- pacsat-dev - mailman.amsat.org

Re: Prototype Quad RX 1 TX boards
by Chris Thompson 27 Feb '24

27 Feb '24

Main is still the launchpad version. We can merge soon but I wanted to see if the board was working rather than dealing with merge issues. There was a tag for the build I used at Symposium and I added a tag called "final_launch_pad_build". So we will be able to re-branch from main at this point in the future after we merge the blinky stuff in. For now I checked out Burns' branch and created a branch called g0kla_blinky_testing with a few additional changes on top. With that said, it looks pretty stable (minus the receivers!). If no one objects then I am going to merge into main soon so that we can collaborate more easily. Main can be the tip of the dev branch and should always compile and be working but can contain known bugs we are all aware of. Chris On Tue, Feb 27, 2024 at 9:28 AM Burns Fisher (AMSAT) via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > No, SW V2 has nothing in it. I created it at Bob's request, but then we > decided it would all work easier and better to make a branch of the first > one. My code is branch WB1FJ_Port_to_Blinky. It looks like Chris merged > something with main, but I'm not sure what. However, until a couple days > ago at least, main was still the launchpad version. > > 73, > > Burns Fisher, WB1FJ > *AMSAT(R) Engineering -- Flight Software* > > > On Tue, Feb 27, 2024 at 9:22 AM Jim McCullers via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > >> >> >> I received my board last night and got it unpacked and started the visual >> review process, as in, that’s where that is. >> >> I’ll get it over to the software station tonight and start the learning >> process. >> >> My assumption is Burns V2 github version is the correct one to use. >> >> >> >> Looking at the schematic, there may be a possible problem in the receiver >> front end but I need to review the AX5043 documentation and schematic >> before testing. >> >> >> >> 73 >> >> >> >> Jim >> >> WA4CWI >> >> >> >> Initially there is an issue hearing a signal. RX Device 0 and 1 have no >> RSSI even if a strong signal is transmitted on their receive frequency RX >> Devices 2 and 3 both show an RSSI change with a transmitted signal. >> >> >> >> I'll try to see if one of them can trigger the interrupt line. Initial >> testing suggests they do not. >> >> >> >> 73 >> >> Chris >> >> >> >> On Mon, Feb 26, 2024 at 9:05 PM Bob Stricklin via pacsat-dev < >> pacsat-dev(a)amsat.org> wrote: >> >> I just checked a board and I see the RX3 sitting at GND state. Assuming >> the TMS570 is programmed to be an input the AX5043 must be pulling this >> line down to a low state. >> >> >> >> The IRQ line is pin 19 and they all have a via close by that you could >> scratch the solder mask off of and measure the voltage. If they are >> programed correctly and receive data this line should go high and stay >> there until the buffer is cleared. >> >> >> >> Bob >> >> >> >> >> >> >> >> >> >> On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev < >> pacsat-dev(a)amsat.org> wrote: >> >> >> >> Also remember that none of the interrupt lines has been tested. As I >> recall Tx does not need it, but Rx does. This could be software. Is it >> possible to jump the IRQ line manually somehow to see if you get an >> interrupt out of it? >> >> >> 73, >> >> >> >> Burns Fisher, WB1FJ >> >> *AMSAT**(R) **Engineering -- Flight Software* >> >> >> >> >> >> On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev < >> pacsat-dev(a)amsat.org> wrote: >> >> Both Chris and Jim have their boards to work with. Chris has started to >> work with his and rotors TX is sending packets but not receiving any >> packets yet. Still working to understand issue. >> >> It could be hardware or software. >> >> To help sort out issues with the AX5043 I have made up a table (attached) >> to correlate the Select, IRQ lines with the physical chip on the board. All >> four AX5043s should have an RX signal so in theory any one of them could be >> used to receive signals. However there could be a hardware issue with any >> of them. The RX3 AX5043 at the top of board is configured to work single >> ended. The three other devices are working differentially. The code may >> need different register settings for each of these to work properly but in >> terms of the AX5043 I think they all should be looking for a differential >> signal. I expect the signal strength of RX3 will be lower. >> >> Bob >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> >> >> >> >> -- >> >> Chris E. Thompson >> chrisethompson(a)gmail.com >> g0kla(a)arrl.net >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > -- Chris E. Thompson chrisethompson(a)gmail.com g0kla(a)arrl.net

