PY32F002B/Src/main.c

/**
  ******************************************************************************
  * @file    main.c
  * @author  MCU Application Team
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2023 Puya Semiconductor Co.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by Puya under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "py32f002bxx_ll_Start_Kit.h"

/* Private define ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
unsigned int  ADC_RE[4];
unsigned int  ADC_CH1_CUSUM;
unsigned int  ADC_CH2_CUSUM;
unsigned int  ADC_CH3_CUSUM;
unsigned int  ADC_CH4_CUSUM;
unsigned int  ADC_CH1_RE;
unsigned int  ADC_CH2_RE;
unsigned int  ADC_CH3_RE;
unsigned int  ADC_CH4_RE;

// uint8_t SPI_TxBuff[32] = {    \
// 1,0xaa,2,0xaa,3,0xaa,4,0xaa,5,0xaa,\
// 1,0xaa,2,0xaa,3,0xaa,4,0xaa,5,0xaa,\
// 1,0xaa,2,0xaa,3,0xaa,4,0xaa,5,0xaa,\
// 1,0xaa
// };
uint8_t SPI_TxBuff[32];
uint8_t SPI_TxIndex = 0;
uint8_t SPI_RxBuff[32];
uint8_t SPI_RxIndex = 0;

  
typedef struct
{
  uint8_t HEAD;
  uint8_t len;
  uint8_t res[2];
  uint32_t key;
  uint16_t lx;
  uint16_t ly;
  uint16_t rx;
  uint16_t ry;
}ZKM_Keybuf_t;

ZKM_Keybuf_t Send_buf;
/* Private user code ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void APP_SystemClockConfig(void);
static void APP_AdcEnable(void);
static void APP_AdcCalibrate(void);
static void APP_AdcConfig(void);
static void APP_TimerInit(void);
static void APP_Key_Init(void);
static uint32_t APP_Read_Key_val(void);
static void APP_FlashOBProgram(void);
static void APP_ConfigSpi(void);
static void APP_ConfigureEXTI(void);
void *App_Memcpy(void *dst,const void *src,size_t size);
uint16_t calculate_check_sum(void *buf, uint16_t len);

/**
  * @brief  Main program.
  * @param  None
  * @retval int
  */
int main(void)
{
  static uint32_t cont = 0;
  static uint32_t adc_cont = 0;
  /* Configure Systemclock */
  APP_SystemClockConfig();

  /* Configure ADC parameters */
  APP_AdcConfig();
  /* Initialize USART(for printf use) */
  BSP_USART_Config();

  printf("Delay:1000 mS \n\r");
  // LL_mDelay(1000);
  printf("Delay End, program start \n\r");
  APP_ConfigureEXTI();
  /* Initialize TIM1 */
  APP_TimerInit();
	APP_Key_Init();
  APP_ConfigSpi();
  // memset(&Send_buf, 0, sizeof(ZKM_Keybuf_t));
  printf("sizeof(ZKM_Keybuf_t):%d\n\r",sizeof(ZKM_Keybuf_t));
  // LL_SPI_Enable(SPI1);
   while(1)
  {
		if(LL_ADC_IsActiveFlag_EOS(ADC1)==1)    //4路ADC数据采集
		{
			LL_ADC_ClearFlag_EOS(ADC1);			
		  ADC_CH1_CUSUM = ADC_CH1_CUSUM - (ADC_CH1_CUSUM>>3) +ADC_RE[0];		
			ADC_CH1_RE=ADC_CH1_CUSUM>>3;
      ADC_CH2_CUSUM = ADC_CH2_CUSUM - (ADC_CH2_CUSUM>>3) +ADC_RE[1];		
			ADC_CH2_RE=ADC_CH2_CUSUM>>3;		
		  ADC_CH3_CUSUM = ADC_CH3_CUSUM - (ADC_CH3_CUSUM>>3) +ADC_RE[2];		
			ADC_CH3_RE=ADC_CH3_CUSUM>>3;		
		  ADC_CH4_CUSUM = ADC_CH4_CUSUM - (ADC_CH4_CUSUM>>3) +ADC_RE[3];		
			ADC_CH4_RE=ADC_CH4_CUSUM>>3;
      // printf("adc: %d, %d, %d, %d ,%x\n\r", ADC_CH1_RE, ADC_CH2_RE, ADC_CH3_RE, ADC_CH4_RE, APP_Read_Key_val());
      adc_cont++;
      Send_buf.HEAD = 0xA5;
      Send_buf.len = 16;
      Send_buf.res[0] = 0;
      Send_buf.res[1] = 0;
      Send_buf.key = APP_Read_Key_val();
      Send_buf.lx = ADC_CH1_RE;
      Send_buf.ly = ADC_CH2_RE;
      Send_buf.rx = ADC_CH3_RE;
      Send_buf.ry = ADC_CH4_RE;
      App_Memcpy(SPI_TxBuff, &Send_buf, 16);
      SPI_TxBuff[16] = calculate_check_sum(SPI_TxBuff, 16);
		}
    if(cont >= 100000){
      printf("adc_cont:%d, %x\n\r",adc_cont, APP_Read_Key_val());
      cont = 0;
      adc_cont = 0;
    }else{
      cont++;
    }
	}
}

