Is it possible for two OSD resolution working at the same time?

lida2003 · October 28, 2024, 3:40am

I have analog osd MAX7456 30x13 and digital osd OpenIPC 53x20.

I found that the document (OSD — Copter documentation) uses RC channel’s (OSD_CHAN) value to select which OSDx_ to use, but it’s not simultaneously working.

So is it possible for two OSD resolution working at the same time?

lida2003 · January 20, 2025, 4:47am

It seems that these two OSD type can’t be working at the same time. Or what I have missed here?

OSD1_ENABLE = 1
OSD_TYPE = 1
OSD1_TXT_RES = 0 (0:30X16)


OSD2_ENABLE = 1
OSD_TYPE2 = 5 (MSP_DISPLAYPORT)
OSD2_TXT_RES = 1 (1:50X18；2:60X22)

SERIAL8_PROTOCOL = 42
SERIAL8_BAUD=115 (115200)

twoOSD.param (25.6 KB)

lida2003 · January 23, 2025, 9:29am

It seems 2 OSD should be supported to work at the same time, but I can’t get it working, any configuration I missed here?

github.com

ArduPilot/ardupilot/blob/4e12b4ee0e4618a8093bfa4705b3ce2bffba52fc/libraries/AP_OSD/AP_OSD.cpp#L392-L408


      
          void AP_OSD::osd_thread()
          {
              // initialize thread specific code once
              for (uint8_t instance = 0; instance < _backend_count; instance++) {
                  _backends[instance]->osd_thread_run_once();
              }
          
          
              while (true) {
                  hal.scheduler->delay(100);
                  if (!_disable) {
                      update_stats();
                      update_current_screen();
                  }
                  update_osd();
              }
          }

EDIT: Here is doc link I have followed: OSD — Copter documentation

lida2003 · January 27, 2025, 8:21am

Thank you all! It works!

OSD1_ENABLE = 1
OSD_TYPE = 1
OSD1_TXT_RES = 0 (0:30X16)


OSD2_ENABLE = 1
OSD_TYPE2 = 5 (MSP_DISPLAYPORT)
OSD2_TXT_RES = 1 (1:50X18；2:60X22)

SERIAL8_PROTOCOL = 42
SERIAL8_BAUD=115 (115200)