2025-07-09 3:56 PM
Hi,
Why NUCLEO-H753ZI ADC channel 12 is missing in CubeMX ?
ADC channel 12 is in NUCLEO-H753ZI board CN9-9 connector.
A few other ADC channels are also missing in CubeMX.
Thanks,
Rong
2025-07-09 6:23 PM
How did you determine that CN9-9 is channel 12?
2025-07-09 6:47 PM
2025-07-09 7:19 PM
Well CN9-9 is PC2 not PC3.
The document clearly shows that only the TFBGA240 +25 package supports channel 12.
The Nucleo board has LQFP144 package.
2025-07-09 8:26 PM
CN9-9 is called "PC3" in the schematic, which is misleading, but it's actually the PC3_C pin, not the PC3 pin. That is the reason ADC1_CH12 is not available--because the chip doesn't have a PC3 pin.