Tigard v1.1

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Tigard v1.0 Production Run

Move USB C RC circuit further away from connector

First small run revision

We had the first small run of boards made from this revision.

Status: PROVEN

Changes from v0.0 include:

• Better user documentation in the README
• Added a pull-down resistor for VTGT LED MOSFET (#6)
• Cleaned up all the VCC/VTGT/VREF/etc naming to use "VTGT" (#9)
• Improved the mode switch labeling (#8)
• Used a variety of colors for the LEDs (#7)
• Changed header wiring to make more sense (#1, #2, #3)
• Added a bitmagic logic analyzer port (#4)
• Added a cheatsheet to the back of the board (#10)
• Revised mode switch to support JTAG and SWD on the CORTEX header (#5)
• Added a solder jumper that allows bypassing the 330-ohm SWD hack resistor for I2C
• Switched to M3 mounting holes
• Re-ordered some level shifter inputs/outputs for more convenient routing
• Improved switch footprints (pin 1 was incorrect, and didn't have a square pad)
• Fixed some metric/imperial grid issues

First prototype revision

Status: PROVEN

Known issues:

• I2C header, resistors, and diodes don't work and shouldn't be populated
• Missing pull-down resistor for reference LED mosfet

The prototype boards for this revision were produced by JLCPCB and assembled by @esden