• State Not Answered
  • Locked Locked
  • Replies 4 replies
  • Subscribers 21 subscribers
  • Views 3591 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Shutting down debug session

Ahmet AKGÖZ

Hi,

I genareted a basic test project with stm32MXcube. I2C is active only. But i can not debug this project. After remap command (__HAL_AFIO_REMAP_I2C1_ENABLE();) shutting down debug session.

MCU: STM32F103VCT6
Debugger: ST-LINK/V2

I am using this wires:

1-PA14/SWCLK
2-PA13/SWDIO
3-NRST
4-VDD
5-VSS

PB9/SDA
PB8/SCL

If i don't use remap command ( PB7/SDA, PB6/SCL ) there is no any problem.

Please help me.

Thank you.

Parents
  • 0 in reply to Ahmet AKGÖZ

    I have a similar problem with a board with an STM32F100RC.
    The debugger stops when MX_I2C1_Init() is called.

    __HAL_AFIO_REMAP_I2C1_ENABLE();

    is expanded to

    SET_BIT(AFIO->MAPR, AFIO_MAPR_I2C1_REMAP)

    but the SET_BIT macro can't be called with the register AFIO->MAPR
    Bits 24-26 of this register are write only so you can't use a read/modify/write instruction on this register.

    I solved the problem using this instruction instead:

    AFIO->MAPR = (AFIO->MAPR & (!AFIO_MAPR_SWJ_CFG_Msk)) | AFIO_MAPR_SWJ_CFG_JTAGDISABLE | AFIO_MAPR_I2C1_REMAP;

    Use at your own risk ;-)

    P.S.
    or instead of SET_BIT/CLEAR_BIT a MODIFY_REG macro should always be used with register AFIO->MAPR

Reply
  • 0 in reply to Ahmet AKGÖZ

    I have a similar problem with a board with an STM32F100RC.
    The debugger stops when MX_I2C1_Init() is called.

    __HAL_AFIO_REMAP_I2C1_ENABLE();

    is expanded to

    SET_BIT(AFIO->MAPR, AFIO_MAPR_I2C1_REMAP)

    but the SET_BIT macro can't be called with the register AFIO->MAPR
    Bits 24-26 of this register are write only so you can't use a read/modify/write instruction on this register.

    I solved the problem using this instruction instead:

    AFIO->MAPR = (AFIO->MAPR & (!AFIO_MAPR_SWJ_CFG_Msk)) | AFIO_MAPR_SWJ_CFG_JTAGDISABLE | AFIO_MAPR_I2C1_REMAP;

    Use at your own risk ;-)

    P.S.
    or instead of SET_BIT/CLEAR_BIT a MODIFY_REG macro should always be used with register AFIO->MAPR

Children
No data