ICE40-notes

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Some notes on programming the ICE40 and its flash.

Adafruit FT232H connections

D0 ---> SCK (flash pin 6)
D1 ---> SDO (flash pin 2)
D2 ---> SDI (flash pin 5)
D3 ---> Not connected
D4 ---> SS (flash pin 1)
D5 ---> Not connected
D6 ---> CDONE
D7 ---> CRESET

Using `iceprog`

The USB vendor/product string must be specified:

  iceprog -d i:0x0403:0x6014

Read flash id:

  iceprog -d i:0x0403:0x6014 -t

Program:

  iceprog -d i:0x0403:0x6014 [filename]

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