Blog :: Pilsdon

From Grahamsoft Labs

This is the development blog for Pilsdon..

[edit] March '09

15th

I spent the whole weekend working on project pilsdon. To date I have got the Ethernet, USB, LCD and a few operator and customer buttons working. A lot of time has been spent getting the LCD working, configured in 4 bit mode it has caused a lot of issues. 4 bit requires it to be clock twice and 4 bits shifted so it is ready. Turns out some of the code I used was wrong which wasted a lot of time because I thought it wasb't working because of something I did wrong. Next to do it get the real time clock up and running.

[edit] July '08

7th

This is the first blog entry so I will bring you up to speed with the progress of this project. I have been spending a lot of my time creating the hardware platform of the project which has resulted in reading many datasheets. I have already come across compatibility issues which caused a lot of head scratching. The issue is that both the Mulimedia card and the Ethernet controller uses the SPI interface which itself isn’t an issue, but the chip that maintains date and time uses the I2C interface which uses the same I/O pins on the microcontroller as the SPI interface.