Mini Mainboard - Revision history

Davefiddes: /* Hardware detection */ Add Tesla M3 FDU variant updating expected voltages and ADC readings to reflect 5.0 V supply

2026-03-06T13:37:16Z

Hardware detection: Add Tesla M3 FDU variant updating expected voltages and ADC readings to reflect 5.0 V supply

← Older revision		Revision as of 13:37, 6 March 2026
Line 271:		Line 271:
	\|Not Mini-MB based, upper voltage 5.0V		\|Not Mini-MB based, upper voltage 5.0V
	\|-		\|-
	\| Tesla M3		\| Tesla M3 RDU
	\|47k		\|47k
	\|3k3		\|3k3
Line 303:		Line 303:
	\|		\|
	\|-		\|-
	\| -		\| Tesla M3 FDU
	\|47k		\|47k
	\|5k6		\|5k6
	\|0.56 V		\|0.53 V
	\|~~700~~		\|660
	\|~~679~~-~~721~~		\|641-680
	\|		\|Not Mini-MB based, upper voltage 5.0V
	\|-		\|-
	\| -		\| -

2025-10-27T16:03:07Z

Added board identifier value for Jaguar iPace inverter board.

← Older revision		Revision as of 16:03, 27 October 2025
Line 279:		Line 279:
	\|Not Mini-MB based, upper voltage 5.0V		\|Not Mini-MB based, upper voltage 5.0V
	\|-		\|-
	\| -		\| Jaguar iPace
	\|47k		\|47k
	\|3k9		\|3k9
Line 285:		Line 285:
	\|504		\|504
	\|489-519		\|489-519
	\|		\|Not Mini-MB based, upper voltage 5.0V
	\|-		\|-
	\|Nissan Leaf Gen3		\|Nissan Leaf Gen3

2024-12-16T18:10:53Z

Added Tesla M3

← Older revision		Revision as of 18:10, 16 December 2024
Line 267:		Line 267:
	\|2k7		\|2k7
	\|0.27 V		\|0.27 V
	\|~~357~~		\|337
	\|327-347		\|327-347
	\|~~Upper~~ voltage 5.0V		\|Not Mini-MB based, upper voltage 5.0V
	\|-		\|-
	\| -		\| Tesla M3
	\|47k		\|47k
	\|3k3		\|3k3
	\|0.35 V		\|0.33 V
	\|~~431~~		\|407
	\|~~418~~-~~444~~		\|395-419
	\|		\|Not Mini-MB based, upper voltage 5.0V
	\|-		\|-
	\| -		\| -

2024-12-16T18:07:14Z

Added MG board

← Older revision		Revision as of 18:07, 16 December 2024
Line 261:		Line 261:
	!ADC		!ADC
	!+/-3% range		!+/-3% range
			!Remark
	\|-		\|-
	\| -		\| MG
	\|47k		\|47k
	\|2k7		\|2k7
	\|0.29 V		\|0.27 V
	\|357		\|357
	\|~~346~~-~~368~~		\|327-347
			\|Upper voltage 5.0V
	\|-		\|-
	\| -		\| -
Line 275:		Line 277:
	\|431		\|431
	\|418-444		\|418-444
			\|
	\|-		\|-
	\| -		\| -
Line 282:		Line 285:
	\|504		\|504
	\|489-519		\|489-519
			\|
	\|-		\|-
	\|Nissan Leaf Gen3		\|Nissan Leaf Gen3
Line 289:		Line 293:
	\|598		\|598
	\|580-616		\|580-616
			\|
	\|-		\|-
	\| Renault Zoe Gen1		\| Renault Zoe Gen1
Line 296:		Line 301:
	\|643		\|643
	\|624-662		\|624-662
			\|
	\|-		\|-
	\| -		\| -
Line 303:		Line 309:
	\|700		\|700
	\|679-721		\|679-721
			\|
	\|-		\|-
	\| -		\| -
Line 310:		Line 317:
	\|831		\|831
	\|806-856		\|806-856
			\|
	\|-		\|-
	\| -		\| -
Line 317:		Line 325:
	\|905		\|905
	\|878-932		\|878-932
			\|
	\|-		\|-
	\| -		\| -
Line 324:		Line 333:
	\|977		\|977
	\|948-1006		\|948-1006
			\|
	\|-		\|-
	\| -		\| -
Line 331:		Line 341:
	\|1067		\|1067
	\|1035-1099		\|1035-1099
			\|
	\|-		\|-
	\| -		\| -
Line 338:		Line 349:
	\|1154		\|1154
	\|1119-1189		\|1119-1189
			\|
	\|-		\|-
	\| -		\| -
Line 345:		Line 357:
	\|1338		\|1338
	\|1298-1378		\|1298-1378
			\|
	\|}		\|}
	[[Category:OpenInverter]] [[Category:Inverter]]		[[Category:OpenInverter]] [[Category:Inverter]]

