The following warnings occurred: | |||||||||||||||
Warning [2] Undefined property: MyLanguage::$archive_pages - Line: 2 - File: printthread.php(287) : eval()'d code PHP 8.1.28 (Linux)
|
Build debugging - Printable Version +- CBMSTUFF FORUM (https://www.cbmstuff.com/forum) +-- Forum: CBMSTUFF PRODUCTS (https://www.cbmstuff.com/forum/forumdisplay.php?fid=1) +--- Forum: ICS64 (https://www.cbmstuff.com/forum/forumdisplay.php?fid=130) +---- Forum: Build Guide (https://www.cbmstuff.com/forum/forumdisplay.php?fid=135) +---- Thread: Build debugging (/showthread.php?tid=862) Pages:
1
2
|
RE: Bill of Materials (BOM) and guide for ICS64S - dwestbury - 11-04-2021 (11-01-2021, 11:31 PM)admin Wrote: Check to make sure that your solder joints are good at the 8 pin video connector, as well as the VIC-II chip. Making incremental progress... I have a flashing dead test screen now... Albeit with all ROMs and both CIAs removed. I had been trying to work with a GAL PLA and then a PLAnkton, but wasn't having luck with either. Then I realized that the BOM wanted a 82S100, rather than a 906114-01, so I managed to dig up a working one. Next, I took a look at the joints on the 8-Pin circular DIN connector, which all appeared to be fine, but then I realized something that I wasn't expecting. The angles on the upper-most pins appeared to be off. To verify this I tried another video cable and sure enough it didn't fit properly. It turns out that the pins were organized in more of a "O" shape than an "U", so I wound up replacing the connector with one that fit my cables better. I was finally able to see video activity in the form of a power on flicker (whew hoo!), but the screen was still black (uhg!). I removed all of the ROMs and both CIAs, and on the next boot, Dead test finally started to give off some flash codes. Now, I just need to retest all of my chips... I'll need another time window to get into all that. Thank again for the suggestions. RE: Bill of Materials (BOM) and guide for ICS64S - admin - 11-05-2021 The difference between the connectors is that the original version is a 262 degree, and the other one you have is 270 degree. I have both types, but the 262 degree version is what is included in my kits (or should be!) I have used EVERY type of PLA and replacement known.. I think 13 different ones now, and they all work. RE: Bill of Materials (BOM) and guide for ICS64S - dwestbury - 11-27-2021 (11-05-2021, 05:42 AM)admin Wrote: The difference between the connectors is that the original version is a 262 degree, and the other one you have is 270 degree. I have both types, but the 262 degree version is what is included in my kits (or should be!) Took a break from this build for a while, so checking back in with some updates.... I systematically stepped through and checked every chip again with a Backbit tester, which confirmed that they're all working. One notable exception is the 74LS629, which the tester doesn't appear to detect properly, but I tried multiple chips and none of them made a difference. I also left a note on Evie's forums regarding this test. Just to be safe, I'm using a known good (and relentlessly tested) 82S100 PLA, which should rule that out as a probable cause. I've also tried several types of video cables, but I still haven't gotten the system to reliably boot with the dead test cart, even with all ROMs, CIAs and the SID removed. I quintuple-checked and reflowed my solder joints, which all appear to be good, so I'm back to feeling at a loss. Really want to get this system working, so I'm open to all reasonable suggestions... RE: Bill of Materials (BOM) and guide for ICS64S - admin - 11-27-2021 For any cartridges that use the $E000 address you need to make sure that the reset type is set to not use Exrom. This was not the default for the first few dozen boards that I shipped out. You can check and change this through the OLED screen and menu. The real dead test cartridge uses $E000. RE: Bill of Materials (BOM) and guide for ICS64S - dwestbury - 11-27-2021 (11-27-2021, 10:40 AM)admin Wrote: For any cartridges that use the $E000 address you need to make sure that the reset type is set to not use Exrom. This was not the default for the first few dozen boards that I shipped out. You can check and change this through the OLED screen and menu. The real dead test cartridge uses $E000. The v1.2 manual doesn't appear to have a lot of info regarding the wiring and connecting of the OLED. Is there a separate doc for that? Thanks again! UPDATE: I took a quick look at the add-ons & accessories for the ICS64 and realized that there's enough info there for me to work with... (e.g., It's an I2C display, as opposed to an SPI, it uses a custom pin-out of VCC/GND/SCL/SCA, etc.) RE: Bill of Materials (BOM) and guide for ICS64S - admin - 11-28-2021 The ICS64S board is marked with the pinout for the I2C OLED screen as + - 1 2, where + and - are +5v and Ground, 1 is SCL and 2 is SDA. RE: Build debugging - admin - 11-29-2021 So, I just ran into the exact same problem that you described early on. Powering on my ICS64S board doesn't even "flash" the monitor. Nothing happens at all. I pulled the monitor cable from the ICS64S board while the power was on and I had a IEC connector touch the board at the same time (I have the ICS64S board sitting by itself with no case). Normally this is not a problem, but in this case it shorted out the video port, which has power on it. That caused the fuse to blow. Once I replaced the fuse, I got the typical "flash" the instant power is turn on, and then normal video. Check your fuse. RE: Bill of Materials (BOM) and guide for ICS64S - dwestbury - 12-04-2021 (11-27-2021, 10:40 AM)admin Wrote: For any cartridges that use the $E000 address you need to make sure that the reset type is set to not use Exrom. This was not the default for the first few dozen boards that I shipped out. You can check and change this through the OLED screen and menu. The real dead test cartridge uses $E000. Some more updates... I bought the correct type of I2C OLED and started messing with the board config. As you pointed out, once I disabled the EXROM under "Reset Method", my Dead Test cart started working reliably, with every reboot. Now, I'm getting a single flash, which is difficult to diagnose because all of my DRAM chips are testing properly... So, some progress made, but more work ahead... RE: Build debugging - admin - 12-04-2021 Glad you got the dead test working! |