Here are some steps that may allow this to be done. Note that I do not have a V2/3 zynaptik so have not tested this…
- Stop Zynthian at command line:
systemctl stop zynthian - Hold jumper wire between RPi header pin 18 and R15
- Run update program
It may be easier to remove the ribbon cable and reconnect the following pins to gain easier access to header pin 18. This would allow a male to female jumper wire to be attached to header pin 18 and held on the resistor pad.
| RPi | Zynaptik | Use |
|---|---|---|
| 2 | 2 | 5V |
| 6 | 6 | GND |
| 3 | 3 | I2C SDA |
| 5 | 5 | I2C SCL |
| 24 | R15 | LDAC - This is the flying lead that is held to R15 pad |
The program is here:
mcp4728_set_address (7.9 KB)
This is a bit geeky and requires a steady hand and nerves of steel so please only try this if you feel confident (enough). I have not tested any of this. There are various reasons why it might not work but in theory, it is plausible it just might!
Good luck and stay safe out there…