TIMER 13

[Hiram Hyman]

Hi,

I have an issue with calling Timer13 from model.cpp. For instance, htim13.Instance->CCR1 = 95. for instance fails to load. Wasn't a problem for CM7.

c:\st\stm32cubeide_1.7.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.10.3-2021.10.win32_1.0.0.202111181127\tools\arm-none-eabi\bin\ld.exe: ./Application/User/gui/Model.o: in function `Model::PWM_DELTA(int)':

C:/TouchGFXProjects/AUGV.08.30.2002/CM7/TouchGFX/gui/src/model/Model.cpp:23: undefined reference to `htim13'

#include <gui/model/Model.hpp>

#include <gui/model/ModelListener.hpp>

#include "stm32h7xx_hal.h"

extern TIM_HandleTypeDef htim13;

Model::Model() : modelListener(0)

{

}

void Model::tick()

{

}

void Model:: PWM_DELTA(int value)

{

value = value * 9.70; //constant to allow 0-100 percent

 htim13.Instance->CCR1 = 95; //change dutyclycle

}

I've written this code multiple times without issue utilizing one processor (CM7). Now I'm using CM4 for PWM, I have a handler failure that I can't resolve.

I just downloaded RM0399 Reference manual so, I still need help. Anyone?

One thing I forgot to mention is that I do have the PWM signal on the scope. So the timer has started.

Hiram

[Hiram Hyman]

Anyone has a possible clue?

[Hiram Hyman]

All,

I found the answer! I'm so used to working with a single processor that I just didn't think that I need to just add TIM_HandleTypeDef htim13; and not extern TIM_HandleTypeDef htim13;

Thanks anyway!

Hiram