/**
  * @brief  Configure ADC parameters
  * @param  None
  * @retval None
  */
static void APP_AdcConfig(void)
{
	
	/* Enable ADC1 clock */
  LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_ADC1);
  /* Enable GPIOA clock */
  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);

  /* Configure PA7 pin in analog input mode */
  LL_GPIO_SetPinMode(GPIOA, LL_GPIO_PIN_7, LL_GPIO_MODE_ANALOG);
	/* Configure PA6 pin in analog input mode */
  LL_GPIO_SetPinMode(GPIOA, LL_GPIO_PIN_6, LL_GPIO_MODE_ANALOG);
  /* Configure PA6 pin in analog input mode */
  LL_GPIO_SetPinMode(GPIOA, LL_GPIO_PIN_4, LL_GPIO_MODE_ANALOG);
  /* Configure PA6 pin in analog input mode */
  LL_GPIO_SetPinMode(GPIOA, LL_GPIO_PIN_3, LL_GPIO_MODE_ANALOG);
	
	/* Set ADC clock to pclk/4 */
  LL_ADC_SetClock(ADC1, LL_ADC_CLOCK_SYNC_PCLK_DIV4);  

  /* Set ADC resolution to 12 bit */
  LL_ADC_SetResolution(ADC1, LL_ADC_RESOLUTION_12B);

  /* ADC conversion data alignment: right aligned */
  LL_ADC_SetDataAlignment(ADC1, LL_ADC_DATA_ALIGN_RIGHT);

  /* No ADC low power mode activated */
  LL_ADC_SetLowPowerMode(ADC1, LL_ADC_LP_MODE_NONE);

  /* Sampling time 239.5 ADC clock cycles */
  LL_ADC_SetSamplingTimeCommonChannels(ADC1, LL_ADC_SAMPLINGTIME_239CYCLES_5);

  /* ADC regular group conversion trigger from external IP: TIM1 TRGO. */
  LL_ADC_REG_SetTriggerSource(ADC1, LL_ADC_REG_TRIG_EXT_TIM1_TRGO);

  /* Set Trigger edge to rising edge */
  LL_ADC_REG_SetTriggerEdge(ADC1, LL_ADC_REG_TRIG_EXT_RISING);

  /* Set ADC conversion mode to single mode: one conversion per trigger */
  LL_ADC_REG_SetContinuousMode(ADC1, LL_ADC_REG_CONV_SINGLE);

  /* ADC regular group behavior in case of overrun: data overwritten */
  LL_ADC_REG_SetOverrun(ADC1, LL_ADC_REG_OVR_DATA_OVERWRITTEN);

  /* Disable ADC regular group sequencer discontinuous mode  */
  LL_ADC_REG_SetSequencerDiscont(ADC1, LL_ADC_REG_SEQ_DISCONT_DISABLE);

  /* Set channel 1/2/3/4/vrefint as conversion channel */
  LL_ADC_REG_SetSequencerChannels(ADC1, LL_ADC_CHANNEL_4);
	LL_ADC_REG_SetSequencerChAdd(ADC1, LL_ADC_CHANNEL_3);
	LL_ADC_REG_SetSequencerChAdd(ADC1, LL_ADC_CHANNEL_2);
	LL_ADC_REG_SetSequencerChAdd(ADC1, LL_ADC_CHANNEL_1);
	// LL_ADC_REG_SetSequencerChAdd(ADC1, LL_ADC_CHANNEL_VREFINT);

  /* Dose not enable internal conversion channel */
  LL_ADC_SetCommonPathInternalCh(__LL_ADC_COMMON_INSTANCE(ADC1), LL_ADC_PATH_INTERNAL_VREFINT );
	
	/* Enable EOC IT */
  LL_ADC_EnableIT_EOC(ADC1);

  NVIC_SetPriority(ADC_COMP_IRQn,1);
  NVIC_EnableIRQ(ADC_COMP_IRQn);
	
