Bug in STM32CubeMX with COMP

[Carl_G]

For COMP1 on STM32G0 here are the pin assignments from the reference manual

I want PA1 and so I've chosen that in the STM32CubeMX

However, the generated code sets 

and the value of InputPlus is

 

 

/** @defgroup COMP_InputPlus COMP input plus (non-inverting input)
 * @{
 */
#define COMP_INPUT_PLUS_IO1 (0x00000000UL) /*!< Comparator input plus connected to IO1 (pin PC5 for COMP1, pin PB4 for COMP2, pin PB0 for COMP3 (for devices featuring COMP3 instance)) */
#define COMP_INPUT_PLUS_IO2 (COMP_CSR_INPSEL_0) /*!< Comparator input plus connected to IO2 (pin PB2 for COMP1, pin PB6 for COMP2, pin PC1 for COMP3 (for devices featuring COMP3 instance)) */
#define COMP_INPUT_PLUS_IO3 (COMP_CSR_INPSEL_1) /*!< Comparator input plus connected to IO3 (pin PA1 for COMP1, pin PA3 for COMP2, pin PE7 for COMP3 (for devices featuring COMP3 instance)) */

 

Which apparently maps to PB2 which is wrong!

 

On the other hand, COMP2 I have chosen PB6 and its getting 

COMP2 seems to be right but COMP1 is not.

I have reconfirmed this after forgetting about it and spending hours debugging why my COMP was triggering instantly.  Definitely a bug.

Version 6.14.0
STM32G071CBU

 

 

[TDK]

Can't find the thread, but this was reported a bit ago and appears fixed in the latest CubeMX version (6.14.1). At least, the bug can't be duplicated here.

 

[Carl_G]

Still happening for me with 6.14.1.

[Ghofrane GSOURI]

Hello @Carl_G 

Could you please provide your IOC.

I will be waiting for your feedback.

THX

Ghofrane

[Carl_G]

Here is the ioc

[Carl_G]

I uploaded the IOC about 10 minutes after @Ghofrane GSOURI asked. Not sure if you got it and deleted it from the forum?

[Ghofrane GSOURI]

Hello @Carl_G 

After reviewing your IOC file, I was able to identify the issue you mentioned in your first comment.

However, when starting a new project from scratch using CubeMX 6.14.1, the generated code is correct.

Could you please provide more details about the version of CubeMX you were using to create your original project before migrating to CubeMX 6.14.1?

THX

Ghofrane

[Carl_G]

I started initially with 

STM32CubeIDE_1.16.1

Then attempted an update within the IDE which failed.

I did a fresh install of 

STM32CubeIDE_1.18.0

Then I transitioned to using 

CubeMX 6.14.0

After the bug I attempted

CubeMX 6.14.1

 

Respectfully,

Carl