Category Archive: Update

Nov 21

Student Unmanned Aerial Systems

I was hoping that going back to school would free up some time to continue working on projects and add to the site, however that has not been the case. Things have gotten actually gotten more hectic. I’ve got my normal school workload with senior design thrown on top. Speaking of which, my senior design …

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Sep 10

SD Progress

Command Packet

I’ve found it difficult to find a 100% complete picture of the SD Card SPI protocool.  However, this is what I’ve pieced together and has managed to allow me to communicate with a Sandisk card I had sitting around.  Overall progress has been slow as I’ve been occupied with other important things.  I have however …

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Aug 25

SPI and SD Cards

Invalid MOSI

Over the past week I’ve been working on communicating with an SD Card using my custom SPI Controller. I’ve uncovered some bugs in the controller and begun having some success in communicating with the SD Card. A combination of unique SD Card behavior and a clock phasing bug meant I spent far too long debugging …

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