Esempi in C++ (Cpp) per spi_slave_deselect

Esempio n. 1

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

void m25_write_status(u8 sr)
{
  spi_slave_select(SPI_SLAVE_FLASH);
  spi_xfer(SPI_BUS_FLASH, M25_WRSR);
  spi_xfer(SPI_BUS_FLASH, sr);
  spi_slave_deselect();
}

Esempio n. 2

File: max31855.c Progetto: JackBradach/max31855

/* Returns the 32-bit value representing temperature data from the module. */
static uint32_t max31855_read(void)
{
    uint32_t raw_reading;

    spi_slave_select(SPI_SLAVE_MAX31855);
    raw_reading = spi_read_dword();
    spi_slave_deselect();
    return raw_reading;
}

Esempio n. 3

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

u8 m25_read_status(void)
{
  u8 sr;

  spi_slave_select(SPI_SLAVE_FLASH);
  spi_xfer(SPI_BUS_FLASH, M25_RDSR);
  sr = spi_xfer(SPI_BUS_FLASH, 0x00);
  spi_slave_deselect();
  return sr;
}

Esempio n. 4

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

void m25_bulk_erase(void)
{
  spi_slave_select(SPI_SLAVE_FLASH);

  spi_xfer(SPI_BUS_FLASH, M25_BE);

  spi_slave_deselect();

  while(m25_read_status() & M25_SR_WIP);
}

Esempio n. 5

File: max2769.c Progetto: traliman/piksi_firmware

/** Write to one of the MAX2769 registers.
 *
 * \param addr MAX2769 register to write to.
 * \param data Data to write to register (28 bits).
 */
void max2769_write(u8 addr, u32 data)
{
  u32 write_word = ((data << 4) & 0xFFFFFFF0) | (addr & 0x0F);

  spi_slave_select(SPI_SLAVE_FRONTEND);
  spi_xfer(SPI_BUS_FRONTEND, (write_word >> 24) & 0xFF);
  spi_xfer(SPI_BUS_FRONTEND, (write_word >> 16) & 0xFF);
  spi_xfer(SPI_BUS_FRONTEND, (write_word >>  8) & 0xFF);
  spi_xfer(SPI_BUS_FRONTEND, (write_word >>  0) & 0xFF);
  spi_slave_deselect();
}

Esempio n. 6

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

u32 m25_read_id(void)
{
  u8 manf_id, mem_type, mem_capacity;

  spi_slave_select(SPI_SLAVE_FLASH);
  spi_xfer(SPI_BUS_FLASH, M25_RDID);
  manf_id = (u8)spi_xfer(SPI_BUS_FLASH, 0x00);
  mem_type = (u8)spi_xfer(SPI_BUS_FLASH, 0x00);
  mem_capacity = (u8)spi_xfer(SPI_BUS_FLASH, 0x00);
  spi_slave_deselect();

  return mem_capacity | mem_type << 8 | manf_id << 16;
}

Esempio n. 7

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

void m25_sector_erase(u32 addr)
{
  spi_slave_select(SPI_SLAVE_FLASH);

  spi_xfer(SPI_BUS_FLASH, M25_SE);

  spi_xfer(SPI_BUS_FLASH, (addr >> 16) & 0xFF);
  spi_xfer(SPI_BUS_FLASH, (addr >> 8) & 0xFF);
  spi_xfer(SPI_BUS_FLASH, addr & 0xFF);

  spi_slave_deselect();

  while(m25_read_status() & M25_SR_WIP);
}

Esempio n. 8

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

void m25_page_program(u32 addr, u8 len, u8 buff[])
{
  u32 i;

  spi_slave_select(SPI_SLAVE_FLASH);

  spi_xfer(SPI_BUS_FLASH, M25_PP);

  spi_xfer(SPI_BUS_FLASH, (addr >> 16) & 0xFF);
  spi_xfer(SPI_BUS_FLASH, (addr >> 8) & 0xFF);
  spi_xfer(SPI_BUS_FLASH, addr & 0xFF);

  for(i = 0; i < len; i++)
    spi_xfer(SPI_BUS_FLASH, buff[i]);

  spi_slave_deselect();

  while(m25_read_status() & M25_SR_WIP);
}

Esempio n. 9

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

void m25_read(u32 addr, u32 len, u8 *buff)
{
  spi_slave_select(SPI_SLAVE_FLASH);

//  spi_xfer(SPI_BUS_FLASH, M25_FAST_READ);
  spi_xfer(SPI_BUS_FLASH, M25_READ);

  spi_xfer(SPI_BUS_FLASH, (addr >> 16) & 0xFF);
  spi_xfer(SPI_BUS_FLASH, (addr >> 8) & 0xFF);
  spi_xfer(SPI_BUS_FLASH, addr & 0xFF);

//  spi_xfer(SPI_BUS_FLASH, 0x00); // Dummy byte


  for(u32 i=0; i < len; i++)
    buff[i] = spi_xfer(SPI_BUS_FLASH, 0x00);

  spi_slave_deselect();
}

Esempio n. 10

File: m25_flash.c Progetto: akibsayyed/Swift-Nav-Code

void m25_write_disable(void)
{
  spi_slave_select(SPI_SLAVE_FLASH);
  spi_xfer(SPI_BUS_FLASH, M25_WRDI);
  spi_slave_deselect();
}