/**
* PIOS_Board_Init()
* initializes all the core subsystems on this specific hardware
* called from System/openpilot.c
*/
void PIOS_Board_Init(void) {
/* Remap AFIO pin */
//GPIO_PinRemapConfig( GPIO_Remap_SWJ_NoJTRST, ENABLE);
#ifdef PIOS_DEBUG_ENABLE_DEBUG_PINS
PIOS_DEBUG_Init(&pios_tim_servo_all_channels, NELEMENTS(pios_tim_servo_all_channels));
#endif /* PIOS_DEBUG_ENABLE_DEBUG_PINS */
/* Delay system */
PIOS_DELAY_Init();
#if defined(PIOS_INCLUDE_SPI)
/* Set up the SPI interface to the SD card */
if (PIOS_SPI_Init(&pios_spi_sdcard_id, &pios_spi_sdcard_cfg)) {
PIOS_Assert(0);
}
/* Enable and mount the SDCard */
PIOS_SDCARD_Init(pios_spi_sdcard_id);
PIOS_SDCARD_MountFS(0);
#endif /* PIOS_INCLUDE_SPI */
/* Initialize UAVObject libraries */
EventDispatcherInitialize();
UAVObjInitialize();
HwSettingsInitialize();
#if defined(PIOS_INCLUDE_RTC)
/* Initialize the real-time clock and its associated tick */
PIOS_RTC_Init(&pios_rtc_main_cfg);
#endif
/* Initialize the alarms library */
AlarmsInitialize();
/* Initialize the task monitor library */
TaskMonitorInitialize();
/* Set up pulse timers */
PIOS_TIM_InitClock(&tim_1_cfg);
PIOS_TIM_InitClock(&tim_3_cfg);
PIOS_TIM_InitClock(&tim_5_cfg);
PIOS_TIM_InitClock(&tim_4_cfg);
PIOS_TIM_InitClock(&tim_8_cfg);
/* Prepare the AHRS Comms upper layer protocol */
AhrsInitComms();
/* Set up the SPI interface to the AHRS */
if (PIOS_SPI_Init(&pios_spi_ahrs_id, &pios_spi_ahrs_cfg)) {
PIOS_Assert(0);
}
/* Bind the AHRS comms layer to the AHRS SPI link */
AhrsConnect(pios_spi_ahrs_id);
/* Configure the main IO port */
uint8_t hwsettings_op_mainport;
HwSettingsOP_MainPortGet(&hwsettings_op_mainport);
switch (hwsettings_op_mainport) {
case HWSETTINGS_OP_MAINPORT_DISABLED:
break;
case HWSETTINGS_OP_MAINPORT_TELEMETRY:
#if defined(PIOS_INCLUDE_TELEMETRY_RF)
{
uint32_t pios_usart_telem_rf_id;
if (PIOS_USART_Init(&pios_usart_telem_rf_id, &pios_usart_telem_cfg)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_RF_RX_BUF_LEN);
uint8_t * tx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_RF_TX_BUF_LEN);
PIOS_Assert(rx_buffer);
PIOS_Assert(tx_buffer);
if (PIOS_COM_Init(&pios_com_telem_rf_id, &pios_usart_com_driver, pios_usart_telem_rf_id,
rx_buffer, PIOS_COM_TELEM_RF_RX_BUF_LEN,
tx_buffer, PIOS_COM_TELEM_RF_TX_BUF_LEN)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_TELEMETRY_RF */
break;
}
/* Configure the flexi port */
uint8_t hwsettings_op_flexiport;
HwSettingsOP_FlexiPortGet(&hwsettings_op_flexiport);
switch (hwsettings_op_flexiport) {
case HWSETTINGS_OP_FLEXIPORT_DISABLED:
break;
case HWSETTINGS_OP_FLEXIPORT_GPS:
#if defined(PIOS_INCLUDE_GPS)
{
uint32_t pios_usart_gps_id;
