Pin-out of STM32H723 vs. STM32H7 Nucleo-144 boards

[LysAn]

Dear all,

 

I am trying to make sense of the pin descriptions / pin-mapping of the STM32H7 Nucleo-144 boards, vs. the MCU STM32H723 which it is equiped with.

User manual UM2407 (rev. 4) of the board reads:

• pin PA3 has function ADC12_INP15
• pin PC0 has function ADC123_INP10
• pin PC3 has function ADC12_INP13
• pin PB1 has function ADC12_INP5
• pin PC2 has function ADC123_INP12 (i.a.)
• pin PF10 has function ADC3_INP6 (i.a.)

However, in the reference manual RM0468 (rev. 3) of the MCU:

• ADC12_INP15 appears only in Figure 163 for ADC2 connectivity; how come is it called ADC12?
• ADC123_INP10 doesn't appear at all in the .pdf. What could the reason be?
• ADC12_INP13 appears both in Figure 162 for ADC1 and in Figure 153 for ADC2, this is plausible
• ADC12_INP5 appears in Figure 162 for ADC1 and also in Figure 153 for ADC2, this is plausible
• ADC123_INP12 doesn't appear at all in the .pdf. What could the reason be?
• ADC3_INP6 appears both in Figure 231 for ADC3, this is also plausible
•  

Many thanks in advance

[STTwo-32]

Hello @LysAn 

The UM2407 is the user manual for the NUCLEO-H723ZG, NUCLEO-H743ZI2 and NUCLEO-H753ZI. So, the ADC123_INP10 and ADC123_INP12 does exist on the STM32H743ZIT6 and STM32H753ZIT6 MCUs (available on both NUCLEO-H723ZG and NUCLEO-H743ZI2). That's why they are mentioned on the UM2407. For the ADC12_INP15, it seems to be a typo on the Figure 162 of the RM0468 Rev3 since on the DS13313 Rev 4 we have ADC12_INP15 (that I've escalated to the concerned team for correction on the coming RM0468 versions (under internal ticket number 208346)).

PS: for the alternate functions of the Pins of your board, I suggest to always use the table 7 and 8 of the DS13313.

Best Regards.

STTwo-32