2 1

Re: Prototype Quad RX 1 TX boards
by Bob Stricklin 27 Feb '24

27 Feb '24

In my humble opinion it would be better to have a new project for this board and not have the code for this project and others mixed together. I think the problem is we don’t really understand GitHub and how to manage the permissions for AMSAT group. It does work however with the branch version you just have to work at CCS to get it to deal with the branch. I have highlighted the one you want on the image (WB1FJ_Port_to_Blinky). You can see by selecting the main on the GitHub. button If you have trouble with CCS I can give you some hints on that also. Bob [cid:0CED1542-B870-4A3D-AF7F-50206669C762@StricklinRanch.com] On Feb 27, 2024, at 8:28 AM, Burns Fisher (AMSAT) via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: No, SW V2 has nothing in it. I created it at Bob's request, but then we decided it would all work easier and better to make a branch of the first one. My code is branch WB1FJ_Port_to_Blinky. It looks like Chris merged something with main, but I'm not sure what. However, until a couple days ago at least, main was still the launchpad version. 73, Burns Fisher, WB1FJ AMSAT(R) Engineering -- Flight Software On Tue, Feb 27, 2024 at 9:22 AM Jim McCullers via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: I received my board last night and got it unpacked and started the visual review process, as in, that’s where that is. I’ll get it over to the software station tonight and start the learning process. My assumption is Burns V2 github version is the correct one to use. Looking at the schematic, there may be a possible problem in the receiver front end but I need to review the AX5043 documentation and schematic before testing. 73 Jim WA4CWI Initially there is an issue hearing a signal. RX Device 0 and 1 have no RSSI even if a strong signal is transmitted on their receive frequency RX Devices 2 and 3 both show an RSSI change with a transmitted signal. I'll try to see if one of them can trigger the interrupt line. Initial testing suggests they do not. 73 Chris On Mon, Feb 26, 2024 at 9:05 PM Bob Stricklin via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: I just checked a board and I see the RX3 sitting at GND state. Assuming the TMS570 is programmed to be an input the AX5043 must be pulling this line down to a low state. The IRQ line is pin 19 and they all have a via close by that you could scratch the solder mask off of and measure the voltage. If they are programed correctly and receive data this line should go high and stay there until the buffer is cleared. Bob On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: Also remember that none of the interrupt lines has been tested. As I recall Tx does not need it, but Rx does. This could be software. Is it possible to jump the IRQ line manually somehow to see if you get an interrupt out of it? 73, Burns Fisher, WB1FJ AMSAT(R) Engineering -- Flight Software On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: Both Chris and Jim have their boards to work with. Chris has started to work with his and rotors TX is sending packets but not receiving any packets yet. Still working to understand issue. It could be hardware or software. To help sort out issues with the AX5043 I have made up a table (attached) to correlate the Select, IRQ lines with the physical chip on the board. All four AX5043s should have an RX signal so in theory any one of them could be used to receive signals. However there could be a hardware issue with any of them. The RX3 AX5043 at the top of board is configured to work single ended. The three other devices are working differentially. The code may need different register settings for each of these to work properly but in terms of the AX5043 I think they all should be looking for a differential signal. I expect the signal strength of RX3 will be lower. Bob ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/> <image001.png><image002.png><image003.png><image004.png> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/> -- Chris E. Thompson chrisethompson(a)gmail.com<mailto:chrisethompson@gmail.com> g0kla(a)arrl.net<mailto:g0kla@arrl.net> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/>

