I2C: Improve example - Githubissues

lpc-rs / lpc8xx-hal

Hardware Abstraction Layer (HAL) for NXP LPC800 series of microcontrollers, written in the Rust programming language

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I2C: Improve example #103

Closed hannobraun closed 4 years ago

hannobraun commented 6 years ago

[x] ~It should test reading/writing with multiple bytes. So far I've only been reading/writing single bytes.~
[ ] It's unfortunate that an external circuit is required for the example to run. The example should be rewritten to use multiple I2C peripherals using the same pins to communicate with each other (depends on #98 and #99).

hannobraun commented 4 years ago

There's an example that reads/writes multiple bytes now: https://github.com/lpc-rs/lpc8xx-hal/blob/8d0c46d4825fe7f0c37805d23a9b7b7dd61b7a64/examples/i2c_eeprom.rs

Updated the issue description.

hannobraun commented 4 years ago

I just realized that using multiple I2C instances with the same pin is not possible, as I2C uses the same pin for both input and output, and we can't assign multiple output functions to the same pin.

Something like that should be possible with SPI though, although I haven't reviewed this in detail.