Zx-Uno VGA 2M
Re: Zx-Uno VGA 2M
First, review the pads solders, the ones that I have indicated in this image.
The SRAM is U3, but it does not have to fail, it can be a fault in the solders, if you are sure it is well solded then you must replace U3.
The SRAM is U3, but it does not have to fail, it can be a fault in the solders, if you are sure it is well solded then you must replace U3.
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Re: Zx-Uno VGA 2M
I improved February on IS61WV20488BLL and now I have such a screen
is this error caused by W25Q128 ?
is this error caused by W25Q128 ?
Re: Zx-Uno VGA 2M
Yes, should give OK even if it is not flashed.
Re: Zx-Uno VGA 2M
What should the U2 system be? because I used W25Q128FVSSIG, is this the correct layout?
Re: Zx-Uno VGA 2M
Yes is the correct.
Re: Zx-Uno VGA 2M
I have replaced it with the new 25Q128FVSG and it is still the same error, what can I check?
Re: Zx-Uno VGA 2M
rework the welds in the FPGA
Re: Zx-Uno VGA 2M
Thanks for the hint, but during the soldering I damaged the FPGA now I have to order a new one and this will take a while.