Duplicate of pins assignment for BGM220

[lyusupov]

Hardware

BGM220

Core version

2.1.0

Arduino IDE version

any

Operating system

any

Radio stack variant

No radio

OpenThread Border Router device (if using Matter)

none

Issue description

both PC7 and PA4 are assigned to 2 different Arduino pin numbers

Serial output

No response

RTT output (if using Matter)

No response

Minimal reproducer code

No response

[silabs-bozont]

Hello @lyusupov,
Eagle eyes, thanks for noticing. Redundant mappings (15, 16) will be removed in the next release.

[lyusupov]

@silabs-bozont

Thank you!

One more issue to talk about - when 32768 Hz XTAL is not connected to PD0 and PD1 pins -

• delay() and delayMicroseconds()
• millis() and micros()
  are operating approx. 100-110 times slower than they should.

I found out that the Core relies heavily on the external 32.768 kHz XTAL. It assumes that it is a mandatory hardware component.
However, this requirement is not specified in the Limitations section of the Core's README:
https://github.com/SiliconLabs/arduino#limitations

The request is:

Is it possible to avoid using of the RTC timer for the purpose of Arduino delay() ... and millis() ... functions in the future releases of the Core ? Arduino Cores for other SoCs typically don't do that.

[leonardocavagnis]

@silabs-bozont

Thank you!

One more issue to talk about - when 32768 Hz XTAL is not connected to PD0 and PD1 pins -

• delay() and delayMicroseconds()
• millis() and micros()
  are operating approx. 100-110 times slower than they should.

I found out that the Core relies heavily on the external 32.768 kHz XTAL. It assumes that it is a mandatory hardware component. However, this requirement is not specified in the Limitations section of the Core's README: https://github.com/SiliconLabs/arduino#limitations

## The request is: Is it possible to avoid using of the RTC timer for the purpose of Arduino delay() ... and millis() ... functions in the future releases of the Core ? Arduino Cores for other SoCs typically don't do that.

Hi @lyusupov,
Thanks for reporting.
Please open a new issue for better management.

[lyusupov]

@leonardocavagnis

Please open a new issue for better management.

Done in #87