project: impetuOS

work is being done to enable an i2c environment sensor(SCC30-DB) on PILE1

electronically it all seems reasonable but there have been some issues with the existing i2c and sensor drivers as used in SLAB1, these are:

the I2C mcs register does not always assert the busy flag fast enough to not miss when waited on, leading to missed errors

the environment sensor was either never polled particularly fast on SLAB1 or read errors were ignored; this led to a hang in reads on the PILE1 test code

a sequence of failed I2C repeated start were observed, this is either because of a (potentially long standing) driver issue or a misunderstanding. old pull requests and issues relating to the tivaC_I2C driver did not make any mention of repeated start not working; in fact there was an issue with a lack of stop conditions leading to everything being a repeated start, this makes it more likely that this is a bad oobservation where there was some other behaviour involved...

the environment sensor output revealed a humidity of around 70% which matched the humidity on the day((taken from the met office) this test was performed many times on different days and was always within reasonable bounds of error

for some reason there has been a long standing issue in impetuOS which would prevent both m68kpc and SLAB2 from being able to get a DHCP lease. this was caused by a mixup in a pair of defines. this has now been fixed and m68kpc now successfully runs et from the TCPIP branch

now with a CI workflow!

as gitea now supports actions as a mature feature (v1.21) i have added actions to run lint and some unit tests

the unit tests needed a new framework and standard way of running, at the moment this is a single header with a few macros. if a test fails the testing function should return a nonzero integer and this is to be passed down and will lead to a failing test. for now there are only a handful of tests for strtokTS but this seems to be a reasonable way of running for now.

for a long time there has been a bug in impetuOS heap which will cause memory to be lost
not anymore! it has been fixed and spider solitaire works properly