[SOLVED] Getting Started Embedded Studio & Nucleo STM32F103

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  • [SOLVED] Getting Started Embedded Studio & Nucleo STM32F103


    currently I'm trying to getting started with the Nucleo board and Embedded Studio. Therefor I installed the J-Link firmware on my Nucleo board. As far as I can tell the board is recognized as J-Link. Then I wrote a small blinky program trying to set Pin PC10 as output:

    Source Code

    1. void main(void)
    2. {
    3. RCC->APB2ENR |= (1 << 4); //IOPCEN=1
    4. GPIOC->CRH |= 0x500; //CONF1=0, CONF0=1, MODE1=0, MODE0=1
    5. GPIOC -> ODR |= (1<<10); //Set Pin PC10 high
    6. while(1)
    7. {
    8. }
    9. }
    Display All

    For starting the program I hit F5.

    The pin shows no action, but I can tell that the uC is running because when I set a breakpoint on the koop it get's hit.
  • Hello,

    Thank you for your inquiry.
    The source you posted does not result in a blinking LED as your while(1) is empty so there is no toggle of the LED pin.
    Which eval board are you using exactly? The NUCLEO-F103RB board does not have any LED connected to PC10.
    If you are using an external LED make sure you wire it correctly and use a series resistor to limit the current.

    As a starting project for blinky LED we suggest using the Embedded Studio pacakge manager. Download the STM32F1xx support package.
    Open Tools-> Show Installed Packages-> STMicroelectronics STM32F1xx CPU Support Package-> STM32F1xx Samples Solution

    There you will find a SysTick Interrupt example project.
    This example will print a message every second. Instead of printing the message you can replace the printf with the toggle of your LED pin (e.g. using XOR).
    Now you should have a quick setup of a timed blinky example.

    Best regards,
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