if (PIOS_USART_Init(&pios_usart_gps_id, &pios_usart_gps_cfg)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_GPS_RX_BUF_LEN);
PIOS_Assert(rx_buffer);
if (PIOS_COM_Init(&pios_com_gps_id, &pios_usart_com_driver, pios_usart_gps_id,
rx_buffer, PIOS_COM_GPS_RX_BUF_LEN,
NULL, 0)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_GPS */
break;
}
#ifndef PIOS_DEBUG_ENABLE_DEBUG_PINS
PIOS_Servo_Init(&pios_servo_cfg);
#endif /* PIOS_DEBUG_ENABLE_DEBUG_PINS */
PIOS_ADC_Init();
PIOS_GPIO_Init();
/* Configure the rcvr port */
uint8_t hwsettings_rcvrport;
HwSettingsOP_RcvrPortGet(&hwsettings_rcvrport);
switch (hwsettings_rcvrport) {
case HWSETTINGS_OP_RCVRPORT_DISABLED:
break;
case HWSETTINGS_OP_RCVRPORT_DEBUG:
/* Not supported yet */
break;
case HWSETTINGS_OP_RCVRPORT_DSM2:
case HWSETTINGS_OP_RCVRPORT_DSMX10BIT:
case HWSETTINGS_OP_RCVRPORT_DSMX11BIT:
#if defined(PIOS_INCLUDE_DSM)
{
enum pios_dsm_proto proto;
switch (hwsettings_rcvrport) {
case HWSETTINGS_OP_RCVRPORT_DSM2:
proto = PIOS_DSM_PROTO_DSM2;
break;
case HWSETTINGS_OP_RCVRPORT_DSMX10BIT:
proto = PIOS_DSM_PROTO_DSMX10BIT;
break;
case HWSETTINGS_OP_RCVRPORT_DSMX11BIT:
proto = PIOS_DSM_PROTO_DSMX11BIT;
break;
default:
PIOS_Assert(0);
break;
}
uint32_t pios_usart_dsm_id;
if (PIOS_USART_Init(&pios_usart_dsm_id, &pios_usart_dsm_cfg)) {
PIOS_Assert(0);
}
uint32_t pios_dsm_id;
if (PIOS_DSM_Init(&pios_dsm_id,
&pios_dsm_cfg,
&pios_usart_com_driver,
pios_usart_dsm_id,
proto, 0)) {
PIOS_Assert(0);
}
uint32_t pios_dsm_rcvr_id;
if (PIOS_RCVR_Init(&pios_dsm_rcvr_id, &pios_dsm_rcvr_driver, pios_dsm_id)) {
PIOS_Assert(0);
}
pios_rcvr_group_map[MANUALCONTROLSETTINGS_CHANNELGROUPS_DSMMAINPORT] = pios_dsm_rcvr_id;
}
#endif
break;
case HWSETTINGS_OP_RCVRPORT_PWM:
#if defined(PIOS_INCLUDE_PWM)
{
uint32_t pios_pwm_id;
PIOS_PWM_Init(&pios_pwm_id, &pios_pwm_cfg);
uint32_t pios_pwm_rcvr_id;
if (PIOS_RCVR_Init(&pios_pwm_rcvr_id, &pios_pwm_rcvr_driver, pios_pwm_id)) {
PIOS_Assert(0);
}
pios_rcvr_group_map[MANUALCONTROLSETTINGS_CHANNELGROUPS_PWM] = pios_pwm_rcvr_id;
}
#endif /* PIOS_INCLUDE_PWM */
break;
case HWSETTINGS_OP_RCVRPORT_PPM:
#if defined(PIOS_INCLUDE_PPM)
{
uint32_t pios_ppm_id;
PIOS_PPM_Init(&pios_ppm_id, &pios_ppm_cfg);
uint32_t pios_ppm_rcvr_id;
if (PIOS_RCVR_Init(&pios_ppm_rcvr_id, &pios_ppm_rcvr_driver, pios_ppm_id)) {
PIOS_Assert(0);
}
pios_rcvr_group_map[MANUALCONTROLSETTINGS_CHANNELGROUPS_PPM] = pios_ppm_rcvr_id;
}
#endif /* PIOS_INCLUDE_PPM */
break;
}
#if defined(PIOS_INCLUDE_USB_HID)
uint32_t pios_usb_hid_id;
PIOS_USB_HID_Init(&pios_usb_hid_id, &pios_usb_hid_main_cfg);
#if defined(PIOS_INCLUDE_COM)
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_USB_RX_BUF_LEN);