1 0

Re: Prototype Quad RX 1 TX boards
by Burns Fisher (AMSAT) 27 Feb '24

27 Feb '24

No, SW V2 has nothing in it. I created it at Bob's request, but then we decided it would all work easier and better to make a branch of the first one. My code is branch WB1FJ_Port_to_Blinky. It looks like Chris merged something with main, but I'm not sure what. However, until a couple days ago at least, main was still the launchpad version. 73, Burns Fisher, WB1FJ *AMSAT(R) Engineering -- Flight Software* On Tue, Feb 27, 2024 at 9:22 AM Jim McCullers via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > > > I received my board last night and got it unpacked and started the visual > review process, as in, that’s where that is. > > I’ll get it over to the software station tonight and start the learning > process. > > My assumption is Burns V2 github version is the correct one to use. > > > > Looking at the schematic, there may be a possible problem in the receiver > front end but I need to review the AX5043 documentation and schematic > before testing. > > > > 73 > > > > Jim > > WA4CWI > > > > Initially there is an issue hearing a signal. RX Device 0 and 1 have no > RSSI even if a strong signal is transmitted on their receive frequency RX > Devices 2 and 3 both show an RSSI change with a transmitted signal. > > > > I'll try to see if one of them can trigger the interrupt line. Initial > testing suggests they do not. > > > > 73 > > Chris > > > > On Mon, Feb 26, 2024 at 9:05 PM Bob Stricklin via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > > I just checked a board and I see the RX3 sitting at GND state. Assuming > the TMS570 is programmed to be an input the AX5043 must be pulling this > line down to a low state. > > > > The IRQ line is pin 19 and they all have a via close by that you could > scratch the solder mask off of and measure the voltage. If they are > programed correctly and receive data this line should go high and stay > there until the buffer is cleared. > > > > Bob > > > > > > > > > > On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > > > > Also remember that none of the interrupt lines has been tested. As I > recall Tx does not need it, but Rx does. This could be software. Is it > possible to jump the IRQ line manually somehow to see if you get an > interrupt out of it? > > > 73, > > > > Burns Fisher, WB1FJ > > *AMSAT**(R) **Engineering -- Flight Software* > > > > > > On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > > Both Chris and Jim have their boards to work with. Chris has started to > work with his and rotors TX is sending packets but not receiving any > packets yet. Still working to understand issue. > > It could be hardware or software. > > To help sort out issues with the AX5043 I have made up a table (attached) > to correlate the Select, IRQ lines with the physical chip on the board. All > four AX5043s should have an RX signal so in theory any one of them could be > used to receive signals. However there could be a hardware issue with any > of them. The RX3 AX5043 at the top of board is configured to work single > ended. The three other devices are working differentially. The code may > need different register settings for each of these to work properly but in > terms of the AX5043 I think they all should be looking for a differential > signal. I expect the signal strength of RX3 will be lower. > > Bob > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > > > -- > > Chris E. Thompson > chrisethompson(a)gmail.com > g0kla(a)arrl.net > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

