16 for both SD card and PS2.

That PS2 project use 52 macrocells, only 20 macrocells left so so it is not enough to put ZXMMC.

antoniovillena escribió:@superfo. Good news, jepalza do the paging tests and it works.


In both modes, Sinclair and Amstrad, are OK.

Great! now only make CF work.

## Have you changed the jumpers J13 Between the tests?

Yes, I changed the jumper.
Maybe it relate to the border problem.

Here is my RAM test for Sinclair mode



And this is for Amstrad mode