MobileRead Forums - View Single Post - Help with unbricking kindle via serial port

Siliverst · 11-18-2010, 03:13 AM

I would have used a homemade adapter on a chip FT232RL as advised by Sir Alex.
1.8V internal voltage from the Kindle is connected to pin 4 (VCCIO) FT232RL.
When using 5V TTL, you may damage the serial port of the Kindle.
Datasheet for FT232RL - http://easyelectronics.ru/datasheet/FT232RL_V202.pdf
scheme of the adaprer similar to this one: http://dorkbotpdx.org/blog/feurig/a_...gramming_board
But you need to connect to the device only: GND, TXD, RXD, and 1.8V (to Pin 4 FT232RL) from Kindle.
You can use any external voltage 1.8V, connected to GND & VCCIO of the FT232RL.

11-18-2010, 03:13 AM	#8
Siliverst Junior Member Posts: 3 Karma: 12 Join Date: Nov 2010 Device: Kindle3 WiFi	I would have used a homemade adapter on a chip FT232RL as advised by Sir Alex. 1.8V internal voltage from the Kindle is connected to pin 4 (VCCIO) FT232RL. When using 5V TTL, you may damage the serial port of the Kindle. Datasheet for FT232RL - http://easyelectronics.ru/datasheet/FT232RL_V202.pdf scheme of the adaprer similar to this one: http://dorkbotpdx.org/blog/feurig/a_...gramming_board But you need to connect to the device only: GND, TXD, RXD, and 1.8V (to Pin 4 FT232RL) from Kindle. You can use any external voltage 1.8V, connected to GND & VCCIO of the FT232RL. Last edited by Siliverst; 11-18-2010 at 03:18 AM.