Sine PWM for motor control

hi, I'm trying to get a sine-pwm signal on my STM32f103rct6. I'm using STM32cube with keil.
In an old post i've read that i can pass the sine-tables to the dma or use the irq. In my case i wanted to use the dma.
My goal is to have a pulse frequency signal of about 23 KHz and sinus period around 100Hz (even less). Moreover I would like
to have the same signal on three different channels, but each of them 120 degrees shifted.
I just can't set the dma, how can I do? for this moment what i see on my oscilloscope is a quite random but repetitive signal,
This probably means that either the dma is too speed or
I have badly set the parameters. tips?

#include "main.h"
#include "stm32f1xx_hal.h"

#define HUNDRED_ELEMENTS
#define PULSE 50
#define PUlSE_FREQ 1000
#define SINE_PERIOD 100


#ifdef HUNDRED_ELEMENTS
        #define PWM_ELEMENTS 100
        uint32_t PWM_Buffer[PWM_ELEMENTS] = {0,0,1,2,2,4,5,6,8,10,11,14,16,18,21,23,26,29,32,35,38,41,44,47,50,50,53,56,59,62,65,68,71,74,77,79,82,84,86,89,90,92,94,95,96,98,98,99,100,100,100,100,100,99,98,98,96,95,94,92,90,89,86,84,82,79,77,74,71,68,65,62,59,56,53,50,47,44,41,38,35,32,29,26,23,21,18,16,14,11,10,8,6,5,4,2,2,1,0,0};
#endif


TIM_HandleTypeDef htim8;
DMA_HandleTypeDef hdma_tim8_ch1;
DMA_HandleTypeDef hdma_tim8_ch2;
DMA_HandleTypeDef hdma_tim8_ch3_up;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_TIM8_Init(void);
void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim);


int main(void)
{

HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_DMA_Init();
MX_TIM8_Init();


HAL_TIM_Base_Start(&htim8);
//activated only 1 channel
HAL_TIM_PWM_Start(&htim8,TIM_CHANNEL_1);
HAL_TIM_PWM_Start_DMA(&htim8, TIM_CHANNEL_1,PWM_Buffer ,sizeof(PWM_Buffer));


 while (1)
  {
  }


}


void SystemClock_Config(void)
{

 RCC_OscInitTypeDef RCC_OscInitStruct;
 RCC_ClkInitTypeDef RCC_ClkInitStruct;

 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
 RCC_OscInitStruct.HSEState = RCC_HSE_ON;
 RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
 RCC_OscInitStruct.HSIState = RCC_HSI_ON;
 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
 RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }


  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }


  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);


  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}

/* TIM8 init function */
static void MX_TIM8_Init(void)
{

        /*Parameters*/
                        uint32_t TIMER_frequency = HAL_RCC_GetHCLKFreq();
                        uint32_t PSC_Value = (TIMER_frequency / PUlSE_FREQ) - 1;
                        uint16_t ARR_Value = SINE_PERIOD - 1;
         /*end*/

  TIM_MasterConfigTypeDef sMasterConfig;
  TIM_OC_InitTypeDef sConfigOC;
  TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig;

  htim8.Instance = TIM8;
  htim8.Init.Prescaler = PSC_Value;
  htim8.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim8.Init.Period = ARR_Value;
  htim8.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim8.Init.RepetitionCounter = 1;
  htim8.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_PWM_Init(&htim8) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim8, &sMasterConfig) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

  sConfigOC.OCMode = TIM_OCMODE_PWM1;
  sConfigOC.Pulse = PULSE;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
  sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
  sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
  if (HAL_TIM_PWM_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

  if (HAL_TIM_PWM_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

  if (HAL_TIM_PWM_ConfigChannel(&htim8, &sConfigOC, TIM_CHANNEL_3) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

  sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
  sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
  sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
  sBreakDeadTimeConfig.DeadTime = 0;
  sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
  sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
  sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
  if (HAL_TIMEx_ConfigBreakDeadTime(&htim8, &sBreakDeadTimeConfig) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

  HAL_TIM_MspPostInit(&htim8);

}

/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void)
{
        DMA_HandleTypeDef dmahandle;
        //DMA_InitTypeDef dmaconfig;
  /* DMA controller clock enable */
  __HAL_RCC_DMA2_CLK_ENABLE();

  /* DMA interrupt init */
  /* DMA2_Channel1_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA2_Channel1_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA2_Channel1_IRQn);
  /* DMA2_Channel3_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA2_Channel3_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA2_Channel3_IRQn);
  /* DMA2_Channel4_5_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA2_Channel4_5_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA2_Channel4_5_IRQn);


 //DMA init ... I tried to set the dma by hand but it doesn't work
        /*
        dmahandle.Init.Mode = DMA_CIRCULAR;
        dmahandle.State = HAL_DMA_STATE_READY;
        dmahandle.Init.Direction = DMA_MEMORY_TO_PERIPH;
        dmahandle.Init.PeriphInc = DMA_PINC_DISABLE;
        dmahandle.Init.MemInc = DMA_MINC_ENABLE;
        dmahandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
        dmahandle.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;

        // probably missing: Instance, DmaBaseAddress, ChannelIndex e altre cose della lista
        HAL_DMA_Init(&dmahandle);

        */
}


static void MX_GPIO_Init(void)
{
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();

}