uint8_t * tx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_USB_TX_BUF_LEN);
PIOS_Assert(rx_buffer);
PIOS_Assert(tx_buffer);
if (PIOS_COM_Init(&pios_com_telem_usb_id, &pios_usb_com_driver, pios_usb_hid_id,
rx_buffer, PIOS_COM_TELEM_USB_RX_BUF_LEN,
tx_buffer, PIOS_COM_TELEM_USB_TX_BUF_LEN)) {
PIOS_Assert(0);
}
#endif /* PIOS_INCLUDE_COM */
#endif /* PIOS_INCLUDE_USB_HID */
#if defined(PIOS_INCLUDE_I2C)
if (PIOS_I2C_Init(&pios_i2c_main_adapter_id, &pios_i2c_main_adapter_cfg)) {
PIOS_Assert(0);
}
#endif /* PIOS_INCLUDE_I2C */
PIOS_IAP_Init();
PIOS_WDG_Init();
}
/**
* PIOS_Board_Init()
* initializes all the core subsystems on this specific hardware
* called from System/openpilot.c
*/
void PIOS_Board_Init(void) {
/* Remap AFIO pin */
//GPIO_PinRemapConfig( GPIO_Remap_SWJ_NoJTRST, ENABLE);
#ifdef PIOS_DEBUG_ENABLE_DEBUG_PINS
PIOS_DEBUG_Init(&pios_tim_servo_all_channels, NELEMENTS(pios_tim_servo_all_channels));
#endif /* PIOS_DEBUG_ENABLE_DEBUG_PINS */
/* Delay system */
PIOS_DELAY_Init();
#if defined(PIOS_INCLUDE_SPI)
/* Set up the SPI interface to the SD card */
if (PIOS_SPI_Init(&pios_spi_sdcard_id, &pios_spi_sdcard_cfg)) {
PIOS_Assert(0);
}
/* Enable and mount the SDCard */
PIOS_SDCARD_Init(pios_spi_sdcard_id);
PIOS_SDCARD_MountFS(0);
#endif /* PIOS_INCLUDE_SPI */
/* Initialize UAVObject libraries */
EventDispatcherInitialize();
UAVObjInitialize();
#if defined(PIOS_INCLUDE_RTC)
/* Initialize the real-time clock and its associated tick */
PIOS_RTC_Init(&pios_rtc_main_cfg);
#endif
#if defined(PIOS_INCLUDE_LED)
PIOS_LED_Init(&pios_led_cfg);
#endif /* PIOS_INCLUDE_LED */
HwSettingsInitialize();
PIOS_WDG_Init();
/* Initialize the alarms library */
AlarmsInitialize();
PIOS_IAP_Init();
uint16_t boot_count = PIOS_IAP_ReadBootCount();
if (boot_count < 3) {
PIOS_IAP_WriteBootCount(++boot_count);
AlarmsClear(SYSTEMALARMS_ALARM_BOOTFAULT);
} else {
/* Too many failed boot attempts, force hwsettings to defaults */
HwSettingsSetDefaults(HwSettingsHandle(), 0);
AlarmsSet(SYSTEMALARMS_ALARM_BOOTFAULT, SYSTEMALARMS_ALARM_CRITICAL);
}
/* Initialize the task monitor library */
TaskMonitorInitialize();
/* Set up pulse timers */
PIOS_TIM_InitClock(&tim_1_cfg);
PIOS_TIM_InitClock(&tim_3_cfg);
PIOS_TIM_InitClock(&tim_5_cfg);
PIOS_TIM_InitClock(&tim_4_cfg);
PIOS_TIM_InitClock(&tim_8_cfg);
/* Prepare the AHRS Comms upper layer protocol */
AhrsInitComms();
/* Set up the SPI interface to the AHRS */
if (PIOS_SPI_Init(&pios_spi_ahrs_id, &pios_spi_ahrs_cfg)) {
PIOS_Assert(0);
}
/* Bind the AHRS comms layer to the AHRS SPI link */
AhrsConnect(pios_spi_ahrs_id);
#if defined(PIOS_INCLUDE_USB)
