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Internal PU/PD setting on PA8 of STM32G070RB

FYUJI.1
Associate II

Hi,

Now, we use STM32G070RB.

Please let me make clear about internal PU/PD resistor setting on PA8.

Although we set internal PU res from GPIOA_PUPDR, measured voltage is near 0V at this port.

We found this is because the PD res that is set by SYSCFG_CFGR1[9].

After assert this bit, we could get 3.3V(pulled-up by internal res by GPIOA_PUPDR).

Actually, there is priority for these PU setting and PD setting on this port?

Br,

Yuji

10 REPLIES 10
FYUJI.1
Associate II

Dear JW

i understood well.

Thanks for your support!

Br, Yuji