Posted on February 15, 2014 at 21:53This software is not working with STM32F030K6 , but this sofware works with STM32F030R8. Prototype 1 used the discovery board. No we made a PCB with
STM32F030K6. And the code is not working anymore. Makes reset. If I don't call this routine, then the softtware is working also on STM32F030K6. But then we don't have the brushless sensorless functionality.
Is any work arround possible. I have a 3 phase brushless motor. For the operation I need a very low cost non overlapping PWM unit.
The software use only TIM1. So I can not understand why the software is not working with the smaller member STM32F030K6. (TIM15/16/17 is not used in this sample)
)
**
******************************************************************************
* @file Spwm.c
* @author MCD Application Team
* @version V1.0.0
* @date 16.1.2014
* @brief Tim1 3 Phase PWM for block commutation sensorless
******************************************************************************
*
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
&sharpinclude ''pwm.h''
&sharpinclude ''stm32f0xx.h''
&sharpinclude ''stm32f0xx_tim.h''
//&sharpinclude ''stm32f0xx_gpio.h''
//&sharpinclude ''stm32f0xx_rcc.h''
/* Private variables ---------------------------------------------------------*/
//uint16_t Channel1Pulse = 0, Channel2Pulse = 0, Channel3Pulse = 0;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_BDTRInitTypeDef TIM_BDTRInitStructure;
uint16_t TimerPeriod = 0;
//uint16_t Channel1Pulse = 0, Channel2Pulse = 0, Channel3Pulse = 0;
/* Private function prototypes -----------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
void Complementary_signals(void)
{
&sharpdefine PWM_FREQ 100000
TimerPeriod = (SystemCoreClock / PWM_FREQ); //16kHz TimerPeriod = 3000
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
/* Time Base configuration */
TIM_TimeBaseStructure.TIM_Prescaler = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = TimerPeriod;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM1, &TIM_TimeBaseStructure);
/* Channel 1, 2 and 3 Configuration in PWM mode */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OutputNState = TIM_OutputNState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;
TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Set;
TIM_OCInitStructure.TIM_OCNIdleState = TIM_OCIdleState_Reset;
TIM_OC1Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OC2Init(TIM1, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_Pulse = 0;
TIM_OC3Init(TIM1, &TIM_OCInitStructure);
/* Automatic Output enable, Break, dead time and lock configuration*/
TIM_BDTRInitStructure.TIM_OSSRState = TIM_OSSRState_Enable;
TIM_BDTRInitStructure.TIM_OSSIState = TIM_OSSIState_Enable;
TIM_BDTRInitStructure.TIM_LOCKLevel = TIM_LOCKLevel_1;
TIM_BDTRInitStructure.TIM_DeadTime = 20;
TIM_BDTRInitStructure.TIM_Break = TIM_Break_Enable;
TIM_BDTRInitStructure.TIM_BreakPolarity = TIM_BreakPolarity_High;
TIM_BDTRInitStructure.TIM_AutomaticOutput = TIM_AutomaticOutput_Enable;
TIM_BDTRConfig(TIM1, &TIM_BDTRInitStructure);
/* TIM2 TRGO selection */
TIM_SelectOutputTrigger(TIM1, TIM_TRGOSource_Update); // ADC_ExternalTrigConv_T2_TRGO
/* TIM1 counter enable */
TIM_Cmd(TIM1, ENABLE);
/* Main Output Enable */
TIM_CtrlPWMOutputs(TIM1, ENABLE);
}
Franz
#stm32f030k6-dead-time-with-tim1
