DIY EHCI debug dongle: Difference between revisions
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(Prototype debug dongle with FX2LP boards) |
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Revision as of 06:03, 17 March 2013
Hardware
An EHCI debug dongle can be built using two Cypress FX2LP prototyping boards with CY7C68013A. There are a few boards in the 10-15 EUR pricerange to choose from and a dozen suppliers in ebay.
A slower uni-directional boot console has been demonstrated to work with one such board and a TTL-UART-to-USB adapter.
Schematics
Schematic is modified from Cypress Application Note AN63787 [1].
Dongle firmware
Firmware is built with sdcc using fx2lib.
Original git repository [2]. Offline.
Recent updates are here [3].