Programming Connector Adapter End User Manual

Schematic

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pretty simple schem, should note that passthroughs have dedicated ground, separate from board ground, so if you want to probe the passthrough’s ground, use the test points.

Connectors are labelled with silkscreen to indicate what they’re used for

TELEM_PT1 & TELEM_PT2
- telemetry passthrough connectors
- connect this board between two devices by connecting TELEM_PT1 & TELEM_PT2 to different boards using a 1:1 6pin JST-GH harness
CAN/I2C_PT1 & CAN/I2C_PT2
- CAN/I2C passthrough connectors
- connect this board between two devices by connecting CAN/I2C_PT1 & CAN/I2C_PT2 to different boards using a 1:1 4pin JST-GH harness
DEBUG
- DEBUG connector, connects to a board’s 6pin JST-GH debug connector with a 1:1 harness, following WARG’s standard STM32 Programming Connector Standard
STLINK_V2
- Connects to an STLINK_V2 with header cables
- Connect the DEBUG connector to the board you’re debugging, then plug the header cables for the STLINK into the connector with a 1:1 pairing
- Pins are not labelled, but pin 1 (top right) is NRST, follow the pinout on the STLINK accordingly

STLINK_V3 mini
- Connects to an STLINK_V3 mini with the given cable
- Connect the DEBUG connector to the board you’re debugging, then connect the STLINK cable to the STLINK_V3 mini
- Use the key on the board’s connector to determine connector direction

I2C pullup resistors
- if you are using the CAN/I2C_PT1 & CAN/I2C_PT2 connectors for I2C, solder on 10k resistors onto the R1 & R2 pads
NRST button
- press this button to reset the MCU to default state (i think that’s what NRST does)
CAN termination
- this is a latching switch, pressing it will terminate the CAN line by connecting it to a 120ohm resistor