suspect-devices/circuitpython/cc3200, branch v1.8.2CircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.8.22016-06-28T10:28:53+00:00cc3200: Remove obsolete singleton heart-beat object.2016-06-28T10:28:53+00:00Damien Georgedamien.p.george@gmail.com2016-06-28T10:26:43+00:00urn:sha1:d862a7b811f095b3e67fb7dbf66d532a4498aa18cc3200: Allow to compile bootloader with threading enabled.2016-06-28T10:28:53+00:00Damien Georgedamien.p.george@gmail.com2016-06-28T10:25:50+00:00urn:sha1:842c2c74c02d5ad0b409cda2fd6e64f339b45ba9
Threading is not used in the bootloader but the config optios are still
enabled so we must exclude including FreeRTOS.h.
cc3200: Shrink the FreeRTOS heap and place TCB+stack in freed location.2016-06-28T10:28:53+00:00Damien Georgedamien.p.george@gmail.com2016-06-05T12:01:16+00:00urn:sha1:469c623bb8e504ca78f1964508579ecefec76a98
The 16k FreeRTOS heap originally had all TCBs and stacks dynamically
allocated within it (plus semaphores and some other things). Now that
xTaskCreateStatic is used instead of xTaskCreate, the TCBs and stacks
are allocated statically and no longer use any of the FreeRTOS heap.
Therefore, the FreeRTOS stack can be shrunk by the amount that has been
made static. Furthermore, the TCBs and stack that are now static should
be placed in the .rtos_heaps section of RAM because this RAM is treated
specially by the bootloader (the bootloader executes from the first 16k
of RAM and loads the firmware into the section starting after the 16k).
After this patch the FreeRTOS heap (ucHeap) is 7200 bytes. The memory
available for the MicroPython heap is 54936 bytes (including GC overhead).
cc3200: Start the simplelink spawn task using the static task creator.2016-06-28T10:28:53+00:00Damien Georgedamien.p.george@gmail.com2016-06-05T11:57:18+00:00urn:sha1:e098eac19552a5a399ffbfae44e4b329ca623d0d
In VStartSimpleLinkSpawnTask we change xTaskCreate to xTaskCreateStatic
so that the task is created using statically allocated memory for the TCB
and stack.
This means that xTaskCreate function is no longer needed (the static
version is now used exclusively).
cc3200: Remove .boot section attribute from osi_TaskCreate function.2016-06-28T10:28:53+00:00Damien Georgedamien.p.george@gmail.com2016-06-05T11:45:37+00:00urn:sha1:5b8e884573d582d2c48c7b344a8876fbbeb67692
This function is no longer used. Having the .boot section attribute
meant that it was included in the firmware regargless of use. Without
this attribute the linker can remove the function.
cc3200: In FreeRTOSConfig.h, comment on configSUPPORT_STATIC_ALLOCATION.2016-06-28T10:28:53+00:00Damien Georgedamien.p.george@gmail.com2016-06-05T11:43:04+00:00urn:sha1:1d5aa9d245362d060843688a97f12a86b8fe1e46
This config variable is now needed regardless of whether threading is
enabled or not.
cc3200: Enable the GIL.2016-06-28T10:28:52+00:00Damien Georgedamien.p.george@gmail.com2016-05-31T16:35:11+00:00urn:sha1:53562213c883ae4a89a3eff3eb4985716c5114c8cc3200/mpthreadport: Move mem alloc outside the thread_mutex lock.2016-06-28T10:28:52+00:00Damien Georgedamien.p.george@gmail.com2016-05-31T16:34:13+00:00urn:sha1:fa2ac93c3a7bbb7b368b4ea3ab3ede75396b14ac
Otherwise there could be a deadlock, with the GC's mutex and
thread_mutex.
cc3200/mpthreadport: Scan more root pointers from thread data.2016-06-28T10:28:52+00:00Damien Georgedamien.p.george@gmail.com2016-05-31T16:32:37+00:00urn:sha1:757146efe3b77d0f2fa47604a2c5dfd47550c12acc3200/gccollect: Use MP_STATE_THREAD(stack_top) to get top of stack.2016-06-28T10:28:52+00:00Damien Georgedamien.p.george@gmail.com2016-05-31T16:31:28+00:00urn:sha1:17886828c8cb682092b8ba18db0723598c3a7b73