VTX_PWR blinking in OSD but IRC Tramp works

menschel · September 25, 2024, 12:26pm

Hello,

I run a HGLRC Zeus Nano VTX together with a SpeedyBee F405 Wing Mini setup on a ZOHD drift and after the maiden flight, I was wondering why the VTX_PWR item in OSD blinks continously.

From what I experience, The TX direction of IRC Tramp correctly works as the VTX switches power levels, PIT mode and frequencies.

Is there any logical explanation why VTX_PWR item keeps blinking?

CandyFlightPath · October 28, 2024, 12:44pm

Hello, The VTX_PWR is always blinking on my Ardupilot OSD screen. ArduPlane V4.6.0-dev(075a5c3c). The FC is MicoAir405Mini Flight Controller. The VTX is GEPRC RAD Tiny 5.8G 400mW VTX, the protocol is IRC Tramp. Can someone please tell us how to solve this?
The DVR log video is below.

menschel · November 5, 2024, 9:31am

No solution, I assume it’s a bug but it does not hurt. I have ~30 flights and no issues with IRC Tramp at all.

menschel · November 11, 2024, 4:28pm

Bug, there is some vtx.set_configuration_finished(true); missing here!

github.com

ArduPilot/ardupilot/blob/master/libraries/AP_VideoTX/AP_Tramp.cpp#L140


      
                  vtx.set_power_mw(power);
                  if (pit_mode) {
                      vtx.set_options(vtx.get_options() | uint8_t(AP_VideoTX::VideoOptions::VTX_PITMODE));
                  } else {
                      vtx.set_options(vtx.get_options() & ~uint8_t(AP_VideoTX::VideoOptions::VTX_PITMODE));
                  }
          
                  // make sure the configured values now reflect reality
                  // if they do then announce if there were changes
                  if (!vtx.set_defaults() && update_pending && !vtx.have_params_changed()) {
                      vtx.announce_vtx_settings();
                  }
          
                  debug("device config: freq: %u, cfg pwr: %umw, act pwr: %umw, pitmode: %u",
                      unsigned(freq), unsigned(power), unsigned(cur_act_power), unsigned(pit_mode));
          
          
                  return 'v';
              }
              break;
          }

CandyFlightPath · November 18, 2024, 1:11pm

Dear Menschel, thank you very much for your investigation. Now that it is clear that it is a bug in the OSD display, I can fly with peace of mind. However, I am not skilled enough to modify the code and build it myself, so I hope it will be included in a future update.

menschel · November 18, 2024, 7:16pm

it was fixed