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We know SPI as a 4*-wire protocol. But it doesn't have to be. I'm checking high speed SPI data transfer with buffers, DMA and parallel data lines.     In this blog, I finally got everything working. I'll show a single buffered SPI Master with DMA and 4 data lines. The next one will be the Slave side, with multi-buffering and trigger based action..   Attention: there's pre-knowledge required. For this blog it's expected that you have decent Hercules skills and that you can s ...
The element14 roadtests are a great way to learn new things. Whenever I see a test that interests me, I enroll. Success is not guaranteed. I've been selected for some, not for others. In this series I'll explain how I decide to enroll or not. I'll also show how I build my case, including some examples from my applications.   edit: I wrote this post before I knew the outcome of the last three road tests. This is the first time I'm selected for an instrument, after 4 years of applying. Per ...