Charles G4GUO has been now working full-time on allowing the Raspberry-Pi processor to drive the DATV-Express board in DVB-S protocol (instead of using a full-blown Ubuntu PC). This is not a quick project. Charles sees at least four "development phases" to finishing our Raspberry-Pi work.
Development-Phase01 - move all DVB-S encoding into FPGA and talk to board with ubuntu-PC using MPEG-2
Development-Phase02 - integrate ubuntu code used in phase01 into Raspberry and use MPEG-4 payload with PI-camera and receiving on a DVB-S2 STB (see Fig01)
Development-Phase03 - use Hauppauge USB encoder to produce true MPEG-2 with the DVB-S protocol (see fig02)
Development-Phase04 - combines DVB-S dongle receiver with the Phase03 design to create a DVB-S transceiver that is Raspberry-Pi controlled
Figure 1 - Block diagram of an interim-development phase for Raspberry-Pi effort (called “Development-Phase02”) using a MPEG-4 payload from PI-camera with DVB-S protocol. NOTE - a DVB-S2 STB is used to get access to MPEG-4 decoding CODECs
Figure 2 - Block diagram of “Development-phase03” for Raspberry-Pi using Hauppauge encoder to produce genuine DVB-S NOTE - Keyboard, mouse, hub, and display (in dashed lines) only needed to configure the transmitter.
Charles has now completed “Development-Phase01” by moving all DVB-S encoding into the FPGA on the DATV-Express board and testing it with an ubuntu PC. Now G4GUO is in the middle of working on Raspberry "Development-Phase02". Charles G4GUO points out that there can be many ways to configure a Raspberry-Pi with the DATV-Express board, including using Ethernet or Wi-Fi to configure settings for transmitting.
“full speed ahead”….de Ken W6HHC