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Project Zero : The MCU (Programmer) To begin the design and creation of the project I worked on the base board of the design.. The Microcontroller, an Atmega 2560 was chosen to form the programmer and interface to the whole system primarily because of its large pin count and also I happened to have a few left over from a previous project. The Atmega is configured to run from its internal 8Mhz oscillator and to also output this out the CLKOUT pin so that later on this can be used to provide the system clock to the Z80, this is switched with a GPIO that can be used for single stepping support via a 74AC157 Logic gate....

Enabling CAN Bus on the Beaglebone Green by SeeedStudio Normally when I look to enable the CAN bus on the beaglebone black I have always followed the first guide I find online, however with the Beaglebone Green it comes with a newer debian image that does not support most of the documented methods of enabling CAN Bus (from around 2013). Modprobe We need to load the appropriate kernal drivers, this can be achieved by :...

Setting up Tivaware with GCC under CCS6 For a upcoming project I have designed in a TI TM4C123GH6PM, which is part of the Tiva lineup of ARM core processors. Naturally i would prefer to develop with the GCC compiler toolchain rather than the TI compiler, so this is a rough guide with notes for how i converted the given USB Device example code to use the GCC compiler instead. Compiler settings First, as normal, import the example project into CCS and build and test to ensure it works on the TI compiler first....

I have been following Veronica, a 6502 based computer being built by Quinn Dunki over at Blondihacks since the projects beginning in late 2011. Recently when sorting through my stock of collected parts I realized had almost all of the the required parts on hand. Whenever people talk about what they learned to program on it tends to come back to a few main chips, namely the 6502,z80 and the 6800....

DELL Server Power Supply AA233300 repair These power supplies are available under a number of different model numbers / brands. However they are all really the same (only minor mechnical outside differences). This is great for us as it means that we can use them to repair other models if needed. The DS550-3 The DS550-3 is the actual manufacturers model number for this supply. It was manufactuered by Emerson, However it appears that the same supply is also manufactured by Artesyn Embedded Technologies....