Rabid Prototypes Tau, Zero compatible, and fastLED?

[ShreddinPB]

Hey guys, I backed a kickstarter which got me a couple Rabid Prototypes TAU boards. They are Arduino Zero compatible, so much so that if I have the TAU set in the boards manager and get board info, it reports as a Zero.
The problem I am having is I am trying to do a FastLED project with it, and it wont compile for the TAU. If I switch the board manager to Zero, it compiles.
The error I get is this.

fastpin.h:206:2: error: static assertion failed: Invalid pin specified

static_assert(validpin(), "Invalid pin specified");

I tried every pin and I get the same error.
From what I have googled, this means there is no board definition for the tau in FastLED.
I found this thread

FastLED Error Compiling - static_assert(validpin(), "Invalid pin specified");

(yes thats me at the end) that says you just need to

add a section defining the pin/port mappings for your board

I assume that has to do with adding a section like so

#elif defined(AVR_ATmega1284P)

I guess my main question is, how do I find out what processor definition the TAU is?
Can I just copy the one from the zero and make it work for the tau?
Where is the file that defines the zero?

Thanks!

[westfw]

how do I find out what processor definition the TAU is?

Turn on the verbose option for compilation in the Arduino preferences, then copy the compile dialog and see what it defines.
For example, compiling for a genuine zero produces:

/Applications/arduino/Arduino-1.8.2.app/Contents/Java/portable/packages/arduino/tools/arm-none-eabi-gcc/4.8.3-2014q1/bin/arm-none-eabi-g++
  -mcpu=cortex-m0plus -mthumb -c -g -Os -w -std=gnu++11 -ffunction-sections
  -fdata-sections -fno-threadsafe-statics -nostdlib --param max-inline-insns-single=500
  -fno-rtti -fno-exceptions -MMD -DF_CPU=48000000L
  -DARDUINO=10802 -D[color=red]ARDUINO_SAMD_ZERO[/color] -DARDUINO_ARCH_SAMD -D__SAMD21G18A__
  -DUSB_VID=0x2341 -DUSB_PID=0x804d -DUSBCON '-DUSB_MANUFACTURER="Arduino LLC"'
 '-DUSB_PRODUCT="Arduino Zero"'
  "-I/Applications/arduino/Arduino-1.8.2.app/Contents/Java/portable/packages/arduino/tools/CMSIS/4.5.0/CMSIS/Include/"
  "-I/Applications/arduino/Arduino-1.8.2.app/Contents/Java/portable/packages/arduino/tools/CMSIS-Atmel/1.1.0/CMSIS/Device/ATMEL/"
  "-I/Applications/arduino/Arduino-1.8.2.app/Contents/Java/portable/packages/arduino/hardware/samd/1.6.15/cores/arduino"
  "-I/Applications/arduino/Arduino-1.8.2.app/Contents/Java/portable/packages/arduino/hardware/samd/1.6.15/variants/arduino_zero"
  "/Applications/arduino/Arduino-1.8.2.app/Contents/Java/portable/packages/arduino/hardware/samd/1.6.15/cores/arduino/WMath.cpp"
  -o "/var/folders/jz/5yb8f2hr8xjcpf0059bsfz4r0000gn/T/arduino_build_637127/core/WMath.cpp.o"

Where the part I've highlighted is what fastpin_arm_d21.h uses to define some pins.

Can I just copy the one from the zero and make it work for the tau?

Probably, if they are as compatible as you say... Or change the #if statement to include several symbols

#if defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_TAU)

[ShreddinPB]

Very helpful, thanks!!

[ShreddinPB]

For those of you that may go looking for this info,
it appears to be..

ARDUINO_SAMD_TAU