Se encontraron 5 coincidencias
- 21 May 2018, 01:38
- Foro: Preguntas y peticiones / Questions and requests
- Tema: Memory problems with ZX Uno.
- Respuestas: 4
- Vistas: 4735
Re: Memory problems with ZX Uno.
My ZX Uno is working 100% now, thanks for the help. I’ve replaced the IDT SRAM with an ISSI SRAM.
- 15 May 2018, 10:18
- Foro: Preguntas y peticiones / Questions and requests
- Tema: Memory problems with ZX Uno.
- Respuestas: 4
- Vistas: 4735
Re: Memory problems with ZX Uno.
I have ordered some ISSI 512KB SRAM chips, so I'm going to replace the IDT chip. I've tested the T24 core and it has even worse results, so I guess the IDT chip is not quite compatible with the ZX Uno. The ones I've ordered are IS61L5128AL-10TLI, so that means 512KBx8, 10ns and 3,3 volt supply volta...
- 14 May 2018, 23:05
- Foro: Preguntas y peticiones / Questions and requests
- Tema: Memory problems with ZX Uno.
- Respuestas: 4
- Vistas: 4735
Memory problems with ZX Uno.
Hello There, I've built a ZX Uno 4.1 from scratch and at the first test the FPGA was found and I could program the SPI flash and run some cores on it. So far so good, the problem is with the memory. I have soldered a IDT SRAM chip, type 71V424S10PHG. When powering up my ZX Uno it says 512K Ok, when ...
- 09 Abr 2018, 22:54
- Foro: Tecnología
- Tema: Magnetic Beads...
- Respuestas: 2
- Vistas: 4333
Re: Magnetic Beads...
I found ferrite beads at AliExpress, they are high current and the right value. I did had to order a whole bunch of them, but let’s say they were dirt cheap .
- 06 Abr 2018, 15:41
- Foro: Tecnología
- Tema: Magnetic Beads...
- Respuestas: 2
- Vistas: 4333
Magnetic Beads...
Hello There, I want to build a ZX Uno myself and I have studied the BOM on the site. I can get most of the components at Digikey and for the components that are now obsolete at Digikey I have found alternatives. But, what I can't find are the SMD 0805 1K 3A magnetic beads. These are, correct me if I...