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The GNU MCU Eclipse QEMU
http://gnuarmeclipse.github.io/qemu/
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GPIO toggling does not work #31

Closed ivlz closed 7 years ago

ivlz commented 7 years ago

I tried to run ST the GPIO_IOToggle example project from ST's library STM32Cube_FW_F1_V1.4.0. Everything was okay except that the function HAL_GPIO_TogglePin(LED2_GPIO_PORT, LED2_PIN) in main.c at line 100 does not toggle the GPIO output. I ended up using HAL_GPIO_WritePin(LED2_GPIO_PORT,LED2_PIN, seconds % 2) and this fixed it. I believe this may be a QEMU issue because even direct register access confirmed that the GPIO was not being toggled.

Steps to reproduce (Ubuntu 14.04LTS, Eclipse CDT Neon)

  1. Load the project STM32Cube_FW_F1_V1.4.0/Projects/STM32F103RB-Nucleo/Examples/GPIO/GPIO_IOToggle into Eclipse, also pulliing in all the required sources/headers from

  2. Create a QEMU run configuration.

  3. Run the project as is, and it will be observed no toggling takes place. Hello ARM World! Second 1 [Green LED On] Second 2 Second 3 Second 4 Second 5 Second 6

  4. Replace the line 100 of STM32Cube_FW_F1_V1.4.0/Projects/STM32F103RB-Nucleo/Examples/GPIO/GPIO_IOToggle/Src/main.c with HAL_GPIO_WritePin(LED2_GPIO_PORT,LED2_PIN, seconds % 2). Toggling should be observed to take place as expected: Hello ARM World! Second 1 [Green LED On] Second 2 [Green LED Off] Second 3 [Green LED On] Second 4 [Green LED Off] Second 5 [Green LED On] Second 6 [Green LED Off]

ilg-ul commented 7 years ago

thank you for the bug report, I'll investigate.

dgtlrift commented 7 years ago

I'm trying to follow the HelloWorld tutorial and QEMU crashes with it. I get a few dialog boxes:

[QEMU machine emulators and tools]
QEMU machine emulators and tools has stopped working
A problem caused the program to stop working correctly. 
Windows will close the program and notify you if a solution is available.
[Close program]

Then the other dialog says:

[Problem Occurred]
'Launching hello Debug' has encountered a problem.
Error in services launch sequence
[OK][Details>>]

From the Console, the logs show:


GNU ARM Eclipse 64-bits QEMU v2.7.0 (qemu-system-gnuarmeclipse.exe).
Board: 'STM32-H103' (Olimex Header Board for STM32F103RBT6).
Device: 'STM32F407VG' (Cortex-M4 r0p0, MPU), Flash: 1024 kB, RAM: 128 kB.
Command line: 'hello 3 2 1' (11 bytes).
Cortex-M4 r0p0 core initialised.
Board picture: 'C:\Program Files\GNU ARM Eclipse\QEMU\2.7.0-201611282115-dev\images\STM32-H103.jpg'.
Unexpected error in object_property_find() at /Host/Work/qemu/gnuarmeclipse-qemu.git/qom/object.c:1007:
qemu-system-gnuarmeclipse.exe: Property '.unnamed-gpio-out[12]' not found

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

I just downloaded this off the instructions specified with http://gnuarmeclipse.github.io/debug/qemu/ http://gnuarmeclipse.github.io/plugins/packs-manager/ - is there an update to the documentation that is needed to overcome this issue?

ilg-ul commented 7 years ago

I suggest for the moment you use the STM32F4DISCOVERY board, which was recently updated to also implement the push buttons.

The H103 will be updated in a future release (working on QEMU right now).

dgtlrift commented 7 years ago

Thanks - using STM32F4-Discovery solved my issue...

ilg-ul commented 7 years ago

could you check the latest release (2.8) and let me know if it works?