Feature request

[armor66]

This is a request in case it is possible to add. I gratefully use freejoy for open.hd(wifibroadcast), and would like to use it wireless with RC Flight Simulator. Is it possible to add some serial protocol output like SBUS to TXD PA9 or just hint where to start.

[vostrenkov]

Yes, it is possible (but a bit not the goal of the project). There is a place in code where HID report is sent to the host device. You can add serial output just there. File stm32f10x_it.c:

if (ticks - joy_ticks >= dev_config.exchange_period_ms )        
{           
joy_ticks = ticks;                          // getting fresh data to joystick report buffer         

ButtonsGet(physical_buttons_data, joy_report.button_data, &joy_report.shift_button_data);           
AnalogGet(joy_report.axis_data, NULL, 
joy_report.raw_axis_data);              
POVsGet(joy_report.pov_data);                       
joy_report.raw_button_data[0] = btn_num;    

for (uint8_t i=0; i<64; i++)                
{               
joy_report.raw_button_data[1 + ((i & 0xF8)>>3)] &= ~(1 << (i & 0x07));              joy_report.raw_button_data[1 + ((i & 0xF8)>>3)] |= physical_buttons_data[btn_num+i] << (i & 0x07);          }           

btn_num += 64;          
btn_num = btn_num & 0x7F;                       
joy_report.id = REPORT_ID_JOY;

USB_CUSTOM_HID_SendReport((uint8_t *)&joy_report.id, sizeof(joy_report) - sizeof(joy_report.dummy));    

// Add serial output here (better to use DMA transfer)  
}

[armor66]

Thank you so much. That's enough.

[Sergey-S-FF]

@armor66 Did you succeed after all?