1 0

Re: Prototype Quad RX 1 TX boards
by Jim McCullers 27 Feb '24

27 Feb '24

I received my board last night and got it unpacked and started the visual review process, as in, that’s where that is. I’ll get it over to the software station tonight and start the learning process. My assumption is Burns V2 github version is the correct one to use. Looking at the schematic, there may be a possible problem in the receiver front end but I need to review the AX5043 documentation and schematic before testing. 73 Jim WA4CWI Initially there is an issue hearing a signal. RX Device 0 and 1 have no RSSI even if a strong signal is transmitted on their receive frequency RX Devices 2 and 3 both show an RSSI change with a transmitted signal. I'll try to see if one of them can trigger the interrupt line. Initial testing suggests they do not. 73 Chris On Mon, Feb 26, 2024 at 9:05 PM Bob Stricklin via pacsat-dev <pacsat-dev(a)amsat.org <mailto:pacsat-dev@amsat.org> > wrote: I just checked a board and I see the RX3 sitting at GND state. Assuming the TMS570 is programmed to be an input the AX5043 must be pulling this line down to a low state. The IRQ line is pin 19 and they all have a via close by that you could scratch the solder mask off of and measure the voltage. If they are programed correctly and receive data this line should go high and stay there until the buffer is cleared. Bob On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev <pacsat-dev(a)amsat.org <mailto:pacsat-dev@amsat.org> > wrote: Also remember that none of the interrupt lines has been tested. As I recall Tx does not need it, but Rx does. This could be software. Is it possible to jump the IRQ line manually somehow to see if you get an interrupt out of it? 73, Burns Fisher, WB1FJ AMSAT(R) Engineering -- Flight Software On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev <pacsat-dev(a)amsat.org <mailto:pacsat-dev@amsat.org> > wrote: Both Chris and Jim have their boards to work with. Chris has started to work with his and rotors TX is sending packets but not receiving any packets yet. Still working to understand issue. It could be hardware or software. To help sort out issues with the AX5043 I have made up a table (attached) to correlate the Select, IRQ lines with the physical chip on the board. All four AX5043s should have an RX signal so in theory any one of them could be used to receive signals. However there could be a hardware issue with any of them. The RX3 AX5043 at the top of board is configured to work single ended. The three other devices are working differentially. The code may need different register settings for each of these to work properly but in terms of the AX5043 I think they all should be looking for a differential signal. I expect the signal strength of RX3 will be lower. Bob ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org <mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org <mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org <https://mailman.amsat.org/> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org <mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org <mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org <mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org <mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org -- Chris E. Thompson chrisethompson(a)gmail.com <mailto:chrisethompson@gmail.com> g0kla(a)arrl.net <mailto:g0kla@arrl.net>

1 0

Re: Prototype Quad RX 1 TX boards
by Chris Thompson 27 Feb '24

27 Feb '24

Initially there is an issue hearing a signal. RX Device 0 and 1 have no RSSI even if a strong signal is transmitted on their receive frequency. RX Devices 2 and 3 both show an RSSI change with a transmitted signal. I'll try to see if one of them can trigger the interrupt line. Initial testing suggests they do not. 73 Chris On Mon, Feb 26, 2024 at 9:05 PM Bob Stricklin via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > I just checked a board and I see the RX3 sitting at GND state. Assuming > the TMS570 is programmed to be an input the AX5043 must be pulling this > line down to a low state. > > The IRQ line is pin 19 and they all have a via close by that you could > scratch the solder mask off of and measure the voltage. If they are > programed correctly and receive data this line should go high and stay > there until the buffer is cleared. > > Bob > > > > > On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > > Also remember that none of the interrupt lines has been tested. As I > recall Tx does not need it, but Rx does. This could be software. Is it > possible to jump the IRQ line manually somehow to see if you get an > interrupt out of it? > > 73, > > Burns Fisher, WB1FJ > *AMSAT(R) Engineering -- Flight Software* > > > On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > >> Both Chris and Jim have their boards to work with. Chris has started to >> work with his and rotors TX is sending packets but not receiving any >> packets yet. Still working to understand issue. >> >> It could be hardware or software. >> >> To help sort out issues with the AX5043 I have made up a table (attached) >> to correlate the Select, IRQ lines with the physical chip on the board. All >> four AX5043s should have an RX signal so in theory any one of them could be >> used to receive signals. However there could be a hardware issue with any >> of them. The RX3 AX5043 at the top of board is configured to work single >> ended. The three other devices are working differentially. The code may >> need different register settings for each of these to work properly but in >> terms of the AX5043 I think they all should be looking for a differential >> signal. I expect the signal strength of RX3 will be lower. >> >> Bob >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > -- Chris E. Thompson chrisethompson(a)gmail.com g0kla(a)arrl.net

