suspect-devices/circuitpython/stmhal/timer.h, branch v1.8.7 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.8.7 2016-01-29T22:44:43+00:00 stmhal: Add PWM capability for LED(3) and LED(4) on pyboards. 2016-01-29T22:44:43+00:00 Damien George damien.p.george@gmail.com 2016-01-29T22:44:43+00:00 urn:sha1:a8a4b01af6501ff7ab61b251fc30fcf8a286f8d1 USB CDC no longer needs TIM3 (which was originally used for LED(4) PWM) and so TIM3 has been freed for general purpose use by the user. Hence LED(4) lost its PWM capabilities. This patch reinstates the PWM capabilities using a semi-generic piece of code which allows to configure a timer and PWM channel to use for any LED. But the PWM capability is only configured if the LED is set to an intensity between 1 and 254 (ie only when needed). In that case the relevant timer is configured for PWM. It's up to the user to make sure the timers are not used if PWM is active. This patch also makes sure that PWM LEDs are turned off using standard GPIO when calling led.off() or led.intensity(0), instead of just setting the PWM counter to zero. stmhal: Make TIM3 available for use by the user. 2016-01-29T22:31:56+00:00 Damien George damien.p.george@gmail.com 2016-01-29T22:31:56+00:00 urn:sha1:ea89b80ff4f842b010f9f8ec3280675f81bc6bc5 TIM3 is no longer used by USB CDC for triggering outgoing data, so we can now make it available to the user. PWM fading on LED(4) is now gone, but will be reinstated in a new way. stmhal: Allow ADC.read_timed to take Timer object in place of freq. 2015-07-22T18:41:13+00:00 Damien George damien.p.george@gmail.com 2015-07-22T18:37:21+00:00 urn:sha1:7693ef3bd6e4456105c86909174a00f535a19261 This allows a user-specified Timer for the triggering of the ADC read, mirroring the new behaviour of DAC.write_timed. Addresses issue #1129. stmhal: Allow DAC.write_timed to take Timer object in place of freq. 2015-07-21T22:39:49+00:00 Damien George damien.p.george@gmail.com 2015-07-21T22:37:45+00:00 urn:sha1:abc24c187614e358faa10ed6a3e239151f70b9f8 This allows the DAC to use a user-specified Timer for the triggering (instead of the default Timer(6)), while still supporting original behaviour. Addresses issues #1129 and #1388. Add timer_deinit and call it just before doing a soft-restart 2014-06-30T15:07:38+00:00 Dave Hylands dhylands@gmail.com 2014-06-30T14:55:54+00:00 urn:sha1:0d81c133b31774058408a5f1d1a058d9734a9def This fixes #733. Add license header to (almost) all files. 2014-05-03T22:27:38+00:00 Damien George damien.p.george@gmail.com 2014-05-03T22:27:38+00:00 urn:sha1:04b9147e150d2d6fa3750f312fe328b6a71c1b28 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/. stmhal: Add Timer class: simple TIM control, incl callback on IRQ. 2014-04-21T15:48:16+00:00 Damien George damien.p.george@gmail.com 2014-04-21T15:48:16+00:00 urn:sha1:7fdfa93700e0f5a5381a57bca3c45865c720dc2f Simple but functional timer control. More sophistication will eventually be added, or for now just use direct register access :) Also added pyb.freq() function to get MCU clock frequencies. stmhal: Add ADC function to read data at a given frequency. 2014-04-15T18:52:56+00:00 Damien George damien.p.george@gmail.com 2014-04-15T18:52:56+00:00 urn:sha1:4d7f4eb6a924f4df458eda2e624f429d67ef2248 Reads ADC values into a bytearray (or similar) at a fixed rate. Needs a better name and improved API. Also fix up DAC dma function (which also needs a better name and API). stmhal: Add timer module; move servo PWM from TIM2 to TIM5. 2014-04-02T14:09:36+00:00 Damien George damien.p.george@gmail.com 2014-04-02T14:09:36+00:00 urn:sha1:a12be917a4644305e7813b3f4b11880aba3632ca As per issue #257, servo is better on TIM5 because TIM2 is connected to more GPIO.