/**
* Initialize the driver, must be called before any other routines.
*
* Attempts to detect a connected m25p16. If found, true is returned and device capacity can be fetched with
* m25p16_getGeometry().
*/
bool m25p16_init(ioTag_t csTag)
{
/*
if we have already detected a flash device we can simply exit
TODO: change the init param in favour of flash CFG when ParamGroups work is done
then cs pin can be specified in hardware_revision.c or config.c (dependent on revision).
*/
if (geometry.sectors) {
return true;
}
if (csTag) {
m25p16CsPin = IOGetByTag(csTag);
} else {
#ifdef M25P16_CS_PIN
m25p16CsPin = IOGetByTag(IO_TAG(M25P16_CS_PIN));
#else
return false;
#endif
}
IOInit(m25p16CsPin, OWNER_FLASH_CS, 0);
IOConfigGPIO(m25p16CsPin, SPI_IO_CS_CFG);
DISABLE_M25P16;
#ifndef M25P16_SPI_SHARED
//Maximum speed for standard READ command is 20mHz, other commands tolerate 25mHz
spiSetDivisor(M25P16_SPI_INSTANCE, SPI_CLOCK_FAST);
#endif
return m25p16_readIdentification();
}
/**
* Initialize the driver, must be called before any other routines.
*
* Attempts to detect a connected m25p16. If found, true is returned and device capacity can be fetched with
* m25p16_getGeometry().
*/
bool m25p16_init()
{
//Maximum speed for standard READ command is 20mHz, other commands tolerate 25mHz
spiSetDivisor(M25P16_SPI_INSTANCE, HIGH_SPEED_SPI);
return m25p16_readIdentification();
}
/**
* Initialize the driver, must be called before any other routines.
*
* Attempts to detect a connected m25p16. If found, true is returned and device capacity can be fetched with
* m25p16_getGeometry().
*/
bool m25p16_init()
{
//Maximum speed for standard READ command is 20mHz, other commands tolerate 25mHz
#ifdef STM32F40_41xxx
spiSetDivisor(M25P16_SPI_INSTANCE, SPI_21MHZ_CLOCK_DIVIDER);
#else
spiSetDivisor(M25P16_SPI_INSTANCE, SPI_18MHZ_CLOCK_DIVIDER);
#endif
return m25p16_readIdentification();
}
/**
* Initialize the driver, must be called before any other routines.
*
* Attempts to detect a connected m25p16. If found, true is returned and device capacity can be fetched with
* m25p16_getGeometry().
*/
bool m25p16_init()
{
#ifdef M25P16_CS_PIN
m25p16CsPin = IOGetByTag(IO_TAG(M25P16_CS_PIN));
#endif
IOInit(m25p16CsPin, OWNER_FLASH, RESOURCE_SPI_CS, 0);
IOConfigGPIO(m25p16CsPin, SPI_IO_CS_CFG);
DISABLE_M25P16;
#ifndef M25P16_SPI_SHARED
//Maximum speed for standard READ command is 20mHz, other commands tolerate 25mHz
spiSetDivisor(M25P16_SPI_INSTANCE, SPI_CLOCK_FAST);
#endif
return m25p16_readIdentification();
}