1 0

Re: Prototype Quad RX 1 TX boards
by Bob Stricklin 27 Feb '24

27 Feb '24

I just checked a board and I see the RX3 sitting at GND state. Assuming the TMS570 is programmed to be an input the AX5043 must be pulling this line down to a low state. The IRQ line is pin 19 and they all have a via close by that you could scratch the solder mask off of and measure the voltage. If they are programed correctly and receive data this line should go high and stay there until the buffer is cleared. Bob On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: Also remember that none of the interrupt lines has been tested. As I recall Tx does not need it, but Rx does. This could be software. Is it possible to jump the IRQ line manually somehow to see if you get an interrupt out of it? 73, Burns Fisher, WB1FJ AMSAT(R) Engineering -- Flight Software On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: Both Chris and Jim have their boards to work with. Chris has started to work with his and rotors TX is sending packets but not receiving any packets yet. Still working to understand issue. It could be hardware or software. To help sort out issues with the AX5043 I have made up a table (attached) to correlate the Select, IRQ lines with the physical chip on the board. All four AX5043s should have an RX signal so in theory any one of them could be used to receive signals. However there could be a hardware issue with any of them. The RX3 AX5043 at the top of board is configured to work single ended. The three other devices are working differentially. The code may need different register settings for each of these to work properly but in terms of the AX5043 I think they all should be looking for a differential signal. I expect the signal strength of RX3 will be lower. Bob ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org [cid:621FA3EE-2500-487B-82C0-1274E4099345@StricklinRanch.com][cid:12F502D6-C99F-4F98-94B4-8D6729D3D44C@StricklinRanch.com][cid:A673E328-6426-45B8-974A-2B03CF7DD285@StricklinRanch.com][cid:2D3C26D2-7830-4E8B-B524-AC90648D4C19@StricklinRanch.com]

1 0

Re: Prototype Quad RX 1 TX boards
by Burns Fisher (AMSAT) 27 Feb '24

27 Feb '24

We know that interrupts work on both the Launchpad board and the RTIHU, so if they and Blinky are all wired the same way, we should be good there. That is kind of weird though. 73, Burns Fisher, WB1FJ *AMSAT(R) Engineering -- Flight Software* On Mon, Feb 26, 2024 at 8:32 PM Bob Stricklin via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > The AX5043 has a 65K pull-up on the IRQ line. It interrupts by taking this > line to a high state. The data sheet dose not say this but the output must > be driven low when not in IRQ state. Seems like a odd way to do this so I > may be reading it wrong. Output lines are supposed to support up to 40 mA. > So you could probably cause an interrupt by using a 1K resistor with a > jumper on it. Connect the jumper to 3.3V (Tab of the big regulator standing > up and bent over) and tap the other end of the resistor on the IRQ line. > You should get a single pulse and not damage anything. > > Bob > > On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > > Also remember that none of the interrupt lines has been tested. As I > recall Tx does not need it, but Rx does. This could be software. Is it > possible to jump the IRQ line manually somehow to see if you get an > interrupt out of it? > > 73, > > Burns Fisher, WB1FJ > *AMSAT(R) Engineering -- Flight Software* > > > On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev < > pacsat-dev(a)amsat.org> wrote: > >> Both Chris and Jim have their boards to work with. Chris has started to >> work with his and rotors TX is sending packets but not receiving any >> packets yet. Still working to understand issue. >> >> It could be hardware or software. >> >> To help sort out issues with the AX5043 I have made up a table (attached) >> to correlate the Select, IRQ lines with the physical chip on the board. All >> four AX5043s should have an RX signal so in theory any one of them could be >> used to receive signals. However there could be a hardware issue with any >> of them. The RX3 AX5043 at the top of board is configured to work single >> ended. The three other devices are working differentially. The code may >> need different register settings for each of these to work properly but in >> terms of the AX5043 I think they all should be looking for a differential >> signal. I expect the signal strength of RX3 will be lower. >> >> Bob >> >> ----------------------------------------------------------- >> >> pacsat-dev mailing list -- pacsat-dev(a)amsat.org >> View archives of this mailing list at >> https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org >> To unsubscribe send an email to pacsat-dev-leave(a)amsat.org >> Manage all of your AMSAT-NA mailing list preferences at >> https://mailman.amsat.org >> > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

