Allows to iterate over the following without allocating on the heap:
- tuple
- list
- string, bytes
- bytearray, array
- dict (not dict.keys, dict.values, dict.items)
- set, frozenset
Allows to call the following without heap memory:
- all, any, min, max, sum
TODO: still need to allocate stack memory in bytecode for iter_buf.
This patch changes the threading implementation from simple round-robin
with busy waits on mutexs, to proper scheduling whereby threads that are
waiting on a mutex are only scheduled when the mutex becomes available.
The aapcs-linux ABI is not required, instead the default aapcs ABI is
enough. And using the default ABI means that the provided libgcc will now
link with the firmware without warnings about variable vs fixed enums.
Although the binary size increases by about 1k, RAM usage is slightly
decreased. And libgcc may prove useful in the future for things like
long-long division.
This new function controls what happens on a hard-fault:
- debugging disabled: board will do a reset
- debugging enabled: board will print registers and stack and flash LEDs
The default is disabled, ie to do a reset. This is different to previous
behaviour which flashed the LEDs and waited indefinitely.
This patch brings the _thread module to stmhal/pyboard. There is a very
simple round-robin thread scheduler, which is disabled if there is only
one thread (for efficiency when threading is not used).
The scheduler currently switches threads at a rate of 250Hz using the
systick timer and the pend-SV interrupt.
The GIL is disabled so one must be careful to use lock objects to prevent
concurrent access of objects.
The threading is disabled by default, one can enabled it with the config
option MICROPY_PY_THREAD to test it out.
The first partition is mounted as "/sd" and subsequent partitions are
mounted as "/sd<part_num>". This is backwards compatible with the previous
behaviour, which just mounted the first partition on "/sd".
At this point, only FatFs filesystems are mounted.
Damien George
Johannes Wågen