Bool at45dbx_mem_check(void)
{
U8 df;
U16 status = 0;
// DF memory check.
for (df = 0; df < AT45DBX_MEM_CNT; df++)
{
// Select the DF memory to check.
at45dbx_chipselect_df(df, TRUE);
// Send the Status Register Read command.
spi_write(AT45DBX_SPI, AT45DBX_CMDC_RD_STATUS_REG);
// Send a dummy byte to read the status register.
spi_write_dummy();
spi_read(AT45DBX_SPI, &status);
// Unselect the checked DF memory.
at45dbx_chipselect_df(df, FALSE);
// Unexpected device density value.
if ((status & AT45DBX_MSK_DENSITY) < AT45DBX_DENSITY) return KO;
}
return OK;
}
bool at45dbx_mem_check(void)
{
uint8_t df;
uint8_t status = 0;
// DF memory check.
for (df = 0; df < AT45DBX_MEM_CNT; df++) {
// Select the DF memory to check.
at45dbx_chipselect_df(df, true);
// Send the Status Register Read command.
at45dbx_spi_write_byte(AT45DBX_CMDC_RD_STATUS_REG);
// Send a dummy byte to read the status register.
at45dbx_spi_read_byte(&status);
// Unselect the checked DF memory.
at45dbx_chipselect_df(df, false);
// Unexpected device density value.
if ((status & AT45DBX_MSK_DENSITY) < AT45DBX_DENSITY) {
return false;
}
}
return true;
}