1 0

Re: Prototype Quad RX 1 TX boards
by Bob Stricklin 27 Feb '24

27 Feb '24

The AX5043 has a 65K pull-up on the IRQ line. It interrupts by taking this line to a high state. The data sheet dose not say this but the output must be driven low when not in IRQ state. Seems like a odd way to do this so I may be reading it wrong. Output lines are supposed to support up to 40 mA. So you could probably cause an interrupt by using a 1K resistor with a jumper on it. Connect the jumper to 3.3V (Tab of the big regulator standing up and bent over) and tap the other end of the resistor on the IRQ line. You should get a single pulse and not damage anything. Bob On Feb 26, 2024, at 7:15 PM, Burns Fisher (AMSAT) via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: Also remember that none of the interrupt lines has been tested. As I recall Tx does not need it, but Rx does. This could be software. Is it possible to jump the IRQ line manually somehow to see if you get an interrupt out of it? 73, Burns Fisher, WB1FJ AMSAT(R) Engineering -- Flight Software On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev <pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org>> wrote: Both Chris and Jim have their boards to work with. Chris has started to work with his and rotors TX is sending packets but not receiving any packets yet. Still working to understand issue. It could be hardware or software. To help sort out issues with the AX5043 I have made up a table (attached) to correlate the Select, IRQ lines with the physical chip on the board. All four AX5043s should have an RX signal so in theory any one of them could be used to receive signals. However there could be a hardware issue with any of them. The RX3 AX5043 at the top of board is configured to work single ended. The three other devices are working differentially. The code may need different register settings for each of these to work properly but in terms of the AX5043 I think they all should be looking for a differential signal. I expect the signal strength of RX3 will be lower. Bob ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org<https://mailman.amsat.org/> ----------------------------------------------------------- pacsat-dev mailing list -- pacsat-dev(a)amsat.org<mailto:pacsat-dev@amsat.org> View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org To unsubscribe send an email to pacsat-dev-leave(a)amsat.org<mailto:pacsat-dev-leave@amsat.org> Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

1 0

Re: Prototype Quad RX 1 TX boards
by Burns Fisher (AMSAT) 27 Feb '24

27 Feb '24

Also remember that none of the interrupt lines has been tested. As I recall Tx does not need it, but Rx does. This could be software. Is it possible to jump the IRQ line manually somehow to see if you get an interrupt out of it? 73, Burns Fisher, WB1FJ *AMSAT(R) Engineering -- Flight Software* On Mon, Feb 26, 2024 at 8:05 PM Bob Stricklin via pacsat-dev < pacsat-dev(a)amsat.org> wrote: > Both Chris and Jim have their boards to work with. Chris has started to > work with his and rotors TX is sending packets but not receiving any > packets yet. Still working to understand issue. > > It could be hardware or software. > > To help sort out issues with the AX5043 I have made up a table (attached) > to correlate the Select, IRQ lines with the physical chip on the board. All > four AX5043s should have an RX signal so in theory any one of them could be > used to receive signals. However there could be a hardware issue with any > of them. The RX3 AX5043 at the top of board is configured to work single > ended. The three other devices are working differentially. The code may > need different register settings for each of these to work properly but in > terms of the AX5043 I think they all should be looking for a differential > signal. I expect the signal strength of RX3 will be lower. > > Bob > > ----------------------------------------------------------- > > pacsat-dev mailing list -- pacsat-dev(a)amsat.org > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/pacsat-dev@amsat.org > To unsubscribe send an email to pacsat-dev-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org >

1 0

Prototype Quad RX 1 TX boards
by Bob Stricklin 27 Feb '24

27 Feb '24

Both Chris and Jim have their boards to work with. Chris has started to work with his and rotors TX is sending packets but not receiving any packets yet. Still working to understand issue. It could be hardware or software. To help sort out issues with the AX5043 I have made up a table (attached) to correlate the Select, IRQ lines with the physical chip on the board. All four AX5043s should have an RX signal so in theory any one of them could be used to receive signals. However there could be a hardware issue with any of them. The RX3 AX5043 at the top of board is configured to work single ended. The three other devices are working differentially. The code may need different register settings for each of these to work properly but in terms of the AX5043 I think they all should be looking for a differential signal. I expect the signal strength of RX3 will be lower. Bob

1 0