Archive for May, 2007

Making good progres

Monday, May 28th, 2007

Things are going very well. After going over the datasheet for the ENC28J60 I am able to read and write to the control registers with SPI. Have still some questions about the Atmega168 External clock and Divide by 8 settings. But with a working piece of code and an osciloscope I can do some optimalisation.

ENC28J60 SPI

Creating a test-environment

Saturday, May 19th, 2007

uIP is working, but I like to get the ENC28J60 working with Bascom-AVR. Before, while testing, I removed the Atmega168 to be programmed in the STK500-board, but now I have made a small converter to work on my standard Kanda ICSP-programmer. And while programming it is also usefull to send information to the serial port. Used a Olimex-board just for the serial port. Programmer is on the SPI-MOSI, MISO, SCK, but no problems seen in combination with the ENC28J60.

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Tuxgraphics-board running uIP

Monday, May 14th, 2007

It is running, uIP on the tuxgraphics board. With some minor software-adjustments (like the connection of CS to the ENC28J60).

The open-source uIP TCP/IP stack provide TCP/IP connectivity to tiny embedded 8-bit microcontrollers, with maintained interoperability and RFC standards compliance. Written by Adam Dunkels.

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ENC28J60 and Atmega168

Saturday, May 12th, 2007

It is running, an ENC28J60 ethernetcontroller with an Atmega168. Have first tried things on breadboard using wire wrap, but after I have seen things working I decided to buy the cheap set at http://www.tuxgraphics.org Now it is running with C with a single packet HTML page, I would like to get it running with Bascom-AVR and hardware SPI. Have left the fuse bits untouched, but read somewhere in the documentation I have to change one bit (low fuse byte from 0×62 to 0×60). The CLKOUT of the ENC28J60 is feeding the clock of the Atmega168. The Atmega168 has been programmed with my STK500 kit, have to make an adapter from my AVRISP 10-pins connector to the 5-pins connector used on the tuxgraphics board.

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