	/*  ADC automatic self-calibration */
  APP_AdcCalibrate();

  /* Enable ADC */
  APP_AdcEnable();

  /* Start ADC conversion (if it is software triggered then start conversion directly) */
  LL_ADC_REG_StartConversion(ADC1);
}

/**
  * @brief  ADC calibration program.
  * @param  None
  * @retval None
  */
static void APP_AdcCalibrate(void)
{
#if (USE_TIMEOUT == 1)
  uint32_t Timeout = 0;
#endif

  if (LL_ADC_IsEnabled(ADC1) == 0)
  {

    /* Enable ADC calibration */
    LL_ADC_StartCalibration(ADC1);

#if (USE_TIMEOUT == 1)
    Timeout = ADC_CALIBRATION_TIMEOUT_MS;
#endif

    while (LL_ADC_IsCalibrationOnGoing(ADC1) != 0)
    {
#if (USE_TIMEOUT == 1)
      /* Detects if the calibration has timed out */
      if (LL_SYSTICK_IsActiveCounterFlag())
      {
        if(Timeout-- == 0)
        {

        }
      }
#endif
    }

    /* The delay between the end of ADC calibration and ADC enablement is at least 4 ADC clocks */
    LL_mDelay(1);
  }
}

/**
  * @brief  Enable ADC.
  * @param  None
  * @retval None
  */
static void APP_AdcEnable(void)
{
  /* Enable ADC */
  LL_ADC_Enable(ADC1);

  /* The delay between ADC enablement and ADC stabilization is at least 8 ADC clocks */
  LL_mDelay(1);
}

/**
  * @brief  TIM1 configuration program.
  * @param  None
  * @retval None
  */
static void APP_TimerInit()
{
  /* Enable TIM1 clock */
  LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_TIM1);

  /* Set TIM1 prescale */
  LL_TIM_SetPrescaler(TIM1,6);

  /* Set TIM1 auto-reload value */
  LL_TIM_SetAutoReload(TIM1, 3000);

  /* TIM1 Update event is used as trigger output */
  LL_TIM_SetTriggerOutput(TIM1,LL_TIM_TRGO_UPDATE);

  /* Enable TIM1 */
  LL_TIM_EnableCounter(TIM1);
}

/**
  * @brief  Configure Systemclock
  * @param  None
  * @retval None
  */
static void APP_SystemClockConfig(void)
{
	/* Enable SYSCFG clock and PWR clock */
  LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_SYSCFG);
  LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
	
  /* Enable HSI */
  LL_RCC_HSI_Enable();
  while(LL_RCC_HSI_IsReady() != 1)
  {
  }

  /* Set AHB divider: HCLK = SYSCLK */
  LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);

  /* HSISYS used as SYSCLK clock source  */
  LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSISYS);
  while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSISYS)
  {
  }

  /* Set APB1 divider */
  LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
  LL_Init1msTick(24000000);

  /* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
  LL_SetSystemCoreClock(24000000);
}
/**
  * @brief  Option byte program
  * @param  None
  * @retval None
  */
static void APP_FlashOBProgram(void)
{
  FLASH_OBProgramInitTypeDef OBInitCfg;

  /* Unlock the Flash to enable the flash control register access */
  HAL_FLASH_Unlock();

  /* Unlock the Flash to enable access to the part of flash control register that is about option byte */
  HAL_FLASH_OB_Unlock();

  /* Initialize FLASH Option Bytes PROGRAM structure */
  OBInitCfg.OptionType = OPTIONBYTE_USER;
  OBInitCfg.USERType = OB_USER_BOR_EN | OB_USER_BOR_LEV | OB_USER_IWDG_SW | OB_USER_IWDG_STOP | OB_USER_SWD_NRST_MODE;
  OBInitCfg.USERConfig = OB_BOR_DISABLE | OB_BOR_LEVEL_3p1_3p2 | OB_IWDG_SW | OB_IWDG_STOP_ACTIVE | OB_SWD_PB6_GPIO_PC0 ;

  /* Execute option byte program */
  HAL_FLASH_OBProgram(&OBInitCfg);

  /* Lock the Flash to disable the flash control register access */
  HAL_FLASH_Lock();

  /* Lock the Flash to disable access to the part of flash control register that is about option byte */
  HAL_FLASH_OB_Lock();

