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?
2025-07-15 1:45 PM
PC2, PC3 are actually PC2_C, PC3_C, which not available in STM32H753ZI
2025-07-15 2:23 PM
Maybe you should read the whole post.
The OP states PC2 has channel 12. He keeps bringing up the user manual. I'm just asking where he sees PC2 has channel 12. I've already posted the Nucleo with that package doesn't have channel 12.