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PWM on A9 is broken on Espruino board #142

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gfwilliams opened this issue Dec 17, 2013 · 3 comments
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PWM on A9 is broken on Espruino board #142

gfwilliams opened this issue Dec 17, 2013 · 3 comments
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espruino board high priority STM32

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@gfwilliams
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It turns out that STM32F103 parts are insane.

If you have two output peripherals that don't need remapping on a single pin, you have to remap one of them anyway to move it out of the way.

For instance this fixes A9 by moving USART1_TX out of the way.

poke8(0x40010004,peek8(0x40010004)|4)  // enable USART1 alternate fn
@gfwilliams gfwilliams mentioned this issue Dec 18, 2013
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@gfwilliams
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The solution for this ought to take into account that on F1 parts, only entire peripherals can be moved (so it should know if it can't put one pin on one port and one on another)

gfwilliams added a commit that referenced this issue Dec 19, 2013
@gfwilliams
(untested) general hardware init function (a step towards #142)
1dd707a
This was referenced Dec 20, 2013
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@gfwilliams gfwilliams mentioned this issue Apr 16, 2014
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@gfwilliams
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This can also be fixed with:

Serial1.setup(9600,{rx:B7, tx:B6})

Basically jshardware needs to have a much deeper understanding of what's going on. Bug #55 covers this more clearly.

@gfwilliams
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Very little interest in this it seems - Espruino Board is 10+ years old now

@gfwilliams gfwilliams closed this as not planned Won't fix, can't repro, duplicate, stale Feb 1, 2024
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