I2C Slave with interrupt

[kumt]

Hi,
I think I2C Slave on pyboard is a blocking process. Is it possible to use pyboard as a slave with interrupts? Any suggestions on coding using pyboard IRS for getting around interrupt problem.

Thanks
kumt

[pythoncoder]

For performance this would be best implemented as a C module, buffering the data along the lines of the UART driver. Writing such a driver might be tricky depending on your experience.

The easy way to do nonblocking communication with MicroPython targets is by using a UART.

[kumt]

Thank you for your reply.

[pythoncoder]

Blimey, that was a long delay

In the intervening two years I wrote a means of creating a communication channel using I2C to enable a Pyboard to communicate with any MicroPython device using stream I/O. The Pyboard achieves asynchronous full duplex communication with targets such as an ESP8266. It may be found in this repo.

In general a UART is far preferable, but on targets like ESP8266 it's not an easy option.