void rf_path_set_direction(const rf_path_direction_t direction) {
/* Turn off TX and RX amplifiers, then enable based on direction and bypass state. */
switchctrl |= SWITCHCTRL_NO_TX_AMP_PWR | SWITCHCTRL_NO_RX_AMP_PWR;
switch(direction) {
case RF_PATH_DIRECTION_TX:
switchctrl |= SWITCHCTRL_TX;
if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
/* TX amplifier is in path, be sure to enable TX amplifier. */
switchctrl &= ~SWITCHCTRL_NO_TX_AMP_PWR;
}
rffc5071_tx();
if( switchctrl & SWITCHCTRL_MIX_BYPASS ) {
rffc5071_disable();
} else {
rffc5071_enable();
}
ssp1_set_mode_max5864();
max5864_tx();
ssp1_set_mode_max2837();
max2837_tx();
sgpio_configure(SGPIO_DIRECTION_TX);
break;
case RF_PATH_DIRECTION_RX:
switchctrl &= ~SWITCHCTRL_TX;
if( (switchctrl & SWITCHCTRL_AMP_BYPASS) == 0 ) {
/* RX amplifier is in path, be sure to enable RX amplifier. */
switchctrl &= ~SWITCHCTRL_NO_RX_AMP_PWR;
}
rffc5071_rx();
if( switchctrl & SWITCHCTRL_MIX_BYPASS ) {
rffc5071_disable();
} else {
rffc5071_enable();
}
ssp1_set_mode_max5864();
max5864_rx();
ssp1_set_mode_max2837();
max2837_rx();
sgpio_configure(SGPIO_DIRECTION_RX);
break;
case RF_PATH_DIRECTION_OFF:
default:
#ifdef HACKRF_ONE
rf_path_set_antenna(0);
#endif
/* Set RF path to receive direction when "off" */
switchctrl &= ~SWITCHCTRL_TX;
rffc5071_disable();
ssp1_set_mode_max5864();
max5864_standby();
ssp1_set_mode_max2837();
max2837_set_mode(MAX2837_MODE_STANDBY);
sgpio_configure(SGPIO_DIRECTION_RX);
break;
}
switchctrl_set(switchctrl);
}
//# MENU spectrum
void spectrum_menu()
{
lcdClear();
lcdDisplay();
getInputWaitRelease();
// RF initialization from ppack.c:
dac_init(false);
cpu_clock_set(204); // WARP SPEED! :-)
hackrf_clock_init();
rf_path_pin_setup();
/* Configure external clock in */
scu_pinmux(SCU_PINMUX_GP_CLKIN, SCU_CLK_IN | SCU_CONF_FUNCTION1);
sgpio_configure_pin_functions();
ON(EN_VDD);
ON(EN_1V8);
OFF(MIC_AMP_DIS);
delayms(500); // doesn't work without
cpu_clock_set(204); // WARP SPEED! :-)
si5351_init();
portapack_init();
while(1)
{
switch(getInput())
{
case BTN_UP:
displayMode=MODE_WATERFALL;
break;
case BTN_DOWN:
displayMode=MODE_SPECTRUM;
break;
case BTN_LEFT:
freq -= 2000000;
ssp1_set_mode_max2837();
set_freq(freq);
break;
case BTN_RIGHT:
freq += 2000000;
ssp1_set_mode_max2837();
set_freq(freq);
break;
case BTN_ENTER:
//FIXME: unset the callback, reset the clockspeed, tidy up
nvic_disable_irq(NVIC_DMA_IRQ);
OFF(EN_VDD);
OFF(EN_1V8);
ON(MIC_AMP_DIS);
systick_set_clocksource(0);
systick_set_reload(12e6/SYSTICKSPEED/1000);
return;
}
}
}
int main(void)
{
const uint32_t freq = 2441000000U;
pin_setup();
gpio_set(PORT_EN1V8, PIN_EN1V8); /* 1V8 on */
cpu_clock_init();
ssp1_init();
gpio_set(PORT_LED1_3, (PIN_LED1)); /* LED1 on */
ssp1_set_mode_max2837();
max2837_setup();
rffc5071_setup();
gpio_set(PORT_LED1_3, (PIN_LED2)); /* LED2 on */
max2837_set_frequency(freq);
max2837_start();
max2837_tx();
gpio_set(PORT_LED1_3, (PIN_LED3)); /* LED3 on */
while (1);
max2837_stop();
return 0;
}
void rf_path_init(void) {
ssp1_set_mode_max5864();
max5864_shutdown();
ssp1_set_mode_max2837();
max2837_setup();
max2837_start();
rffc5071_setup();
switchctrl_set(switchctrl);
}
void rf_path_init(rf_path_t* const rf_path) {
ssp1_set_mode_max5864();
max5864_setup(&max5864);
max5864_shutdown(&max5864);
ssp1_set_mode_max2837();
max2837_setup(&max2837);
max2837_start(&max2837);
rffc5071_setup(&rffc5072);
switchctrl_set(rf_path, switchctrl);
}
