FreeCalypso > hg > fc-pcm-if

diff README @ 5:3ae4a6ca5639

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
add README
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 12 Oct 2024 03:11:17 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README	Sat Oct 12 03:11:17 2024 +0000
@@ -0,0 +1,9 @@
+The project contained in this repository is a mechanism for capturing the
+decoded 16-bit linear PCM form of voice call downlink on FreeCalypso boards
+via MCSI, and for feeding 16-bit linear PCM into call uplink via the same
+interface.  The mechanism consists of a Lattice Icestick FPGA board, a gateware
+image for this FPGA, and host programs that interface to it via the UART channel
+of the on-board FT2232H.
+
+So far only downlink Rx has been implemented; to get the uplink path, more work
+is needed on both FPGA gateware and software components.