About FAdar.1

FAdar.1 · 2021-06-30

The module that was used on this PCB was the STM32WB5MMGI/O was connected according to the datasheet attached for STM32WB55MMGShort found on 3V3 on 6 out of 6 sample prototypes. When module was desoldered from the PCB, the short went away on both PC...

FAdar.1 · 2021-04-13

Note the difference between WB5 and WB55. My main goal is to determine whether I can define any of the pins on the WB5 as SPI or ADC, or are there only certain pins that can perform those functions.

FAdar.1 · 2021-04-01

The datasheet for STM32WB5MMG says there are 2× DMA controllers (seven channels each) supporting ADC, SPI, I2C, USART, QSPI, SAI, AES, timers. It also says to reference DS11929 (The datasheet for STM32WB55) on page 2. DS11929 shows there only cert...

FAdar.1 · 2021-03-05

Are additional external circuit components needed to reliably connect USB voltage to an ADC input, besides a voltage divider that brings 5V down to 3.3V?

FAdar.1 · 2021-02-25

This is for the STM32WB5MMG, on page 11/31 of the datasheet.

FAdar.1 · 2021-08-21

The exact PN is STM32WB5MMG.I looked at the datasheet for that part and indeed is says to reference STM32WB55xx for the pin definitions.Thanks!

FAdar.1 · 2021-07-02

Yes, short between 3V3 and GND. Batteries were connected after assembly, so there was current on 3V3 line. When chip was resoldered, the short went away on both board and chip.

FAdar.1 · 2021-04-01

You are correct. My bad. The question remains though - am I able to define any of the GPIO pins on the STM32WB5MG to be SPI pins?

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Assuming the manufacturing was done correctly, are there any I/O connections that would cause a 3V3 short?

Are the pin definitions on Table 16 of DS11929 (The datasheet for STM32WB55) applicable to the STM32WB5?

Is it possible to define which pins are assigned to SPI in the firmware for the STM32WB5MMG?

external circuit components needed to reliably connect USB voltage to an ADC input

Are 3.3pF caps needed on PB10, PB11, and PC5 (sensitive GPIOs) if they are not connected to anything?

Re: Are the pin definitions on Table 16 of DS11929 (The datasheet for STM32WB55) applicable to the STM32WB5?

Re: Assuming the manufacturing was done correctly, are there any I/O connections that would cause a 3V3 short?

Re: Is it possible to define which pins are assigned to SPI in the firmware for the STM32WB5MMG?