One of the things I’m going to need at some point is additional flash memory. Since the simplest way these days to add more memory is probably via SPI, that’s what I’ll use.
This week’s episode is about connecting an SPI chip, implementing a simple driver, code re-use, the hidden dangers of solderless breadboards, and point-to-point soldering:
Image may be NSFW.
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- Hooking up a dataflash chip– Wed
- Accessing SPI memory– Thu
- Too much capacitance is bad– Fri
- Soldering one-off SMD circuits– Sat
The end result is several megabytes of extra storage, using only 4 I/O pins. Data logger? Serial port audit? Storage for audio, video, images? Your next novel? It’s all up to you!
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