# HG changeset patch # User Mychaela Falconia # Date 1600915634 0 # Node ID 78c2cc6ebbb8c8a84f66b95644144995a64ede4c # Parent 2e9719074e79f85f7ca24a1af2020893f4608eaa DUART-cable: update for DUART28 diff -r 2e9719074e79 -r 78c2cc6ebbb8 DUART-cable --- a/DUART-cable Wed Sep 23 23:06:58 2020 +0000 +++ b/DUART-cable Thu Sep 24 02:47:14 2020 +0000 @@ -1,3 +1,14 @@ +2020-09 update: we have now produced our own DUART28 adapter that takes the +place of PLDkit FT2232D breakout boards. The article that follows was written +in 2019-12, before our DUART28 was even conceived, and it was written for +PLDkit FT2232D adapters. The new cable that needs to be used with DUART28 is +different: DUART28 brings out a 10-pin header in the same pinout as our Calypso +boards, thus the connection between the two boards becomes a straight-through +10-wire ribbon cable. + +Original 2019-12 article follows +================================ + The Calypso chip has two UARTs, called MODEM and IrDA in the chip docs. The primary UART (MODEM) has 4 signals (TxD, RxD, RTS and CTS), whereas the other UART (IrDA) has data leads only (TxD and RxD). TI's C-Sample and D-Sample