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Author SHA1 Message Date
Markus Hitter 10310e9d19 heater-arm.c: respect configured PWM frequencies. 
Especially at high frequencies the achieved one is only close,
but that's entirely sufficient for our purposes.

Test: the PWM frequency on the scope should be similar to the
one configures in the board file with DEFINE_HEATER().
 2015-08-13 16:41:33 +02:00
Markus Hitter d7b59e2d33 ARM: implement heater-arm.c partially. 
Currently at a fixed frequency of 1 kHz and with a fixed duty
cycle of 10%, but PWM does work.

As it turns out, PIO0_11 is not usable for PWM, because its timer
is already in use for the Step timer, and had to be disabled for
Gen7-ARM.

Test: define a heater in board.gen7-arm.h and a square signal
of 1 kHz with 10% duty cycle should appear on the heater pin.
 2015-08-13 16:41:33 +02:00
Markus Hitter 05c7cf067f ARM: get dda_lookahead.c in. 
Not much to say, simply works.
 2015-08-12 14:26:37 +02:00
Markus Hitter 5a8dcf8e97 ARM: add a board configuration for Gen7-ARM. 
Wohoo, this is the first ARM board in Configtool. Let's see how
Configtool deals with it :-)
 2015-08-12 14:26:36 +02:00