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Depending on permissions on your host system you might want to run the
upload script as root.
+## GPIO on Cryptech HSM rev.03
+
+The GPIO ports are located on JP5 (AVR_GPIO). From left to right, as seen when the marking is above the connector, the ports are:
+
+ 1. 3V3
+ 2. PORTC0
+ 3. PORTC1
+ 4. PORTC2
+ 5. PORTC3
+ 6. PORTC4
+ 7. PORTC5
+ 8. PORTC6
+ 9. PORTC7
+10. GND
+
+
## Dependencies
### Fedora