Category Archives: ARM

Long time no post

It has been a while since I last posted. A lot and a little has happened in the meantime. I went on vacation to London and had a great time, but I have not made a huge amount of progress … Continue reading

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LSM303 bug fixed!

After several very frustrating days, I have found the root cause of my bad readings. It was not in the sensor or in its setup. It was in fact the the TWI/I2C driver code that I took from the ATMEL … Continue reading

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Woes with a LSM303DLHC

I have a Pololu 9 DOF IMU (version 2) that uses an LSM303DLLC for the magnetometer and accelerometer. With these two sensors you can create a tilt compensated compass. It was my plan to do exactly that to get heading … Continue reading

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Agoraphobic robot

I have been frustrated by a problem with my robot. Each time I would go outside to test, the robot’s processor would hang. I tried various tactics in getting to the bottom of the problem. The real bummer was that … Continue reading

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Writing to FLASH

You would think that writing to FLASH would not be such a big thing. But it took several┬ádays to accomplish. The first issue is that your reprogram code can’t live in the same FLASH as you want to program. With … Continue reading

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Strange bug still comes and goes

I have this bizzar bug that comes and goes. When connected to the JTAG pod, I never see it. When operating disconnected, it will in fits and starts not boot properly. Since it never seems to happen when connected to … Continue reading

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Chassing random crashes

Last night I stopped trying to add more functionality and get to the bottom of these random crashes. If I have lots of GPS data flowing through the system the system will crash in various ways. One way includes a … Continue reading

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Triply derailed

What a horrible day this has turned out to be.

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Generic UART code works

Just spend an hour and was able to finish the UART code I had to leave untested last night. I seem to be able to reliably move data at 115200 baud. Now I take a short break from coding to … Continue reading

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Another step closer to world domination

Fast update from last post. I got ChaN’s FAT32 working and can read and write files at 200kbytes/second. Not too shabby. With the FAT32 behind me, I set myself the goal of connecting my uBlox LEA-6H module to my ARM … Continue reading

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