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Explain difference between exp 3.0 and 3.1

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gijsio
2021-05-03 15:27:23 +02:00
committed by peter-pycom
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commit a82c770dc9
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content/datasheets/expansionboards/expansion3.md
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@@ -44,6 +44,7 @@ The Expansion Board features a single cell Li-Ion/Li-Po charger with a JST PHR
### Differences between v2.0 and v3.0
On version 3.0:
* The FTDI chip as been replaced with a custom programmed PIC, similar to the
Pysense/Pytrack/Pyscan boards. This allows our firmware update tool to
@@ -56,6 +57,11 @@ The Expansion Board features a single cell Li-Ion/Li-Po charger with a JST PHR
a Pycom module, the module will enter safe boot.
### Differences between v3.0 and v3.1
On version 3.1:
* The green USB-LED is only lit when the USB communication stack is running
* The USB-Serial converter (PIC) is powered using any power source. Previously, it would only power up when the board was powered through USB.
## Troubleshooting
* If PIC stays in bootloader mode, the [`dfu-util` update](/updatefirmware/expansionboard/) should be performed