/* Initialize board specific USB data */
PIOS_USB_BOARD_DATA_Init();
/* Flags to determine if various USB interfaces are advertised */
bool usb_hid_present = false;
bool usb_cdc_present = false;
uint8_t hwsettings_usb_devicetype;
HwSettingsUSB_DeviceTypeGet(&hwsettings_usb_devicetype);
switch (hwsettings_usb_devicetype) {
case HWSETTINGS_USB_DEVICETYPE_HIDONLY:
if (PIOS_USB_DESC_HID_ONLY_Init()) {
PIOS_Assert(0);
}
usb_hid_present = true;
break;
case HWSETTINGS_USB_DEVICETYPE_HIDVCP:
if (PIOS_USB_DESC_HID_CDC_Init()) {
PIOS_Assert(0);
}
usb_hid_present = true;
usb_cdc_present = true;
break;
case HWSETTINGS_USB_DEVICETYPE_VCPONLY:
break;
default:
PIOS_Assert(0);
}
uint32_t pios_usb_id;
PIOS_USB_Init(&pios_usb_id, &pios_usb_main_cfg);
#if defined(PIOS_INCLUDE_USB_CDC)
/* Configure the USB VCP port */
uint8_t hwsettings_usb_vcpport;
HwSettingsUSB_VCPPortGet(&hwsettings_usb_vcpport);
if (!usb_cdc_present) {
/* Force VCP port function to disabled if we haven't advertised VCP in our USB descriptor */
hwsettings_usb_vcpport = HWSETTINGS_USB_VCPPORT_DISABLED;
}
switch (hwsettings_usb_vcpport) {
case HWSETTINGS_USB_VCPPORT_DISABLED:
break;
case HWSETTINGS_USB_VCPPORT_USBTELEMETRY:
#if defined(PIOS_INCLUDE_COM)
{
uint32_t pios_usb_cdc_id;
if (PIOS_USB_CDC_Init(&pios_usb_cdc_id, &pios_usb_cdc_cfg, pios_usb_id)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_USB_RX_BUF_LEN);
uint8_t * tx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_USB_TX_BUF_LEN);
PIOS_Assert(rx_buffer);
PIOS_Assert(tx_buffer);
if (PIOS_COM_Init(&pios_com_telem_usb_id, &pios_usb_cdc_com_driver, pios_usb_cdc_id,
rx_buffer, PIOS_COM_TELEM_USB_RX_BUF_LEN,
tx_buffer, PIOS_COM_TELEM_USB_TX_BUF_LEN)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_COM */
break;
case HWSETTINGS_USB_VCPPORT_COMBRIDGE:
#if defined(PIOS_INCLUDE_COM)
{
uint32_t pios_usb_cdc_id;
if (PIOS_USB_CDC_Init(&pios_usb_cdc_id, &pios_usb_cdc_cfg, pios_usb_id)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_BRIDGE_RX_BUF_LEN);
uint8_t * tx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_BRIDGE_TX_BUF_LEN);
PIOS_Assert(rx_buffer);
PIOS_Assert(tx_buffer);
if (PIOS_COM_Init(&pios_com_vcp_id, &pios_usb_cdc_com_driver, pios_usb_cdc_id,
rx_buffer, PIOS_COM_BRIDGE_RX_BUF_LEN,
tx_buffer, PIOS_COM_BRIDGE_TX_BUF_LEN)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_COM */
break;
}
#endif /* PIOS_INCLUDE_USB_CDC */
#if defined(PIOS_INCLUDE_USB_HID)
/* Configure the usb HID port */
uint8_t hwsettings_usb_hidport;
HwSettingsUSB_HIDPortGet(&hwsettings_usb_hidport);
if (!usb_hid_present) {
/* Force HID port function to disabled if we haven't advertised HID in our USB descriptor */
