dtomcat Posted March 5, 2024 Report Share Posted March 5, 2024 Working on open sourcing this. Like the original programmer… but gives more visual feedback (made this before my chip version I released). Can program both XOS and PrometheOS. Works nice! Will be a bit because I have to revert things back from changes I made for chip version. 1 5 Quote Link to comment Share on other sites More sharing options...
DAVBERE Posted July 7, 2024 Report Share Posted July 7, 2024 Thanks for sharing your projects dtomcat. I added a header swivel to hold the chip down on the pins and mounted the programmer on an OTG power bank. 1 1 1 Quote Link to comment Share on other sites More sharing options...
DAVBERE Posted July 7, 2024 Report Share Posted July 7, 2024 Next I will make your Chip_programmer. Quote Link to comment Share on other sites More sharing options...
dtomcat Posted July 7, 2024 Author Report Share Posted July 7, 2024 Very nice! Let me know if you have questions Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 7, 2024 Report Share Posted July 7, 2024 I must say thanks to @dtomcatto. Ive had fun to made the programmer and the flashing was flawless at the the end Just uploaded the latest flash files and pressed the buttons 1 Quote Link to comment Share on other sites More sharing options...
dtomcat Posted July 7, 2024 Author Report Share Posted July 7, 2024 You’re welcome Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted July 8, 2024 Report Share Posted July 8, 2024 I would love to be able to start using the buttons instead of just manually typing in the commands through SSH. Very nice, @dtomcat 1 Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 8, 2024 Report Share Posted July 8, 2024 Im getting Xenium flash device not found on my homemade chip. The flasher works on others, but not mine. First step works, but fail in the second step. What to do Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 8, 2024 Report Share Posted July 8, 2024 No shorts is visible Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted July 8, 2024 Report Share Posted July 8, 2024 7 hours ago, Petrolhead said: No shorts is visible The CPLD is being found on the JTAG side, but the flash is having an issue. Are you able to post some high resolution pics of the top of the chip? Never hurts to have an extra set of eyes on the work. Quote Link to comment Share on other sites More sharing options...
dtomcat Posted July 9, 2024 Author Report Share Posted July 9, 2024 Agree. Pics will help. 0,0 indicates it’s not talking to flash. Either CPLD and/or Flash needs reflowed (or more solder)…. Or you have a bad flash 1 1 Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted July 9, 2024 Report Share Posted July 9, 2024 34 minutes ago, dtomcat said: Agree. Pics will help. 0,0 indicates it’s not talking to flash. Either CPLD and/or Flash needs reflowed (or more solder)…. Or you have a bad flash I forgot about the CPLD being the cause of flash issues. Sometimes the CPLD will tell the software that it is okay and even flashed but as soon as it, in turn, tries to manage the logic of flashing the flash chip, (because a functional CPLD is required to flash a bios by addressing the flash) it falls on its face. I have cured flash issues by not looking at the flash chip but by focusing on the CPLD which, in many cases, ended up having bridges or improperly soldered pins once I decided to focus on IT and not the flash chip. Something important to keep in mind. Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 9, 2024 Report Share Posted July 9, 2024 Thx for the support guys. Here is the picture (I did reflow all components) Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted July 9, 2024 Report Share Posted July 9, 2024 9 minutes ago, Petrolhead said: Thx for the support guys. Here is the picture (I did reflow all components) can you take a close up, sharp, picture of the right-side pins on the CPLD there? I could swear that even though the pads and pins are well saturated, some pins are not making a connection. Some from a side angle of those pins would be good too, if you would be so kind. Have you checked for continuity on all the pins, especially those ones? 1 Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 9, 2024 Report Share Posted July 9, 2024 Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 9, 2024 Report Share Posted July 9, 2024 Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted July 9, 2024 Report Share Posted July 9, 2024 3 minutes ago, Petrolhead said: Thank you. I can see that the chip is SLIGHTLY misaligned, and in most cases, as long as it is closer to one set of pads than the other, this is not an issue. However, the pins that are 4 and 5 down on that row from the top look like they just MIGHT have a slight bridge that could be overlooked. It's hard to tell without a scope. Are you able to test 1. For continuity on all the pins 2. For shorts between the pins, especially the pins I mentioned here? 1 Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 9, 2024 Report Share Posted July 9, 2024 I tried every command, and flashing only OnlyFlash did fail of them all Quote Link to comment Share on other sites More sharing options...
Bowlsnapper Posted July 9, 2024 Report Share Posted July 9, 2024 26 minutes ago, Petrolhead said: I tried every command, and flashing only OnlyFlash did fail of them all I'm asking are you able to check for continuity AND shorts with a multimeter tool? This will tell you if there is either a problem with the soldering or a problem with the chips themselves. Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 9, 2024 Report Share Posted July 9, 2024 33 minutes ago, Bowlsnapper said: Thank you. I can see that the chip is SLIGHTLY misaligned, and in most cases, as long as it is closer to one set of pads than the other, this is not an issue. However, the pins that are 4 and 5 down on that row from the top look like they just MIGHT have a slight bridge that could be overlooked. It's hard to tell without a scope. Are you able to test 1. For continuity on all the pins 2. For shorts between the pins, especially the pins I mentioned here? No shorts, but i double check tonight after work 1 Quote Link to comment Share on other sites More sharing options...
FrostyMaGee Posted July 9, 2024 Report Share Posted July 9, 2024 2 hours ago, Petrolhead said: I can’t tell if it’s just in the picture or not but it does look like there might be a bridge where Bowl mentioned. Also looks like maybe that whole right half of pins could use some more flux and a tad bit more solder. The joints look a little dull. Like maybe a cold solder joint here and there. Again it could just be the lighting on the picture though. If you get continuity then I’d say it’s fine. I think you said you reflowed already. Thought I’d mention it just in case. 2 Quote Link to comment Share on other sites More sharing options...
dtomcat Posted July 9, 2024 Author Report Share Posted July 9, 2024 Was just about to type… been playing and couldn’t… looks like a quite a few pins could use more solder 2 Quote Link to comment Share on other sites More sharing options...
dtomcat Posted July 9, 2024 Author Report Share Posted July 9, 2024 I don’t have any good photos… but you want something that looks uniform across all pins 1 Quote Link to comment Share on other sites More sharing options...
dtomcat Posted July 9, 2024 Author Report Share Posted July 9, 2024 1 Quote Link to comment Share on other sites More sharing options...
Petrolhead Posted July 9, 2024 Report Share Posted July 9, 2024 Thank you guys I report back on how its going for me. Quote Link to comment Share on other sites More sharing options...
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