From 30bbfe92b35ed7dddb78b02dfe25cecffd05acbc Mon Sep 17 00:00:00 2001 From: tmk Date: Thu, 19 Jun 2014 21:14:25 -0700 Subject: [PATCH] Updated FAQ (markdown) --- FAQ.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/FAQ.md b/FAQ.md index a411c7c6f1..113948c0ef 100644 --- a/FAQ.md +++ b/FAQ.md @@ -181,8 +181,10 @@ Pressing any key during sleep should wake host. Arduino leonardo and micro have **ATMega32U4** and can be used for TMK, though Arduino bootloader may be a problem. -## Using PF4-7 pins of USB AVR(ATMega32U* or AT90USB*)? -You need to set JTD bit of MCUCR yourself to use PF4-7 as GPIO. Those pins are configured to serve JTAG function by default. If you are using Teensy this isn't needed. Teensy is shipped with JTAGEN fuse bit unprogrammed to disable the function. +## Using PF4-7 pins of USB AVR? +You need to set JTD bit of MCUCR yourself to use PF4-7 as GPIO. Those pins are configured to serve JTAG function by default. MCUs like ATMega*U* or AT90USB* are affeteced with this. + +If you are using Teensy this isn't needed. Teensy is shipped with JTAGEN fuse bit unprogrammed to disable the function. See this code. ```