Mbed-os: STM32L053xx DAC pin not correctly set in PeripheralPins.c

[bcostm]

Description

• Type: Bug
• Related issue: https://developer.mbed.org/questions/78531/DAC-error-Unknown-DAC-channel/
• Priority: Blocker

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Bug

Target
DISCO_L053C8
NUCLEO_L053R8
Check also all STM32 devices having one single DAC output

Toolchain:
ALL

mbed-os sha:
efc5c47e55b8a30c2acb366808975411e4bae7fd

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Suggested enhancement

In PeripheralPins.c replace the line:
{PA_4, DAC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 0, 0)}, // DAC_OUT
with:
{PA_4, DAC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 1, 0)}, // DAC_OUT

[theotherjimmy]

@bcostm Would you like to submit that pull request? Would you like me to?

[LMESTM]

@bcostm may not connect frequently in the coming days,
so @theotherjimmy do you think you could do it ?

[theotherjimmy]

Yes. Just a moment.

[theotherjimmy]

see PR #4732