Archive for the ‘OpenWRT’ Category

About wait states

Monday, March 19th, 2007

For some time I’m struggling with the external Interface of ASUS WL-HDD Router models.

I’m now trying to connect a T6963 based LCD. This failed because of the speed of the external bus. So I searched the linux code and found the initialization in sbmips.c under linux/arch/mips32/bcm47xxx/sbmips.c. (more…)

the LCD module

Monday, December 11th, 2006

So here you can find the current testing version of my module. It can be used to display some text but it has still some bugs ;-) (more…)

LCD another try?

Saturday, December 9th, 2006

Today i successfully triggered the /CS line and now I know it’s working. In measurements before my oscilloscope was to slow to display the changes on the /CS line… (more…)

Interfacing an LCD

Thursday, December 7th, 2006

Here I describe how to interface a Character LCD based on HD47780 or compatible controllers. (more…)

The external Interface

Wednesday, December 6th, 2006

When you disassemble your unit you will find some solder pads right behind the IDE connector. This thread at www.openwrt.org shows the pinout and some pics and howto attach a UART-Chip there.

(more…)