void SPIClass::begin()
{
/* Set the pin mux, for the SCK, MOSI and MISO pins ONLY
*
* Leave the SS pin in GPIO mode (the application will control it)
* but set it's direction to output and initially high
*/
system("echo on > /sys/devices/pci0000:00/0000:00:07.1/power/control"); //disables SPI power management
pinMode(SPI_SS_GPIO_PIN, OUTPUT);
digitalWrite(SPI_SS_GPIO_PIN, HIGH);
muxSelectSpi(1);
if(fd <= 0)
{
this->fd = open(LINUX_SPIDEV, O_RDWR);
if (this->fd < 0) {
trace_error("Failed to open SPI device\n");
return;
}
}
/* Load default/last configuration */
this->setClockDivider(this->clkDiv);
this->setBitOrder(this->bitOrder);
this->setDataMode(this->mode);
}
void SPIClass::begin()
{
/* Set the pin mux, for the SCK, MOSI and MISO pins ONLY
*
* Leave the SS pin in GPIO mode (the application will control it)
* but set it's direction to output and initially high
*/
muxSelectDigitalPin(SPI_SS_GPIO_PIN);
pinMode(SPI_SS_GPIO_PIN, OUTPUT);
digitalWrite(SPI_SS_GPIO_PIN, HIGH);
muxSelectSpi(1);
this->fd = open(LINUX_SPIDEV, O_RDWR);
if (this->fd < 0) {
trace_error("Failed to open SPI device\n");
return;
}
/* Load default/last configuration */
this->setBitOrder(this->bitOrder);
this->setClockDivider(this->clkDiv);
this->setDataMode(this->mode);
}
