DATV-Express Project – March update report
Posted: Sun Mar 30, 2014 2:55 pm
In March, BATC announced that fully-assembled DATV-Express boards can also be ordered through the BATC Shop under the "Hardware and Kits" category. See: http://www.batc.org.uk/forum/viewtopic.php?t=3773 With BATC working in partnership with the DATV-Express team, BATC is stocking (ex-stock) the PCBA to enable members in the UK and Europe to purchase it without the hassle of exchange rates / customs duty / VAT when importing it from the USA. The link to the BATC Shop listings can be found at http://www.batc.org.uk/ The BATC price is directly comparable to the US price from the DATV-Express website after you have added VAT and customs/admin charges. Currently, Art WA8RMC is shipping more DATV-Express boards to the BATC Shop, almost every week.
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
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