/**
* \brief Initialize SAM4E_XPRO board for low power test.
*/
void init_specific_board(void)
{
/* Disable all Extra functions in matrix except for SWD CLK/IO */
matrix_set_system_io(0x00001C30);
/* Configure all PIOs as inputs to save power */
pio_set_input(PIOA, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOB, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOC, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOD, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOE, 0xFFFFFFFF, PIO_PULLUP);
/* Disable USB Clock */
pmc_disable_udpck();
/* Disable pull-up on PHY */
pio_pull_up(PIOD, PIO_PD0 | PIO_PD4 | PIO_PD5 | PIO_PD6 | PIO_PD7, 0);
/* Hold PHY in reset to avoid the clock output switching */
pio_set_output(PIOD, PIO_PD31, 0, 0, 0);
/* Disable pull-up on VBUS */
pio_pull_up(PIOE, PIO_PE2, 0);
/* Disable PIO pull-up for PB10(USB_DDM), PB11(USB_DDP) */
pio_pull_up(PIOB, PIO_PB10 | PIO_PB11, 0);
/* Enable the PMC clocks of push button for wakeup */
pmc_enable_periph_clk(ID_PIOE);
pio_handler_set_priority(PIOE, PIOE_IRQn, IRQ_PRIOR_PIO);
}
WEAK void platform_init_system_clocks( void )
{
sysclk_init();
/* Switch Slow Clock source to external 32K crystal */
pmc_switch_sclk_to_32kxtal( 0 );
while( pmc_osc_is_ready_32kxtal( ) == 0 )
{
}
pmc_disable_udpck( );
}
/**
* \brief Initialize SAM4E_EK board for low power test.
*/
void init_specific_board(void)
{
/* Configure all PIOs as inputs to save power */
pio_set_input(PIOA, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOB, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOC, 0xFFFFFFFF, PIO_PULLUP);
/* Disable USB Clock */
pmc_disable_udpck();
/* Disable PIO pull-up for PB10(USB_DDM), PB11(USB_DDP) */
pio_pull_up(PIOB, (0x3 << 10), 0);
/* Disable PIO pull-up for PC21(USB_CNX) */
pio_pull_up(PIOC, (0x1 << 21), 0);
/* Enable the PMC clocks of push button for wakeup */
pmc_enable_periph_clk(ID_PIOA);
pio_handler_set_priority(PIOA, PIOA_IRQn, IRQ_PRIOR_PIO);
}
/**
* \brief Initialize SAM3N_EK board for low power test.
*/
void init_specific_board(void)
{
/* Configure all PIOs as inputs to save power */
pio_set_input(PIOA, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOB, 0x0FFFFFFF, PIO_PULLUP); /* Exclude JTAG pins */
pio_set_input(PIOC, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOD, 0x7FFFFFFF, PIO_PULLUP);
pio_set_input(PIOE, 0xFFFFFFFF, PIO_PULLUP);
pio_set_input(PIOF, 0x3F, PIO_PULLUP);
/* Disable USB Clock */
pmc_disable_udpck();
pmc_disable_upll_clock();
/* Disable PIO pull-up for PB4, PB5, PB6, PB7 */
pio_pull_up(PIOB, (0xF << 4), 0);
/* Initialize ADC pin as ADC input mode to save power */
adc_enable_channel(ADC, ADC_CHANNEL_1);
/* Enable the PMC clocks of push button for wakeup */
pmc_enable_periph_clk(ID_PIOB);
pio_handler_set_priority(PIOB, PIOB_IRQn, IRQ_PRIOR_PIO);
}
/**
* \brief Disable full speed USB clock.
*
* \note This implementation does not switch off the PLL, it just turns off the USB clock.
*/
void sysclk_disable_usb(void)
{
pmc_disable_udpck();
}