http://dev.frozeneskimo.com/ 2010-09-05T17:05:59-05:00 http://dev.frozeneskimo.com/ http://dev.frozeneskimo.com/lib/images/favicon.ico text/html 2009-12-01T12:07:41-05:00 http://dev.frozeneskimo.com/resources/home?rev=1259690861&do=diff Tutorials * Setting up the ARM-GCC Toolchain on Windows * Adapting Code::Blocks IDE for ARM Development Hardware Tools * JTAG Wiggler Clone * Xilinx JTAG Download Cable * miniLA Build * USBasp Build Links * Digital Electronics Sites * Component Suppliers * Sub-$150 Development FPGA Boards text/html 2007-11-23T06:27:01-05:00 http://dev.frozeneskimo.com/resources/jtag_wiggler_clone?rev=1195820821&do=diff JTAG, is an interface (and standard) developed to easily debug embedded systems. However, you need a JTAG emulator to connect to this interface, and commercial versions are pretty pricey. One emulator, called the Wiggler by Macraigor, has a very simple design, and uses the parallel port. People have cloned the design of this Wiggler and posted schematics online (there are many out there). In addition, Macgraigor has free software called OCDRemote to operate these Wigglers. At one point, Macgrai… text/html 2007-11-24T07:29:51-05:00 http://dev.frozeneskimo.com/resources/minila_build?rev=1195910991&do=diff Sometime 2006/08- miniLA assembled I finally got around to assembling the miniLA. Every component was soldered (by hand) using my cheap $30 soldering station. With the power plugged in a green light shows (good sign!) but I have yet to build the Xilinx JTAG download cable (as this miniLA site mentions) to actually flash it. text/html 2007-12-05T01:28:27-05:00 http://dev.frozeneskimo.com/resources/usbasp_build?rev=1196839707&do=diff The computer I’m currently on (intel mac mini) doesn’t have a parallel port, so I can’t use the STK-200 style AVR-ISP to program/flash AVR chips. So, looking for the USB alternative, I stumbled across the USBasp. From the site, “USBasp is a USB in-circuit programmer for Atmel AVR controllers. It simply consists of an ATMega48 or an ATMega8 and a couple of passive components. The programmer uses a firmware-only USB driver, no special USB controller is needed.” text/html 2007-11-23T06:26:45-05:00 http://dev.frozeneskimo.com/resources/xilinx_jtag_download_cable?rev=1195820805&do=diff The main thing holding me back from using my miniLA logic analyzer was the hardware to flash the CPLD. The miniLA website suggests building the free Xilinx JTAG download cable, and flashing through the iMPACT software. I decided to stick with this fail-proof method (the JTAG dongle would also be useful for future CPLDs/FPGAs).