The PSDK has the power management which should allow the application to request high power mode (switch from 13.6V to 17V). I have the following code:
auto returnCode = DjiPowerManagement_Init(); [color=var(--ds-text-subtlest, #505F79) !important]2 [color=var(--ds-text-subtlest, #505F79) !important]3 if (returnCode != DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS) [color=var(--ds-text-subtlest, #505F79) !important]4 { [color=var(--ds-text-subtlest, #505F79) !important]5 USER_LOG_ERROR("could not init, error code: 0x%08X", returnCode); [color=var(--ds-text-subtlest, #505F79) !important]6 return DJI_ERROR_SYSTEM_MODULE_CODE_UNKNOWN; [color=var(--ds-text-subtlest, #505F79) !important]7 } [color=var(--ds-text-subtlest, #505F79) !important]8 [color=var(--ds-text-subtlest, #505F79) !important]9 auto callback_val = [](E_DjiPowerManagementPinState pinState) -> T_DjiReturnCode [color=var(--ds-text-subtlest, #505F79) !important]10 { [color=var(--ds-text-subtlest, #505F79) !important]11 std::cout << "Got pin state from callback " << pinState << "\n"; [color=var(--ds-text-subtlest, #505F79) !important]12 return DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS; [color=var(--ds-text-subtlest, #505F79) !important]13 }; [color=var(--ds-text-subtlest, #505F79) !important]14 [color=var(--ds-text-subtlest, #505F79) !important]15 DjiPowerManagement_RegWriteHighPowerApplyPinCallback(callback_val); [color=var(--ds-text-subtlest, #505F79) !important]16 [color=var(--ds-text-subtlest, #505F79) !important]17 returnCode = DjiPowerManagement_ApplyHighPowerSync(); [color=var(--ds-text-subtlest, #505F79) !important]18 if (returnCode != DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS) [color=var(--ds-text-subtlest, #505F79) !important]19 { [color=var(--ds-text-subtlest, #505F79) !important]20 USER_LOG_ERROR( [color=var(--ds-text-subtlest, #505F79) !important]21 "setting high power mode failed, error code: 0x%08X", returnCode [color=var(--ds-text-subtlest, #505F79) !important]22 ); [color=var(--ds-text-subtlest, #505F79) !important]23 return DJI_ERROR_SYSTEM_MODULE_CODE_UNKNOWN; [color=var(--ds-text-subtlest, #505F79) !important]24 }
auto returnCode = DjiPowerManagement_Init(); [color=var(--ds-text-subtlest, #505F79) !important]2 [color=var(--ds-text-subtlest, #505F79) !important]3 if (returnCode != DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS) [color=var(--ds-text-subtlest, #505F79) !important]4 { [color=var(--ds-text-subtlest, #505F79) !important]5 USER_LOG_ERROR("could not init, error code: 0x%08X", returnCode); [color=var(--ds-text-subtlest, #505F79) !important]6 return DJI_ERROR_SYSTEM_MODULE_CODE_UNKNOWN; [color=var(--ds-text-subtlest, #505F79) !important]7 } [color=var(--ds-text-subtlest, #505F79) !important]8 [color=var(--ds-text-subtlest, #505F79) !important]9 auto callback_val = [](E_DjiPowerManagementPinState pinState) -> T_DjiReturnCode [color=var(--ds-text-subtlest, #505F79) !important]10 { [color=var(--ds-text-subtlest, #505F79) !important]11 std::cout << "Got pin state from callback " << pinState << "\n"; [color=var(--ds-text-subtlest, #505F79) !important]12 return DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS; [color=var(--ds-text-subtlest, #505F79) !important]13 }; [color=var(--ds-text-subtlest, #505F79) !important]14 [color=var(--ds-text-subtlest, #505F79) !important]15 DjiPowerManagement_RegWriteHighPowerApplyPinCallback(callback_val); [color=var(--ds-text-subtlest, #505F79) !important]16 [color=var(--ds-text-subtlest, #505F79) !important]17 returnCode = DjiPowerManagement_ApplyHighPowerSync(); [color=var(--ds-text-subtlest, #505F79) !important]18 if (returnCode != DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS) [color=var(--ds-text-subtlest, #505F79) !important]19 { [color=var(--ds-text-subtlest, #505F79) !important]20 USER_LOG_ERROR( [color=var(--ds-text-subtlest, #505F79) !important]21 "setting high power mode failed, error code: 0x%08X", returnCode [color=var(--ds-text-subtlest, #505F79) !important]22 ); [color=var(--ds-text-subtlest, #505F79) !important]23 return DJI_ERROR_SYSTEM_MODULE_CODE_UNKNOWN; [color=var(--ds-text-subtlest, #505F79) !important]24 }
This will run with no errors, but it does not change the voltage of the pin. I also ran the power mode change application:
```
| Start power management sample - you will see notification when aircraft power off |
```
But this has the function to change the power mode with:
static T_DjiReturnCode DjiTest_WriteHighPowerApplyPin(E_DjiPowerManagementPinState pinState) [color=var(--ds-text-subtlest, #505F79) !important]2 { [color=var(--ds-text-subtlest, #505F79) !important]3 //attention: please pull up the HWPR pin state by hardware. [color=var(--ds-text-subtlest, #505F79) !important]4 return DJI_ERROR_SYSTEM_MODULE_CODE_SUCCESS; [color=var(--ds-text-subtlest, #505F79) !important]5 }
How are we supposed to enable high power mode? How do we pull up the HWPR pin?
| 
lvl.1