2025-07-09 3:56 PM - last edited on 2025-07-10 3:56 AM by Andrew Neil
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 - last edited on 2025-07-10 3:57 AM by Andrew Neil
In NUCLEO-H753ZI schematics - PC3 is connected to CN9-9, which is Channel 12 for ADC1, ADC2 - in the H753 users manual
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.
2025-07-10 3:52 AM
"Well CN9-9 is PC2 not PC3." - Yes, PC2 is in CN9-9 according to the the schematics, , which is misleading as TDK replied. Thanks
2025-07-10 3:53 AM
Thanks
2025-07-10 7:32 AM
@PeterWangPTD wrote:"Well CN9-9 is PC2 not PC3." - Yes, PC2 is in CN9-9 according to the the schematics, , which is misleading as TDK replied. Thanks
Ok, so you're mislead to believe it was PC2. But where in the users manual did you find PC2 has channel 12?