OpenOCD with SWD
It’s often tricky to know what’s happening inside a microcontroller when everything is not going as planned. This post is about enabling GDB with chips providing the SWD interface, e.g. STM32 chips....
View ArticleCompiling STM32 examples in Linux
ST has quite a lot of source code examples for their evaluation boards introducing about all features of the boards. The downside is they support only commercial compilation environments, like IAR...
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Designing a robot control board
Basic idea behind starting to create this board was to create an open and easy to develop platform with the latest technology. We started from scratch so that we could learn cool things but also...
View ArticleSetting up a basic ChibiOS project
ChibiOS is a nifty little OS for a selection of microchips, most notably chips from the STM32 family. There are plenty of examples how you can start working with ChibiOS in Eclipse and other IDE’s, and...
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Some IMUs and sensors
Everybody needs an IMU. We need one too. But why buy something ready when you can create your own and learn? We’ve been following some IMU projects while trying to figure out what kind of IMU we would...
View ArticleIMU sensor comparison
Continuing the quest started earlier for a good IMU, I listed some popular accelerometers, gyroscopes, magnetometers, and pressure sensors with their most(?) important attributes. I have to admit that...
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Control board PCBs arrived
We have now received our first control board PCBs from ITead Studio. It took two weeks from placing the order to receive the boards. ITead provides quite cheap services. You can get a 5cmx5cm 2-layer...
View ArticleWiki opened
We now have a wiki. Not much there yet but hopefully more and more in the future. There are some details, including a lengthy list of bugs in the Control Board v1. All of those will be handled in a way...
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First radio waves
First prototypes of our Radio Board v1 have been implemented succesfully. The board is based on TI’s CC430 technology platform. The exact model of the chip is CC430F5137 with 32K of flash and 4k of...
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Radio Board v2
After a too long break we finally got back to debugging the problems in the radio boards. RF measurements There was’t actually anything seriously wrong, mainly smaller issues that together made things...
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