czwartek, 9 lutego 2012

Some initial evaluation

So today I've received a package from Intersil containing their ISL26134 Evaluation Board. As I have not read the application note earlier I didn't knew what to expect. Surprise was big, just look at the board:
Photo by Intersil.
So we have the full application of the ADC, with all four channels, internal and external reference voltage and all the configuration pins jumper-controlled - nice. But there is more! after a Si8441BB galvanic isolation there is a uC, an AT90USB162 AVR. Let's say that this part I've been expecting (as a maximum) but the uC ISP pins are on a standard 6pin pin-header(!) and there is more - four switches, some LEDs, even an SPI port on a header... hey - is it an ADC or AVR evaluation board?

Tomorrow I plan to do something more than installing the software on my PC. First let's test the board, second let's test the AVR. I hope I can get to it's software (for backup) and then try to reprogram it to use the evaluation board for some future fun.

środa, 8 lutego 2012

Amiga Kickstart switcher installation

So let's get starting! First with a Kickswitch installation in my Amiga 500. 
I've recently bought an Kickstart switcher by random chance. Instead of buying a fully tested one I've decided to go for a untested one, that I've found on allegro. It was a set with a A500 rev 6a motherboard in a not-very-mint condition but still everything seemed to be in place, so there I was:


After checking the electrical connections of the switch I delicately pryed the old Kickstar ROM from my Amiga and inserted the connector into the socket. I have insulated everithing with some foamy stuff used for packing electronics (after checking that it is not conductive).


First boot - Kickstart 1.3:


Reboot and switch the kick - Kickstart 2.05 (I somehow expected that one):

 

So... I got a Kickstart switcher up and running for half the price of a regular (fully tested and/or new). Next step - reflash the Kick from 2.05 to 3.1. I hope to get my hands on some eeprom programmer at work.

Let's get started.

Soooo, it seems that I'm starting yet another blog, this time with a plan to keep a strict schedule of uploads and posts ;-).