STM32CubeMX generating bad code for TIM3

Posted on November 24, 2016 at 11:41

Dear User,

I have checked from my side

with STM32F030K6T, I have the correct code:

GPIO_InitStruct.Alternate = GPIO_AF1_TIM3;

Could you please precise with which device you have found this issue ? So, we can verify it and you can share your .ioc to check with you this case.

Best Regards

STMforum

Posted on November 24, 2016 at 12:43

Hi,

I used the STM32F051R8Tx.

Just tried again, with same result.

Kindly,

Jan

________________

Attachments :

STM32F051R8Tx.ioc : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006Htpe&d=%2Fa%2F0X0000000aXS%2F9IQki.xDUHbv5JMTiVp2hmYKr1sR7dPjKo42L.lCXXE&asPdf=false

Posted on November 24, 2016 at 13:56

Dear frisk.jan,

Referring to the datasheet for STM32F051x4, STM32F051x6 and STM32F051x8 : TIM3 is configured as AF1 Alternate Function.

The specific alternate function assignments for each pin are detailed in the device

http://www.st.com/content/ccc/resource/technical/document/datasheet/55/53/3e/86/29/61/41/d9/DM00039193.pdf/files/DM00039193.pdf/jcr:content/translations/en.DM00039193.pdf

: Table 15. Alternate functions selected through GPIOB_AFR registers for port B

Best Regards

STM32.forum

Posted on November 24, 2016 at 15:09

Dear,

in my case the TIM3_CH3 is on PC8, on a 64-pin STM32F051R8Tx. The blue LED is sitting on that pin on the STM32F0-Discovery.

The code below is generated by CubeMX with the MCU alone chosen, i.e. not the Discovery-board.

    /**TIM3 GPIO Configuration    

    PC8     ------> TIM3_CH3

    */

    GPIO_InitStruct.Pin = GPIO_PIN_8;

    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

    GPIO_InitStruct.Pull = GPIO_NOPULL;

    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

    GPIO_InitStruct.Alternate = GPIO_AF0_TIM3;

    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

Best Regards,

Jan

Posted on November 24, 2016 at 15:24

Dear Jan,

 

I will report this issue to our CUBEMX team for checking, thank you for highlighting it.

Best Regards

STM32.forum