2021-01-06 07:07 AM
We are trying to make our first large project with an STM32G473VE MCU in an LQFP-100 package, but there seems to be a discrepancy between the number of accessible ADC input pins for ADC5 between the datasheet (rev 3, last version) and what I can select in CubeMX and what is listed in the STM32G4 manual.
Speficically, the datasheet lists only lists the following inputs as alternative functions in table 12:
Pin ADC5_INx
PD8 12
PD9 13
PA8 1
PA9 2
(found by searching for ADC5_IN)
However, in the G4 series reference manual RM0440, pages 392 to 393 (table 69), many more inputs are listed, and these are in agreement with what I can select in STM32CubeMX. For example, I can select ADC5_IN7 through ADC5_IN11 which corresponds to PD10 through PD14 and these pins are indeed physically present.
Is the datasheet incomplete and these pins are OK to use, or have I misunderstood something?
For my application, it would be very convenient if those analog input pins for specifically ADC5 are available.
Solved! Go to Solution.
2021-01-06 10:38 AM
And in case it's not clear, "ADC345_INx" is shorthand for "ADC3_INx, ADC4_INx and ADC5_INx".
https://www.st.com/resource/en/datasheet/stm32g473qc.pdf
2021-01-06 09:32 AM
Look at the recent datasheet and look also for "ADC345". there are more pins reachable by ADC5.
2021-01-06 10:38 AM
And in case it's not clear, "ADC345_INx" is shorthand for "ADC3_INx, ADC4_INx and ADC5_INx".
https://www.st.com/resource/en/datasheet/stm32g473qc.pdf
2021-01-07 01:06 AM
Ahh, thanks! I was not aware of this abbreviation. Then the documents are in agreement, and I will proceed as planned. Thanks!