Hello,
We cannot move a BLDC motor (using the x-cube-spn8 demo software with IAR) with STM32F302 and IHM08M1 driver.
It attempts to move but is stuck and bound up. Once in a while immediately on starting app it would move a few revolutions before binding up. The demo ramps the velocity in cycles, which I can hear when it is driving.
Both the motor driver and HALL pins are connected to the IHM08M1 driver board.
We are using the latest version of the IAR compiler v 8.32 and this is where I downloaded the demo software:
https://my.st.com/content/my_st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32cube-expansion-packages/x-cube-spn8.license=1545308016142.product=X-CUBE-SPN8.version=1.0.1.html
When I opened the project file it converted the x-cube-spn8 project to be able to be used with the latest compiler. Is this OK or do you recommend a specific compiler version?
Are there any parameters that we should know that can cause the motor commutations to not fire in correct order for the motor we are using?
en.x-cube-spn8\STM32CubeExpansion_SPN8_V1.0.1\Projects\Multi\Examples\MotorControl\Inc\MC_SixStep_param.h
We did set the NUM_POLE_PAIRS to 4 to match our BLDC motor in this header file:
\en.x-cube-spn8\STM32CubeExpansion_SPN8_V1.0.1\Projects\Multi\Examples\MotorControl\Inc\MC_SixStep_param.h
We noticed via the scope that Pin 2 on J3 (HALL 2 - aka PB3) is at random cycling up and down even when the motor is turned by hand while the program is running. The other HALL Pins look OK:
Here is the associated code in the demo project related to setting up that pin.
Does this look correct?
This is from the file:
en.x-cube-spn8\STM32CubeExpansion_SPN8_V1.0.1\Projects\Multi\Examples\MotorControl\Src\stm32f3xx_hal_msp.c
else if(htim_base->Instance==TIM2)
{
/* USER CODE BEGIN TIM2_MspInit 0 */
/* USER CODE END TIM2_MspInit 0 */
/* Peripheral clock enable */
__TIM2_CLK_ENABLE();
/**TIM2 GPIO Configuration
PB3 ------> TIM2_CH2
*/
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF1_TIM2;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USER CODE BEGIN TIM2_MspInit 1 */
/* USER CODE END TIM2_MspInit 1 */
}
-
This file describes "select configuration for workspace (normal, demo, comm or boot)".
We compiled with defaults but how do I pick a specific config for IAR compiler v 8.32 ?
\en.x-cube-spn8\STM32CubeExpansion_SPN8_V1.0.1\Projects\Multi\Examples\MotorControl\EWARM\STM32F302R8-Nucleo\readme.txt
Any help would be greatly appreciated.
Thanks, John