2024-10-05T09:12:39Z

Hardware detection

2024-02-26T09:12:32Z

Hardware detection

← Older revision		Revision as of 09:12, 26 February 2024
Line 338:		Line 338:
	\|1154		\|1154
	\|1119-1189		\|1119-1189
			\|-
			\| -
			\|47k
			\|12k
			\|1.08 V
			\|1338
			\|1298-1378
	\|}		\|}
	[[Category:OpenInverter]] [[Category:Inverter]]		[[Category:OpenInverter]] [[Category:Inverter]]

2023-11-19T20:51:08Z

Pin Header Summary

2023-10-21T19:47:31Z

Added an image for the board address voltage divider

← Older revision		Revision as of 19:47, 21 October 2023
Line 251:		Line 251:

	We chose to assign a secondary meaning to the OUT_BRAKE pin because its level can be measured by the ADC. So OUT_BRAKE can be brought to a certain voltage level with a high impedance voltage divider. The voltage level encodes the hardware variant. It will not disturb normal operation because its total resistance is chosen at least one order of magnitude larger than the output impedance of OUT_BRAKE, which is about 270 Ohms.		We chose to assign a secondary meaning to the OUT_BRAKE pin because its level can be measured by the ADC. So OUT_BRAKE can be brought to a certain voltage level with a high impedance voltage divider. The voltage level encodes the hardware variant. It will not disturb normal operation because its total resistance is chosen at least one order of magnitude larger than the output impedance of OUT_BRAKE, which is about 270 Ohms.
			[[File:Board address voltage divider.png\|thumb]]
	A the upper voltage divider resistor R1 is connected to the "5V" rail which actually sits at 5.3V. R2 is connected to GND		A the upper voltage divider resistor R1 is connected to the "5V" rail which actually sits at 5.3V. R2 is connected to GND
	{\| class="wikitable"		{\| class="wikitable"

2023-10-08T18:09:27Z

PWM outputs

← Older revision		Revision as of 18:09, 8 October 2023
Line 36:		Line 36:

	There are 6 internal PWM outputs on JP1. The outputs are 3.3V, 16mA. Frequency is configurable to 4.4, 8.8 or 17.6kHz.		There are 6 internal PWM outputs on JP1. The outputs are 3.3V, 16mA. Frequency is configurable to 4.4, 8.8 or 17.6kHz.
	# PWM Top phase 1 (Pin 5)		# PWM Top phase 1 (Pin 6)
	# PWM Bottom phase 1 (Pin 6)		# PWM Bottom phase 1 (Pin 7)
	# PWM Top phase 2 (Pin 7)		# PWM Top phase 2 (Pin 8)
	# PWM Bottom phase 2 (Pin 8)		# PWM Bottom phase 2 (Pin 9)
	# PWM Top phase 3 (Pin 9)		# PWM Top phase 3 (Pin 10)
	# PWM Bottom phase 3 (Pin 10)		# PWM Bottom phase 3 (Pin 11)
	There is a configurable dead time between top and bottom outputs.		There is a configurable dead time between top and bottom outputs.

2023-10-08T18:07:22Z

Digital inputs

← Older revision		Revision as of 18:07, 8 October 2023
Line 14:		Line 14:
	As opposed to earlier mainboards the current sensor inputs are now designed for 5V input, i.e. 2.5V @ 0A. This interfaces directly with most current sensors that OEMs use and also with Melexis chips, LEM HTFS and Tamura L06P current sensors.		As opposed to earlier mainboards the current sensor inputs are now designed for 5V input, i.e. 2.5V @ 0A. This interfaces directly with most current sensors that OEMs use and also with Melexis chips, LEM HTFS and Tamura L06P current sensors.
	== Digital inputs ==		== Digital inputs ==
	There are external 8 digital inputs on JP2. A voltage of >7V is interpreted as a logical 1 (high). They all have a cutoff frequency of 40Hz.		There are external 7 digital inputs on JP2. A voltage of >7V is interpreted as a logical 1 (high). They all have a cutoff frequency of 40Hz.
	# Cruise Control (Pin 4). This input sets the current motor speed as the set point for cruise control. Cruise control is disabled with the Brake input. In SPI mode: MOSI		# Cruise Control (Pin 4). This input sets the current motor speed as the set point for cruise control. Cruise control is disabled with the Brake input. In SPI mode: MOSI
	# Start (Pin 5). This input starts the inverter operation.		# Start (Pin 5). This input starts the inverter operation.