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Update 'Hardware info'

Triss 2021-06-22 20:25:14 +00:00
parent 16918e83de
commit 93b5b8d875
1 changed files with 29 additions and 1 deletions
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Hardware-info.md

@ -31,3 +31,31 @@ Top side of the PCB:
Bottom side of the PCB:
![](https://cloud.lain.faith/apps/files_sharing/publicpreview/keFQb8DaK8m66QP?fileId=21070&file=/sq502.jpeg&x=1920&y=1080&a=true)
### JTAG connector
The board has an 8-pin 2mm(?) JTAG connector on the bottom side, under the USB connector. (Connection hasn't been tested with a JTAG probe yet, though. The pins have been checked with a continuity tester that it goes to the Spartan-3AN JTAG pins.) The pinout is as follows:
```
_________
|top side |
\ w/ usb/
|_____|
======================
_______________
| 1 2 3 4 5 6 7 |
| ' ' ' ' ' ' ' |
bottom side, jtag conn
```
1. unknown/not connected
2. unknown/not connected
3. TMS
4. TDO
5. TDI
6. TCK
7. GND
8. VCC
Perhaps the two 'nc' pins go to a different device.