Commit Graph

9 Commits

Author SHA1 Message Date
Damien George
24119176e7 stmhal: Allow pyb.freq() function to change SYSCLK frequency.
Eg pyb.freq(120000000) sets the CPU to 120MHz.  The frequency can be set
at any point in the code, and can be changed as many times as you like.
Note that any active timers will need to be reconfigured after a freq
change.

Valid range is 24MHz to 168MHz (but not all freqs are supported).  The
code maintains a 48MHz clock for the USB at all times and it's possible
to change the frequency at a USB REPL and keep the REPL alive (well,
most of the time it stays, sometimes it resets the USB for some reason).
Note that USB does not work with pyb.freq of 24MHz.
2014-10-04 01:54:31 +01:00
Damien George
ac04a8a56a stmhal: Enable 8-byte stack alignment for IRQ handlers. 2014-09-25 15:47:53 +01:00
Damien George
3ef911345c stmhal: Update STM32Cube F4 HAL driver to V1.3.0.
This patch updates ST's HAL to the latest version, V1.3.0, dated 19 June
2014.  Files were copied verbatim from the ST package.  Only change was
to suppress compiler warning of unused variables in 4 places.

A lot of the changes from ST are cosmetic: comments and white space.
Some small code changes here and there, and addition of F411 header.

Main code change is how SysTick interrupt is set: it now has a
configuration variable to set the priority, so we no longer need to work
around this (originall in system_stm32f4xx.c).
2014-08-06 22:33:31 +01:00
Damien George
04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George
fdbc22e4d2 stmhal: Disable redundant SystemCoreClockUpdate function. 2014-03-15 14:45:51 +00:00
Dave Hylands
0a64c92a9c stmhal - add led support. Add netduino_plus_2 support
Tweaked a couple of the USB files to compile if neither dev nor host was defined.
Tested on netduiono plus 2 and stm32f4discovery boards
2014-03-14 09:48:49 -07:00
Dave Hylands
ef39f2d9ca Cleanup systick for stmhal 2014-03-13 14:40:49 -07:00
Dave Hylands
f14b92b9e1 REPl working on UART6 with STMHAL 2014-03-12 18:15:55 -07:00
Dave Hylands
dd38d90724 Initial checkin with STM HAL
This compiles and links, but hasn't been tested on a board
yet and even if it was run, it doesn't currently do anything.
2014-03-11 23:55:41 -07:00