FreeCalypso > hg > fc-pcm-if
changeset 5:3ae4a6ca5639
add README
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 12 Oct 2024 03:11:17 +0000 |
| parents | 1dacfe7d5b3d |
| children | a10657f8024e |
| files | README |
| diffstat | 1 files changed, 9 insertions(+), 0 deletions(-) [+] |
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--- /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.