Archive of posts tagged Erich Styger

Reading an analogue value in C on a Freescale Freedom KL25Z

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After spending the last few days messing with a MCP3002 SPI ADC chip, I’m beginning to wonder if it is not really suitable for my needs after all. Both the SPI libraries I have tried have had problems with excess waiting around transfers, which becomes very significant when each new sample requires a whole new …

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Code Warrior, Eclipse, and Freedom boards

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As you may recall, I have plans to use a Freescale ARM development board (such as a KL25Z, or a K20D50M) as an I/O interface for at least one Raspberry Pi project. These boards are a bit like a super-Arduino: small enough to fit in the archetypal mint ton, bristling with pins for digital, analog, …

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