Power Distribution

Hardware Validation - Rev 1

	Validation Steps	Status	Blockers
Outputs	Verify Operation of Load switches using bts_load_switch driver Adhiraj Singh Verify Operation of Outputs using Output Config Adhiraj Singh Verify current readings Verify multiplexor with current readings Trigger Undervoltage/overvoltage conditions, see if it triggers interrupt (do after everything else in case board explodes)	IN PROGRESS
Output Read verification	Verify Outputs are successfully read in main loop	BLOCKED	Need gpio expanders verified
Lights FSM verification	Verify by setting can messages internally Verify by sending can messages over PEAK CAN	BLOCKED	Need all previous verified
Power FSM Verification	Verify by setting can messages internally Verify by sending can messages over PEAK CAN	BLOCKED	Need all previous verified

Hardware Validation - Rev 2

	Validation Steps	Status	Blockers
IO expander	Verify PCA expanders are able to communicate with STM PCA 1 (0x24) PCA 2 (0x26)
Outputs	Verify outputs all enable/disable as expected SOLAR_SENSE_1 SOLAR_SENSE_2 PEDAL STEERING LEFT_TURN RIGHT_TURN DRL_LIGHT BRAKE_LIGHT CENTER_CONSOLE BMS_DCDC MCI BPS_LIGHT SPARE_12V_1 SPARE_12V_2 BMS_AUX DRIVER_FAN REAR_CAM_LCD SPARE_5V_DCDC TELEMETRY SPARE_5V_AUX
Output isense read	Verify Mux select allows for output current values to be read: SOLAR_SENSE_1 SOLAR_SENSE_2 PEDAL STEERING LEFT_TURN RIGHT_TURN DRL_LIGHT BRAKE_LIGHT CENTER_CONSOLE BMS_DCDC MCI BPS_LIGHT SPARE_12V_1 SPARE_12V_2 BMS_AUX DRIVER_FAN REAR_CAM_LCD SPARE_5V_DCDC TELEMETRY SPARE_5V_AUX
AUX Valid pins	Ensure AUX valid low when no AUX supply connected AUX_VALID_1 AUX_VALID_2 Ensure AUX Valid high when aux is connected AUX_VALID_1 AUX_VALID_2
DCD Valid pins	Ensure DCDC valid low when no DCDC supply connected DCDC_VALID_1 DCDC_VALID_2 Ensure AUX Valid high when DCDC is connected DCDC_VALID_1 DCDC_VALID_2

Output Config and Power FSM Validation

For the outputs, CAN TX indicates a message we expect to see, LOG indicates an expected printed message, OUTPUT indicates the expected output group to be set

	Validation Steps	Initial Conditions	Outputs
Outputs correct for each output group	Check for each power state, ensure only the correct outputs are set POWER_FSM_OUTPUT_OFF POWER_FSM_OUTPUT_ON POWER_FSM_OUTPUT_DRIVE POWER_FSM_OUTPUT_FAULT LIGHTS_OUTPUT_BPS LIGHTS_OUTPUT_LEFT LIGHTS_OUTPUT_RIGHT LIGHTS_OUTPUT_HAZARDS	N/A	See Power Distribution Design doc for expected outputs
FSM Initial State	On startup, output group enabled is POWER_FSM_OUTPUT_OFF	Initial Power On	Initial state is Power FSM OFF (BMS and Centre Console Outputs Enabled) LOG: STATE = POWER_OFF
POWER_OFF to TRANSMIT_BMS_CLOSE_RELAYS	Both centre console messages EE_CC_PWR_CTL_EVENT_BTN_AND_BRAKE and EE_CC_PWR_CTL_EVENT_BTN should cause a transition to TRANSMIT_BMS_CLOSE_RELAYS. After 3sec with no relay message, we should return to POWER_OFF	From POWER_OFF send cc_power_control_power_event == EE_CC_PWR_CTL_EVENT_BTN or BTN_AND_BRAKE	CAN TX: relay_request_set_relays == EE_RELAY_STATE_CLOSED LOG: STATE = BMS_RELAYS after 3 seconds LOG: STATE = POWER OFF OUTPUT: POWER_OFF
POWER_OFF TO POWER_ON	If PD receives a PWR_CTL_EVENT_BTN and then a relays_closed state from BMS, we should transition to POWER_ON	From POWER_OFF send cc_power_control_power_event == EE_CC_PWR_CTL_EVENT_BTN and battery_relay_info_state == EE_RELAY_STATE_CLOSED	CAN_TX: power_info_power_state == EE_POWER_ON_STATE LOG: Transitioned to DRIVE STATE OUTPUT: POWER_ON
POWER_ON to POWER_OFF	Both centre console messages EE_CC_PWR_CTL_EVENT_BTN_AND_BRAKE and EE_CC_PWR_CTL_EVENT_BTN should cause a transition to POWER_OFF	From POWER_ON, send either of the two PWR_CTL_EVENTS to the controller board	CAN_TX: power_info_power_state == EE_POWER_OFF_STATE relay_request_set_relays == EE_RELAY_STATE_OPEN LOG: Transitioned to OFF STATE OUTPUT: POWER_OFF
POWER_OFF to POWER_DRIVE through POWER_ON	A successful transition to POWER_DRIVE from POWER_OFF requires the following in order: EE_CC_PWR_CTL_EVENT_BTN received battery_relay_info_state == EE_RELAY_STATE_CLOSED received EE_CC_PWR_CTL_EVENT_BTN	Start in POWER_OFF, send 3 messages described	CAN_TX: power_info_power_state == EE_POWER_OFF_STATE power_info_power_state == EE_POWER_OFF_STATE
POWER_DRIVE to POWER_OFF