Zx-Uno VGA 2M

Proyectos ajenos al equipo oficial pero desarrollados o promovidos por la comunidad, relacionados con el ZX-UNO / Projects outside the official team but developed or promoted by the community, related to the ZX-UNO
ManuFerHi
Mensajes: 715
Registrado: 15 Nov 2015, 17:50

Re: Zx-Uno VGA 2M

Mensajepor ManuFerHi » 30 Mar 2018, 22:27

I´m always use a Xilinx cable with impact software or a SPI flash programmer before solder.
But recovery.bit use RGB signal, try press ScrolLock key to switch signal to VGA.
Yo can use also other .bit file for test board.
Adjuntos
tld_test_prod_2M.bit
(332.72 KiB) Descargado 28 veces

HanSolo
Mensajes: 7
Registrado: 27 Ene 2018, 19:04

Re: Zx-Uno VGA 2M

Mensajepor HanSolo » 30 Mar 2018, 23:12

Thank for your fast help.
I try this .bit, still no any image on display and no any reaction on keyboard.
The only difference is now after bit uploading SD card red led is on.

What else i can test or measure with this .bit file?
And what file i must write direct to flash with programmer - the same recovery.bit?
Adjuntos
fla.jpg

ManuFerHi
Mensajes: 715
Registrado: 15 Nov 2015, 17:50

Re: Zx-Uno VGA 2M

Mensajepor ManuFerHi » 30 Mar 2018, 23:36

Push on keyboard, the key 3 for VGA screen.
No sound ? this test flash red led and play sound (beep).

I´m use same recovery.bit but in RGB mode.

HanSolo
Mensajes: 7
Registrado: 27 Ene 2018, 19:04

Re: Zx-Uno VGA 2M

Mensajepor HanSolo » 31 Mar 2018, 16:25

I try again - no sound, and no reaction on keyboard. Keyboard itself is good - i test it on PC.

I suspect something may be wrong with oscillator. But i not sure. Unfortunately i cannot measure frequency. Next days i try replace it.

Can i flash memory by external programmer without desolder it?
Please tell me what file i must to use.

Also i try to check VGA out and i see some hi levles on RGB signals after upload is finished. If i made reset levels disappear. Unfortunately i cannot see signals because my scope don't show fast signals.

ManuFerHi
Mensajes: 715
Registrado: 15 Nov 2015, 17:50

Re: Zx-Uno VGA 2M

Mensajepor ManuFerHi » 01 Abr 2018, 11:48

HanSolo escribió:I try again - no sound, and no reaction on keyboard. Keyboard itself is good - i test it on PC.

I suspect something may be wrong with oscillator. But i not sure. Unfortunately i cannot measure frequency. Next days i try replace it.

Can i flash memory by external programmer without desolder it?
Please tell me what file i must to use.

Also i try to check VGA out and i see some hi levles on RGB signals after upload is finished. If i made reset levels disappear. Unfortunately i cannot see signals because my scope don't show fast signals.


Here you have a updated file of the complete flash.
https://github.com/ManuFerHi/ZXUNO_VGA_ ... /FLASH.ZX1

If the flash is soldered, you can only program it through the FPGA with the recovery. To program it with an external programmer it is necessary to desolder, but it is a very simple operation.

tank_uk
Mensajes: 1
Registrado: 09 Abr 2018, 17:29

Re: Zx-Uno VGA 2M

Mensajepor tank_uk » 09 Abr 2018, 19:04

Hola foro
lo siento por google translite
pero no me digas si el BIOS admite 0.73 flash w25q256?
empujar todos los núcleos famosos de alrededor de 100 piezas (junto con máquinas recreativas)

ManuFerHi
Mensajes: 715
Registrado: 15 Nov 2015, 17:50

Re: Zx-Uno VGA 2M

Mensajepor ManuFerHi » 09 Abr 2018, 20:35

tank_uk escribió:Hola foro
lo siento por google translite
pero no me digas si el BIOS admite 0.73 flash w25q256?
empujar todos los núcleos famosos de alrededor de 100 piezas (junto con máquinas recreativas)


Se puede colocar en la placa sin problema alguno, es fácil de soldar pero habría que hacer un firmware específico.


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