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Support PWM pins of ATtiny85 Timer1 #20

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jfpoilpret opened this issue Jan 27, 2018 · 4 comments
Open

Support PWM pins of ATtiny85 Timer1 #20

jfpoilpret opened this issue Jan 27, 2018 · 4 comments
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enhancement target support Request to support a new MCU AVR target or improve support for an existing target

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@jfpoilpret
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Currently, FastArduino ATtiny85 support enables only 2 PWM pins, both based on Timer0.

Event though currently FastArduino does not allow support for PWM pins linked to more than 1 timer, that still leaves room for pin PB4 (OC1B).
@jfpoilpret
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The reason why PB4 is not initially supported by FastArduino ATtiny85, is because in ATtiny85, Timer1 is very different to all other AVR timers, and support would have required FastArduino refactoring of "board traits" in addition to Timer implementation.

I'd rather implement this refactoring for a later FastArduino version.

@jfpoilpret jfpoilpret added this to the 2.0 milestone Jan 27, 2018
@jfpoilpret
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Resolving this issue would better be combined with #18

@jfpoilpret
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Note the following article may be useful for this issue: https://www.re-innovation.co.uk/docs/fast-pwm-on-attiny85/

@jfpoilpret jfpoilpret modified the milestones: 2.0, 1.3 Feb 22, 2018
@jfpoilpret jfpoilpret mentioned this issue May 19, 2019
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@jfpoilpret jfpoilpret self-assigned this Jul 1, 2019
@jfpoilpret jfpoilpret removed this from the 1.3 milestone Aug 25, 2019
@jfpoilpret
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Remove this issue from milestone 1.3
To be rescheduled later.
This does not seem urgent (not so many projects use ATtinyX5 MCU).

@jfpoilpret jfpoilpret removed their assignment Sep 22, 2019
@jfpoilpret jfpoilpret added the target support Request to support a new MCU AVR target or improve support for an existing target label Apr 7, 2020
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enhancement target support Request to support a new MCU AVR target or improve support for an existing target
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