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One of the new features of the beta EnergiaNG is that fact that it is now using the standard Arduino 1.6.x IDE. Unfortunately, it doesn't look like it is ready to work as a boards manager package with the standard Arduino IDE. Energia/TI likes their branding and it seems they want to keep TI boards and Arduino board from ever meeting in the same program. At the same time, I noticed a few things that are missing and instead of trying to push those into Energia. I decided to fork the tivac-core and make the changes there. I also moved away from the proprietary dslite uploader in favor of
I was inspired a while back by the simplicity of the FFT application written by Shane Ormond and featured on the 43oh blog. It was easy to duplicate and I've made a few changes, additions, and such that seemed worth documenting. I didn't have a signal generator other than the 1kHz square wave on my oscilloscope and some clunky code that I wrote for a microcontroller so I ordered an inexpensive AD9850 and hooked it up to a FR6989 LP so I could use the LCD to display frequency. I've been pleased with the AD9850 and it is hard to beat it for the price. The sine wave is more than sufficient