Ejemplos de XNV_SPI_BEGIN en C++ (Cpp)

Ejemplo n.º 1

Archivo: SimpleBLESPIFlash.c Proyecto: delbert77/BLE-CC2541-1.4.0

void HalSPIRead(uint32 addr, uint8 *pBuf, uint16 len)
{

  uint8 shdw = P1DIR;
  P1DIR |= BV(3);
  
  XNV_SPI_BEGIN();
  do {
    xnvSPIWrite(XNV_STAT_CMD);
  } while (XNV_SPI_RX() & XNV_STAT_WIP);
  XNV_SPI_END();
  asm("NOP"); asm("NOP");

  XNV_SPI_BEGIN();
  xnvSPIWrite(XNV_READ_CMD);
  xnvSPIWrite(addr >> 16);
  xnvSPIWrite(addr >> 8);
  xnvSPIWrite(addr);
  xnvSPIWrite(0);

  while (len--)
  {
    xnvSPIWrite(0);
    *pBuf++ = XNV_SPI_RX();
  }
  XNV_SPI_END();

  P1DIR = shdw;
}

Ejemplo n.º 2

Archivo: hal_oad.c Proyecto: 12019/hellowsn

/*********************************************************************
 * @fn      HalSPIRead
 *
 * @brief   Read from the external NV storage via SPI.
 *
 * @param   addr - Offset into the external NV.
 * @param   pBuf - Pointer to the buffer in which to copy the bytes read from external NV.
 * @param   len - Number of bytes to read from external NV.
 *
 * @return  None.
 *********************************************************************/
static void HalSPIRead(uint32 addr, uint8 *pBuf, uint16 len)
{
#if !HAL_OAD_BOOT_CODE
  uint8 shdw = P1DIR;
  halIntState_t his;
  HAL_ENTER_CRITICAL_SECTION(his);
  P1DIR |= BV(3);
#endif

  XNV_SPI_BEGIN();
  do {
    xnvSPIWrite(XNV_STAT_CMD);
  } while (XNV_SPI_RX() & XNV_STAT_WIP);
  XNV_SPI_END();
  asm("NOP"); asm("NOP");

  XNV_SPI_BEGIN();
  xnvSPIWrite(XNV_READ_CMD);
  xnvSPIWrite(addr >> 16);
  xnvSPIWrite(addr >> 8);
  xnvSPIWrite(addr);
  xnvSPIWrite(0);

  while (len--)
  {
    xnvSPIWrite(0);
    *pBuf++ = XNV_SPI_RX();
  }
  XNV_SPI_END();

#if !HAL_OAD_BOOT_CODE
  P1DIR = shdw;
  HAL_EXIT_CRITICAL_SECTION(his);
#endif
}

Ejemplo n.º 3

Archivo: hal_ota.c Proyecto: binwulang/zstack-agriculture

/******************************************************************************
 * @fn      HalSPIWrite
 *
 * @brief   Write to the external NV storage via SPI.
 *
 * @param   addr - Offset into the external NV.
 * @param   pBuf - Pointer to the buffer in from which to write bytes to external NV.
 * @param   len - Number of bytes to write to external NV.
 *
 * @return  None.
 *****************************************************************************/
static void HalSPIWrite(uint32 addr, uint8 *pBuf, uint16 len)
{
  uint8 cnt;
#if !HAL_OTA_BOOT_CODE
  uint8 shdw = P1DIR;
  halIntState_t his;
  HAL_ENTER_CRITICAL_SECTION(his);
  P1DIR |= BV(3);
#endif

  while (len)
  {
    XNV_SPI_BEGIN();
    do
    {
      xnvSPIWrite(XNV_STAT_CMD);
    } while (XNV_SPI_RX() & XNV_STAT_WIP);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");

    XNV_SPI_BEGIN();
    xnvSPIWrite(XNV_WREN_CMD);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");

    XNV_SPI_BEGIN();
    xnvSPIWrite(XNV_WRPG_CMD);
    xnvSPIWrite(addr >> 16);
    xnvSPIWrite(addr >> 8);
    xnvSPIWrite(addr);

    // Can only write within any one page boundary, so prepare for next page write if bytes remain.
    cnt = 0 - (uint8)addr;
    if (cnt)
    {
      addr += cnt;
    }
    else
    {
      addr += 256;
    }

    do
    {
      xnvSPIWrite(*pBuf++);
      cnt--;
      len--;
    } while (len && cnt);
    XNV_SPI_END();
  }

#if !HAL_OTA_BOOT_CODE
  P1DIR = shdw;
  HAL_EXIT_CRITICAL_SECTION(his);
#endif
}

Ejemplo n.º 4

Archivo: SimpleBLESPIFlash.c Proyecto: delbert77/BLE-CC2541-1.4.0

 void HalSPIWrite(uint32 addr, uint8 *pBuf, uint16 len)
{
  uint8 cnt;
  uint8 shdw = P1DIR;
  P1DIR |= BV(3);
  while (len)
  {
    XNV_SPI_BEGIN();
    do {
      xnvSPIWrite(XNV_STAT_CMD);
    } while (XNV_SPI_RX() & XNV_STAT_WIP);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");

    XNV_SPI_BEGIN();
    xnvSPIWrite(XNV_WREN_CMD);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");

    XNV_SPI_BEGIN();
    xnvSPIWrite(XNV_WRPG_CMD);
    xnvSPIWrite(addr >> 16);
    xnvSPIWrite(addr >> 8);
    xnvSPIWrite(addr);

    // Can only write within any one page boundary, so prepare for next page write if bytes remain.
    cnt = 0 - (uint8)addr;
    if (cnt)
    {
      addr += cnt;
    }
    else
    {
      addr += 256;
    }

    do
    {
      xnvSPIWrite(*pBuf++);
      cnt--;
      len--;
    } while (len && cnt);
    XNV_SPI_END();
  }
  P1DIR = shdw;
}

Ejemplo n.º 5

Archivo: SimpleBLESPIFlash.c Proyecto: delbert77/BLE-CC2541-1.4.0

void HalSPIErase()
{
   
    
    XNV_SPI_BEGIN();
    do {
      xnvSPIWrite(XNV_STAT_CMD);
    } while (XNV_SPI_RX() & XNV_STAT_WIP);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");
    
    XNV_SPI_BEGIN();
    xnvSPIWrite(XNV_WREN_CMD);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");
    
    XNV_SPI_BEGIN();
    xnvSPIWrite(XNV_ERASE_CMD);
    XNV_SPI_END();
    asm("NOP"); asm("NOP");
    
    
}