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STM32CubeMX: conflict between "USB OTG FS Host Only" mode and Timer1

Question asked by verma.jitesh on Dec 5, 2014
Latest reply on Dec 23, 2014 by Clive One

I am in urgent need for help regarding firmware development for STM32F205RGT ST microcontroller.
I am using STM32CubeMX software tool to generate firmware code for STM32F205RGT based board.
When I select "USB OTG_FS Host_Only" mode, it conflicts with Timer1. TIM1 is marked with yellow riangle on the software tool. When I move the cursor over it, it shows the following conflict message:

TIM: Timer Partly disabled conflict with:

Requires channel 1 and 2, 1 and 3 or 1 and 2 and 3 to be set either as a clock, a trigger source

or in input capture mode or/and

At least one channel must be set in output mode or/and

USB_OTG_FS: Mode Host_Only or/and

Channel3 must be in Input Direct Capture Mode to activate that mode or/and

An ITRx or TI1_ED must be selected as Clock/trigger source or/and

activated only when a channel is configured in output and not all in forced_output Not available

 if ETR is used as Clock Source or Trigger Source

It seems that the pins with alternate functions are causing the conflict between USB OTG FS and Timer1. Let me know what the problem is and how to resolve it. I tried to search for information at ST e2e Community support and ST FAQs, but I did not get a reliable answer. I can't change the development board hardware. Let me know if something can be changed in software via this tool STM32CubeMX in order to resolve this issue. I can send the srceen shot of the conflict from STM32CubeMX tool if requied.