Chip Tester de 8bit-museum.de - Reloaded

[geloalex]

Great idea. Looks really good.

Thanks Slabbi

What have you used instead of the RE-COM? Have you used SMD LEDs or 3mm ones?

RE-COM in FARNELL was out of stock to next january ´21 , i looked the data sheet and change it for a mini DC-DC converter , that do the same (+5v Input to +12 -12 Output)
The leds are through hole but mini. i have this leds from other projects , are small and hi bright.

Leds and DcDc converter






This regulator to pass from 7,2v from lipos to 5v directly to USB holes.

From which ROM is the CRC32? Is it worth to add it in the internal database?

The read from eprom 27256 are a RAM TEST rom for test Amstrad CPC

[slabbi]

How smooth is the output of the DC/DC 12/-12V module?
Usually these modules need some capacitors to provide a smooth output voltage.
I have some on the module PCB, so it should be fine but it would be good to know.

Maybe I can add this as an alternative on the DC/DC module PCB.

[slabbi]

From which ROM is the CRC32? Is it worth to add it in the internal database?

The read from eprom 27256 are a RAM TEST rom for test Amstrad CPC

Maybe a tip for all since not all user know for what a CRC32 is used for:

When you install 7-zip, it installs a tool in the context menu of the Windows Explorer called "CRC SHA".
When you right click on a binary file that contains ROM content, e.g. ROM27256.BIN, you can select "CRC SHA"->CRC32 and compare this value with the value the Chip Tester gives you. When the values are equal the content of the EPROM/ROM is fine.

Or can also do a ROM dump on SD card and compare both files doing a binary compare. The other way is faster and you can collect the CRC32 in an customcrc32.txt file so the next time the Tester gives you not a CRC32 value but the content.

[geloalex]

This is the module if you want to try it
€ 2,58 20％ dto. | +- 5V 6V 9V 12V 15V 24V fuente de alimentación de salida Dual positiva y negativa DC Step-up impulsar el módulo convertidor
https://a.aliexpress.com/_mPzPKrT


Enviado desde mi iPhone utilizando Tapatalk

[slabbi]

This is the module if you want to try it
€ 2,58 20％ dto. | +- 5V 6V 9V 12V 15V 24V fuente de alimentación de salida Dual positiva y negativa DC Step-up impulsar el módulo convertidor
https://a.aliexpress.com/_mPzPKrT
Enviado desde mi iPhone utilizando Tapatalk

Thanks, I ordered some of those. Maybe these are a cheap option to replace the RE-COM.

[geloalex]

Be carefull !! The pinout isn’t the same.

[slabbi]

I have a small request:
Could you please tell me with which programming devices you successfully or unsuccessfully flashed?

I would like to expand the list a little:

The following programmers are tried and tested and can program an ATmega2560 without errors:
• Diamex USB ISP-Programmer for AVR, STM32, LPC-Cortex (Prog-S2) (Item nr.102106), approx. 20 Euro
• Diamex USB ISP-Programmer for Atmel AVR (Item nr.102104), approx. 18 Euro
• Tremex USB ISP-Programmer, approx. 20 Euro
• Pololu USB AVR Programmer, approx. 20 Euro
• Pololu USB AVR Programmer v2.1, approx. 12 Euro
• mySmartUSB MK2, approx. 30 Euro
• mySmartUSB MK3, approx. 40 Euro
• Atmel ICE, approx. 120 Euro

Feedback that there were problems or the programming did not work:
• USBASP (different Models), approx. 10 Euro
• Bus Pirate. approx. 25 Euro
• Diamex USB ISP-Programmer Stick for AVR (Item nr. 102108), approx. 18 Euro

[geloalex]

Hi slabbi
My first choice was a USBAVR but I had problems with it.
Then buy a https: //www.diamex.de/dxshop/DIAMEX-USB-ISP-Pro ... k-fuer-AVR and burn the AVR smoothly the first time.
User Valfac had the same problem and bought a Diamex like mine ..... no problems to burn and fully operational.

[papanillu]

I bought this
Diamex USB ISP-Programmer for AVR, STM32, LPC-Cortex (Prog-S2) (Item nr.102106), approx. 20 Euro
and eveything is fine

[slabbi]

Many thanks to @papanillu who sent me the QL roms for further testing.

I can also confirm that these (and other ROM types) are working flawlessly now.