  /* Generate a reset and let option byte reload */
  HAL_FLASH_OB_Launch();
}

void APP_GPIO_Init(GPIO_TypeDef *GPIOx,  uint32_t PinMask)
{
  // LL_GPIO_SetPinMode(GPIOx, PinMask, LL_GPIO_MODE_INPUT);
  // LL_GPIO_SetPinPull(GPIOx, PinMask, LL_GPIO_PULL_UP);
  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
  GPIO_InitStruct.Pin = PinMask;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_7;
  LL_GPIO_Init(GPIOx, &GPIO_InitStruct);
}

void APP_Key_Init(void)
{
  if(READ_BIT(FLASH->OPTR, OB_USER_SWD_NRST_MODE)!= OB_SWD_PB6_GPIO_PC0 )
  {
    /* Option byte program */
    APP_FlashOBProgram();
  }
	LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
	LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOB);
	LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOC);

  APP_GPIO_Init(GPIOA, LL_GPIO_PIN_5);
  // APP_GPIO_Init(GPIOA, LL_GPIO_PIN_2);     //TODO SWDIO 调试使用
  // APP_GPIO_Init(GPIOB, LL_GPIO_PIN_6);
  APP_GPIO_Init(GPIOB, LL_GPIO_PIN_7);
  APP_GPIO_Init(GPIOB, LL_GPIO_PIN_5);
  // APP_GPIO_Init(GPIOB, LL_GPIO_PIN_4);
  APP_GPIO_Init(GPIOB, LL_GPIO_PIN_3);
  APP_GPIO_Init(GPIOB, LL_GPIO_PIN_2);
  APP_GPIO_Init(GPIOC, LL_GPIO_PIN_0);
  APP_GPIO_Init(GPIOC, LL_GPIO_PIN_1);
}

uint32_t APP_Read_Key_val(void)
{
  uint32_t key_value = 0;

  if(LL_GPIO_IsInputPinSet(GPIOA, LL_GPIO_PIN_5) == 0) key_value |= HW_KEY_R3;
  // if(LL_GPIO_IsInputPinSet(GPIOA, LL_GPIO_PIN_2) == 0) key_value |= HW_KEY_L3;
  // if(LL_GPIO_IsInputPinSet(GPIOB, LL_GPIO_PIN_6) == 0) key_value |= HW_KEY_B;
  if(LL_GPIO_IsInputPinSet(GPIOB, LL_GPIO_PIN_7) == 0) key_value |= HW_KEY_A;
  if(LL_GPIO_IsInputPinSet(GPIOB, LL_GPIO_PIN_5) == 0) key_value |= HW_KEY_M2;
  // if(LL_GPIO_IsInputPinSet(GPIOB, LL_GPIO_PIN_4) == 0) key_value |= HW_KEY_M1;
  if(LL_GPIO_IsInputPinSet(GPIOB, LL_GPIO_PIN_3) == 0) key_value |= HW_KEY_START;
  if(LL_GPIO_IsInputPinSet(GPIOB, LL_GPIO_PIN_2) == 0) key_value |= HW_KEY_SELECT;
  if(LL_GPIO_IsInputPinSet(GPIOC, LL_GPIO_PIN_0) == 0) key_value |= HW_KEY_Y;
  if(LL_GPIO_IsInputPinSet(GPIOC, LL_GPIO_PIN_1) == 0) key_value |= HW_KEY_X;

  return key_value;
}

static void APP_ConfigureEXTI(void)
{
  /* Enable GPIOA clock */
  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOB);

  /* Configure PA0 as input mode */
  LL_GPIO_InitTypeDef GPIO_InitStruct;
  GPIO_InitStruct.Pin = LL_GPIO_PIN_1;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /* Set EXTI0 to connected to PA0 pin */
  LL_EXTI_SetEXTISource(LL_EXTI_CONFIG_PORTB,LL_EXTI_CONFIG_LINE1);

  /* Set EXTI0 to event patterns, falling edge trigger */
  LL_EXTI_InitTypeDef EXTI_InitStruct;
  EXTI_InitStruct.Line = LL_EXTI_LINE_1;
  EXTI_InitStruct.LineCommand = ENABLE;
  EXTI_InitStruct.Mode = LL_EXTI_MODE_IT;
  EXTI_InitStruct.Trigger = LL_EXTI_TRIGGER_RISING_FALLING;
  LL_EXTI_Init(&EXTI_InitStruct);

  /* Enable and set EXTI line0 Interrupt to the lowest priority */
  NVIC_SetPriority(EXTI0_1_IRQn, 1);
  NVIC_EnableIRQ(EXTI0_1_IRQn);
}

/**
  * @brief  Set SPI1 fearures
  * @param  None
  * @retval None
  */
static void APP_ConfigSpi(void)
{
  LL_SPI_InitTypeDef SPI_InitStruct = {0};

  LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* Enable SPI1 periphreal clock */
  LL_APB1_GRP2_EnableClock(LL_APB1_GRP2_PERIPH_SPI1);

  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOB);
  LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);

  /**SPI1 I/O configuration
  PB2   ------> SPI1_SCK
  PA1   ------> SPI1_MISO
  PA7   ------> SPI1_MOSI
  */
  GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
  LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_1;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  GPIO_InitStruct.Pin = LL_GPIO_PIN_0;
  GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
  GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
  GPIO_InitStruct.Alternate = LL_GPIO_AF_0;
  LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /* Enable SPI1 interrupt request */
  NVIC_SetPriority(SPI1_IRQn, 0);
  NVIC_EnableIRQ(SPI1_IRQn);

  /* Set SPI1 features */
  SPI_InitStruct.TransferDirection = LL_SPI_FULL_DUPLEX;
  SPI_InitStruct.Mode = LL_SPI_MODE_SLAVE;
  SPI_InitStruct.DataWidth = LL_SPI_DATAWIDTH_8BIT;
  SPI_InitStruct.ClockPolarity = LL_SPI_POLARITY_HIGH;
  SPI_InitStruct.ClockPhase = LL_SPI_PHASE_1EDGE;
  SPI_InitStruct.NSS = LL_SPI_NSS_SOFT;
  SPI_InitStruct.BaudRate = LL_SPI_BAUDRATEPRESCALER_DIV128;
  SPI_InitStruct.BitOrder = LL_SPI_MSB_FIRST;
  LL_SPI_Init(SPI1, &SPI_InitStruct);

  /* Configure SPI1 Transmission Interrupts */
  /* Enable TXE interrupt request */
  LL_SPI_EnableIT_TXE(SPI1);

  /* Enable RxNE interrupt request */
  LL_SPI_EnableIT_RXNE(SPI1);

  /* Enable SPI1 Error interrupt request */
  LL_SPI_EnableIT_ERR(SPI1);
}

/**
  * @brief  SPI1 receive callback
  * @param  None
  * @retval None
  */
void  APP_SpiRxCallback(void)
{
  /* Read data register to clear RxNE flag */
  SPI_RxBuff[SPI_RxIndex++] = LL_SPI_ReceiveData8(SPI1);
}

/**
  * @brief  SPI1 send callback
  * @param  None
  * @retval None
  */
void  APP_SpiTxCallback(void)
{
  /* Write data register to clear TxE flag */
  LL_SPI_TransmitData8(SPI1, SPI_TxBuff[SPI_TxIndex++]);
  // printf("t\n\r");
}

/**
  * @brief  SPI transfer error treatment callback
  * @param  None
  * @retval None
  */
void APP_SpiTransferErrorCallback(void)
{
  /* Disable RxNE interrupt request             */
  LL_SPI_DisableIT_RXNE(SPI1);

  /* Disable TXE interrupt request           */
  LL_SPI_DisableIT_TXE(SPI1);

  /* printf error notice */
  printf("SPI Transfer Error\n\r");
}

void APP_Spi_CS_EN(uint8_t en)
{
  SPI_RxIndex = 0;
  SPI_TxIndex = 0;
}
/**
  * @brief  Error handling function
  * @param  None
  * @retval None
  */
void APP_ErrorHandler(void)
{
  /* Infinite loop */
  while (1)
  {
  }
}

void *App_Memcpy(void *dst,const void *src,size_t size)
{
  char *psrc;  //源地址
  char *pdst;  //目标地址

  if(NULL == dst || NULL == src)
  {
      return NULL;
  }
  //源地址在前，对应上述情况2，需要自后向前拷贝
  if((src < dst)&&(char *)src+size > (char *)dst)
  {
      psrc = (char *)src + size - 1;
      pdst = (char *)dst + size - 1;
      while(size--)
      {
          *pdst-- = *psrc--;
      }
  }
  else    //源地址在后，对应上述第一种情况，直接逐个拷贝*pdst++=*psrc++即可
  {
      psrc = (char *)src;
      pdst = (char *)dst;
      while(size--)
      {
          *pdst++ = *psrc++;
      }
  }
  return pdst;
}

uint16_t calculate_check_sum(void *buf, uint16_t len)
{
	uint16_t i;
	uint16_t sum = 0;
	uint8_t *p;

	p = (uint8_t*)buf;
	//HEAD inglne  , 100 -SUM
	for(i=0; i<len; i++){
		sum += *(p+i);
	}
	return sum;
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file：Pointer to the source file name
  * @param  line：assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* User can add His own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* Infinite loop */
  while (1)
  {
  }
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT Puya *****END OF FILE******************/