Toogle Pins for STM32MP157C-DK2

[HHass.1102]

Hello,

I am working on the evaluation board STM32MP157CDk2

I am trying to add my code in the main method while loop in order to toogle pins.

I added the following code:

while (1)
 {
 /* USER CODE END WHILE */
	 HAL_GPIO_TogglePin(atoi(1), GPIO_PIN_11);
	 HAL_Delay(100);
	 HAL_GPIO_TogglePin(atoi(0), GPIO_PIN_11);
 /* USER CODE BEGIN 3 */
 }
 /* USER CODE END 3 */

I have two questions.

1) I get the following error (attached) after i choose target and then program chip

2) I am connected through usb and UART in the eclipe, am using the system work bench as an IDE. Is there something to do before doing the build for connecting with the device in a special way?. I can see in the console that i am connected to the board. and Eclipse shows the message at the buttom (Serial Console in use).

I am new to this. I appreciate your help alot

Best Regards

[Genadi Zawidowski]

You should use GPIOA (point to PA11 in your case) instead atoi(1) and atoi(0)

Also, add delay function after second toggle or remove line 6 at all.

[HHass.1102]

I did but that is not the problem. It seams like its not finding some config file, i do not know if that the config file of the OCD and where to find it and where to define it in the program.

[Bumsik Kim]

What IDE are you using? The error message clearly states that you don't have the OpenOCP config file.

[HHass.1102]

I am using the System Workbench. i configured the OpenOCD. through run-> external tools-> as seen in the attachment. and the openocd now is configured, it is just listening on port 333 for the gdb. but after i configured the gdb. I have the following message:

Open On-Chip Debugger 0.10.0+dev-01124-gbfb41e6 (2018-11-16-15:00)

Licensed under GNU GPL v2

For bug reports, read

   http://openocd.org/doc/doxygen/bugs.html

cortex_a interrupt mask on

cortex_a interrupt mask on

cortex_a domain access control fixup on

cortex_a domain access control fixup on

3333

none separate

adapter speed: 5000 kHz

adapter_nsrst_assert_width: 200

adapter_nsrst_delay: 200

none srst_pulls_trst

srst_only srst_pulls_trst srst_gates_jtag srst_open_drain connect_deassert_srst

Info : Listening on port 6666 for tcl connections

Info : Listening on port 4444 for telnet connections

Info : STLINK V2J34S25 (API v2) VID:PID 0483:3752

Info : using stlink api v2

Info : Target voltage: 3.257143

Info : clock speed 5000 kHz

Info : SRST line released

Info : stlink_connect(connect)

Info : SWD DPIDR 0x6ba02477

Info : stm32mp15x.cpu0: hardware has 6 breakpoints, 4 watchpoints

Info : stm32mp15x.cpu1: hardware has 6 breakpoints, 4 watchpoints

Info : Listening on port 3334 for gdb connections

Info : Listening on port 3333 for gdb connections

srst_only srst_pulls_trst srst_gates_jtag srst_open_drain connect_deassert_srst

Info : accepting 'gdb' connection on tcp/3333

Info : stm32mp15x.cpu2: hardware has 6 breakpoints, 4 watchpoints

target halted due to debug-request, current mode: Thread

xPSR: 0x01000000 pc: 0x00000008 msp: 0x00000100

Info : New GDB Connection: 1, Target stm32mp15x.cpu2, state: halted

ap 0 selected, csw 0x10006000

Info : SRST line asserted

Info : SRST line released

Info : stlink_connect(connect)

Info : SWD DPIDR 0x6ba02477

Error: timed out while waiting for target halted

Info : stm32mp15x.cpu0 rev 5, partnum c07, arch f, variant 0, implementor 41

Info : stm32mp15x.cpu0 cluster 0 core 0 multi core

target halted in ARM state due to debug-request, current mode: Supervisor

cpsr: 0x800001d3 pc: 0x000092a0

MMU: disabled, D-Cache: disabled, I-Cache: disabled

ap 0 selected, csw 0x10006000

pc (/32): 0x000092A0

Info : Deferring arp_examine of stm32mp15x.cpu1

Info : Use arp_examine command to examine it manually!

Info : stm32mp15x.cpu1: hardware has 6 breakpoints, 4 watchpoints

Info : stm32mp15x.cpu1 rev 5, partnum c07, arch f, variant 0, implementor 41

Info : stm32mp15x.cpu1 cluster 0 core 1 multi core

target halted in Thumb state due to debug-request, current mode: Supervisor

cpsr: 0x800001f3 pc: 0x0000060e

MMU: disabled, D-Cache: disabled, I-Cache: enabled

Info : Deferring arp_examine of stm32mp15x.cpu2

Info : Use arp_examine command to examine it manually!

Info : Deferring arp_examine of stm32mp15x.ap2

Info : Use arp_examine command to examine it manually!

Error: Target not examined yet

embedded:startup.tcl:24: Error:

in procedure 'stm32mp15x.cpu0' called at file "target/stm32mp15x.cfg", line 185

in procedure 'ocd_bouncer'

at file "embedded:startup.tcl", line 24

Error: Target not examined yet

embedded:startup.tcl:24: Error:

in procedure 'stm32mp15x.cpu0' called at file "target/stm32mp15x.cfg", line 185

in procedure 'ocd_bouncer'

at file "embedded:startup.tcl", line 24

Error: Target not examined yet

Error: Target not examined yet

Error: Target not examined yet

Error: Target not examined yet

ap 0 selected, csw 0x10006000

Any idea where is this coming from?

Regards

[Bumsik Kim]

Don't use "run" but go to "Debug" and then look for "ST’s STM32 MPU Debugging" configuration.

You are going to want to read this: https://www.openstm32.org/Using%2BSTM32-CoPro-MPU%2Bplugin

[HHass.1102]

Ok, I ran it through the ST’s STM32 MPU Debugging and it connected to the IP address to the board and now i can see the root@stm32mp1.

but i added that code. inside the while loop of the main.c

HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_11);
	 HAL_Delay(500);
	HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_11);

I cannot see any difference in the blinking of the PIN11 which is the blue LED on the board. also, evrytime i change the HAL delay, do i have to start debugging the board again or is it real time?

Thanks in Advance

[Bumsik Kim]

GPIOA Pin 11 is NOT an LED pin. Please read the document before doing anything: https://www.st.com/content/ccc/resource/technical/document/user_manual/group1/d6/59/df/e0/8f/e7/45/8f/DM00591354/files/DM00591354.pdf/jcr:content/translations/en.DM00591354.pdf

Also, your code basically double-toggling the pin without delay, effectively making it nothing at all. Add a delay as the first comment says.

Lastly there is no C debugging tool on earth that automatically update code changes in real time.

[HHass.1102]

Ok. Thanks i understand that now. Sorry because i am new to this, just wanted to check if i can change any blinking LED while i am connected to the board. but struggling with that

[Bumsik Kim]

No worries, just try with GPIOH and GPIO_PIN_11, and delete the last HAL_GPIO_TogglePin. You will see an orange LED blinking =)

[HHass.1102]

I tried it like that:

while (1)
 {
 /* USER CODE END WHILE */
	 HAL_GPIO_TogglePin(GPIOH, GPIO_PIN_11);
	 	 HAL_Delay(500);
 /* USER CODE BEGIN 3 */
 }
 /* USER CODE END 3 */

the blinking LED's i have are green for LED2,4,3 and blue for LED8

[Bumsik Kim]

Opps, I meant GPIO_PIN_7. Sorry about that.

By the way, did you set the GPIO as output?

[HHass.1102]

No, how to do that?