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Hardware documentation jornada700

From JLiMe.com

Contents

Introduction

On this page we show the hardware of the HP Jornada 700-series.

Differences between models

The only difference is memory and appereance.
HP Jornada 710 got 32MB Ram and got a bluish shell.
HP Jornada 720 got 32MB Ram and got a bluish shell
HP Jornada 728 got 64MB Ram and got a silver metallic shell.

Flashrom

(information regarding flashroms can be found here)
HP developed an very limited number of flashroms for their HP Jornada 700-series. Since it was obvious that no more attempt would be made by HP there were some private initiaters that started making new ones. The latest attempt was by Jan P. that in early 2008 had the first batch ready (consisting of 4-5 boards). It contained 128MB SDRAM and 64MB FLASHROM.
Due to unseen events no more flashboards have been created. Jan reported that he had parts enough for building 20 more flashboards as late as in 2010. Currently the bootloader Blob works fine, but its old. An attempt to make u-boot work on the board is taking place, and so far most stuff works. The pricing for the flashboard is not set, but will likely end up in the range of $100+.

Hardware inside the HP Jornada 700-series

CPU : SA1100 with an additional SA1111
Graphics : Epson s1d13506
Input : Touchscreen and Keyboard
Extensions : Compactflash and PCMCIA
Sound : ....

Hardware modifications

Official Datasheets

In order to be able to program the chips you will need the appropriate datasheet which describes the communication.

SA1100 CPU
SA1111 CPU
Epson s1d13506 lcd

Handmade documents

Some useful documents.

HP Jornada 720 Hardware Configuration by Jca
Discussion over the suspend process by Cmonex