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Updated Troubleshooting (markdown)

TomRBarber
2021-05-14 13:01:50 -04:00
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Troubleshooting.md

@@ -6,7 +6,38 @@ If you purchased a pre-assembled kit, or have already gone through the hardware
# Troubleshooting - Kit
## General
* Do not adjust any jumpers on the BluePill microcontroller itself(the 2 near the USB port). Those are used for programming the device and can potentially erase the memory
* Double check solder connections. Ensure no solder bridges, cold or broken solder joints, bad solder connections, etc. If in doubt, can’t hurt to touch it up.
![](https://raw.githubusercontent.com/TomRBarber/BlueSCSI/main/docs/images/SolderExamples.jpg)
* Make sure Resistor networks are facing the correct way, and the Bluepill is inserted onto the board with the USB next to the SD.
![](https://github.com/TomRBarber/BlueSCSI/raw/main/docs/images/orientation.png)
* Check the chip on the Bluepill itself, make sure no solder balls or anything(If there are, sometimes you can just knock them off with a small screwdriver or toothpick, sometimes you’ll need to use an iron and flux/wick)
![](https://github.com/TomRBarber/BlueSCSI/raw/main/docs/images/SolderBridge.jpg)
* Clean any excess flux on the board, even if it says no-clean. Sometimes that can cause issues. Rubbing alcohol and a toothbrush is usually a good solution.
* Make sure your termination is set correctly. If it’s the last device on the SCSI chain, you must have termination enabled by having the 2 jumpers on the BlueSCSI board near the SCSI port and resistor networks.
* Make sure there are no conflicting SCSI IDs. If possible, remove any other SCSI devices.
* If you have another computer to try it on, give it a try on there.
## No Power
Most computers should provide SCSI termination power through the SCSI cable, which is enough to power the Bluepill(Mac Plus is a known exception unless you do a mod), but it’s entirely possible a computer doesn’t for whatever reason. Unplug the BlueSCSI from the computer’s SCSI Connection and try to power it either through the MicroUSB port on the BluePill, or 5v through the Berg connector. If it lights up at all, it’s possible you computer doesn’t provide the correct SCSI termination power. Double check all your solder joints on the BluePill, SCSI connector, and Resistor networks. If those are good, you can get a cheap Molex to Floppy(Berg) power connector and use it that way.
Also ensure that nothing on the BlueSCSI has been shorted out at all. Any time you’re working on it make sure any headers from components aren’t resting on a conductive surface.
## PC13 LED flashes 5x
This means the SD card cannot be found
* Check the connections in the MicroSD Socket. Make sure they all look covered with solder, no bridges between contacts, etc
* Make sure that the outside of the shield is properly soldered down