Clarify TPI connections for USBtiny.

git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1413 81a1dc3b-b13d-400b-aceb-764788c761c2
2018-01-14 20:30:30 +00:00 · 2018-01-14 20:30:30 +00:00 · b46c10e661
parent 2b9108b58f
commit b46c10e661
1 changed files with 4 additions and 0 deletions
--- a/avrdude.conf.in
+++ b/avrdude.conf.in
@ -866,6 +866,10 @@ programmer
  #usbproduct = "";
 ;

+# USBtiny can also be used for TPI programming.
+# In that case, a resistor of 1 kOhm is needed between MISO and MOSI
+# pins of the connector, and MISO (pin 1 of the 6-pin connector)
+# connects to TPIDATA.
 programmer
  id    = "usbtiny";
  desc  = "USBtiny simple USB programmer, https://learn.adafruit.com/usbtinyisp";