1. What is this?This is a brief description of how to use jflash under Linux.For programming Jornada 56x and Badge4 devices.2. How do I use it?To access the parallel port, first load the enclosed driver:	su	cd driver.2_2	./short_load	lsmod         -- you should see a module named 'short'Now go into the directory jflash (as a normal user).To read out the current contents of flash using the JTAG interfaceand write to a file:	jflash <filename> RTo write a new file to flash:	jflash <filename> WTo read flash and verify that it matches the binary contentsof a file:	jflash <filename> V3. Parallel port connector pinsThis is the standard parallel port pin configuration usedon the SA-1110 Development Kit:	Cable has 100 ohm series resistors in all lines.	Output pins (LPT driving):		LPT D0 Pin 2 and TCK		LPT D1 Pin 3 and TDI		LPT D2 Pin 4 and TMS	Input pin (SA-1110 board drives):		LPT Busy Pin 11 and TDO	Output pin		LPT Pin 14 and nTRST4. Jornada56x modifications4.1. JTAG connectorThe JTAG signals are accessible from the area of the PCBvisible after the cover over the CF slot is removed.With the 560 face down and the IR port pointing awayfrom you, you will see 7 circular dots in a verticalrow in the upper right of the visible PCB area.The signals on these pins are:	Edge of PCB	|-----------|	|1. Unknown |	|2. Ground  |	|3. TCK     |	|4. TMS     |	|5. nTRST   |	|6. TDO     |	|7. TDI     |	|-----------|	Side towards battery4.2 Vpp flash write enableWhen GPIO26 of the SA-1110 is 1, flash can be written.When 0, writing to flash is disabled (hopefully).5. Ipaq H3800 modificationsDefining CONFIG_SA1100_H3800 when compiling willproduce a version that works for the H3800.6. CreditsThis program is a very minor edit of the jflash utility availablefrom intel at:   http://www.intel.com/design/strong/swsup/downloads/SA1110JFlashKit_V12.htmwho is the original author of the code (although no copyright statements!).John AnkcornHP LaboratoriesPalo Alto, CAjca9/25/2002