8000 Can't Use PWM with Nicla Vision · Issue #641 · arduino/ArduinoCore-mbed · GitHub
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alwint3r opened this issue Mar 15, 2023 · 4 comments
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Can't Use PWM with Nicla Vision #641

alwint3r opened this issue Mar 15, 2023 · 4 comments
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bug Something isn't working nicla

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@alwint3r
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alwint3r commented Mar 15, 2023 •
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I needed to send PWM signals, but when I tried using either analogWrite or mbed::PwmOut the linker always yield the following error:

pwmout_api.c:(.text.pwmout_init+0x310): undefined reference to `PinMap_PWM_HRTIM'

The version that I used is 3.5.4.

Update: Also not working with 4.0.2 version.
@facchinm
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Wow, thanks for spotting! It's indeed an issue on our mbed-os fork, I just pushed arduino/mbed-os@a41dabe to fix it.
The proper core release will be available in the next few weeks, but in the meantime you can just copy the patch content (without WEAK ) in your sketch to get it compiling.

@facchinm facchinm added bug Something isn't working nicla labels Mar 17, 2023
@alwint3r
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Thank you @facchinm, I'll try it out.

@rneurink
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rneurink commented Apr 7, 2023

@alwint3r Have you got it working?
Even with this patch the whole board stalls. Windows also notes the USB port is not recognized.

I've compared the mbed core to the STM32H7474 discovery board. Arduino uses the high resolution timer or HRTIM for short. Maybe there's a problem with its implementation.

@rneurink
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rneurink commented Apr 7, 2023

With Mbed trace

++ MbedOS Error Info ++
Error Status: 0x80010130 Code: 304 Module: 1
Error Message: pinmap not found for peripheral
Location: 0x8046A0F
Error Value: 0x2D
Current Thread: main Id: 0x24003050 Entry: 0x80443F5 StackSize: 0x8000 StackMem:
0x24003A18 SP: 0x2400B88C
For more info, visit: https://mbed.com/s/error?error=0x80010130&osver=61700&core=0x411FC271&comp=2&ver=90200&tgt=NICLA_VISION
-- MbedOS Error Info --

@rneurink rneurink mentioned this issue May 5, 2023
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@facchinm @alwint3r @rneurink
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