hwsettings_usb_hidport = HWSETTINGS_USB_HIDPORT_DISABLED;
}
switch (hwsettings_usb_hidport) {
case HWSETTINGS_USB_HIDPORT_DISABLED:
break;
case HWSETTINGS_USB_HIDPORT_USBTELEMETRY:
#if defined(PIOS_INCLUDE_COM)
{
uint32_t pios_usb_hid_id;
if (PIOS_USB_HID_Init(&pios_usb_hid_id, &pios_usb_hid_cfg, pios_usb_id)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_USB_RX_BUF_LEN);
uint8_t * tx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_USB_TX_BUF_LEN);
PIOS_Assert(rx_buffer);
PIOS_Assert(tx_buffer);
if (PIOS_COM_Init(&pios_com_telem_usb_id, &pios_usb_hid_com_driver, pios_usb_hid_id,
rx_buffer, PIOS_COM_TELEM_USB_RX_BUF_LEN,
tx_buffer, PIOS_COM_TELEM_USB_TX_BUF_LEN)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_COM */
break;
}
#endif /* PIOS_INCLUDE_USB_HID */
#endif /* PIOS_INCLUDE_USB */
/* Configure the main IO port */
uint8_t hwsettings_op_mainport;
HwSettingsOP_MainPortGet(&hwsettings_op_mainport);
switch (hwsettings_op_mainport) {
case HWSETTINGS_OP_MAINPORT_DISABLED:
break;
case HWSETTINGS_OP_MAINPORT_TELEMETRY:
#if defined(PIOS_INCLUDE_TELEMETRY_RF)
{
uint32_t pios_usart_telem_rf_id;
if (PIOS_USART_Init(&pios_usart_telem_rf_id, &pios_usart_telem_cfg)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_RF_RX_BUF_LEN);
uint8_t * tx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_TELEM_RF_TX_BUF_LEN);
PIOS_Assert(rx_buffer);
PIOS_Assert(tx_buffer);
if (PIOS_COM_Init(&pios_com_telem_rf_id, &pios_usart_com_driver, pios_usart_telem_rf_id,
rx_buffer, PIOS_COM_TELEM_RF_RX_BUF_LEN,
tx_buffer, PIOS_COM_TELEM_RF_TX_BUF_LEN)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_TELEMETRY_RF */
break;
}
/* Configure the flexi port */
uint8_t hwsettings_op_flexiport;
HwSettingsOP_FlexiPortGet(&hwsettings_op_flexiport);
switch (hwsettings_op_flexiport) {
case HWSETTINGS_OP_FLEXIPORT_DISABLED:
break;
case HWSETTINGS_OP_FLEXIPORT_GPS:
#if defined(PIOS_INCLUDE_GPS)
{
uint32_t pios_usart_gps_id;
if (PIOS_USART_Init(&pios_usart_gps_id, &pios_usart_gps_cfg)) {
PIOS_Assert(0);
}
uint8_t * rx_buffer = (uint8_t *) pvPortMalloc(PIOS_COM_GPS_RX_BUF_LEN);
PIOS_Assert(rx_buffer);
if (PIOS_COM_Init(&pios_com_gps_id, &pios_usart_com_driver, pios_usart_gps_id,
rx_buffer, PIOS_COM_GPS_RX_BUF_LEN,
NULL, 0)) {
PIOS_Assert(0);
}
}
#endif /* PIOS_INCLUDE_GPS */
break;
}
#ifndef PIOS_DEBUG_ENABLE_DEBUG_PINS
PIOS_Servo_Init(&pios_servo_cfg);
#endif /* PIOS_DEBUG_ENABLE_DEBUG_PINS */
PIOS_ADC_Init();
PIOS_GPIO_Init();
/* Configure the rcvr port */
uint8_t hwsettings_rcvrport;
HwSettingsOP_RcvrPortGet(&hwsettings_rcvrport);
switch (hwsettings_rcvrport) {
case HWSETTINGS_OP_RCVRPORT_DISABLED:
break;
case HWSETTINGS_OP_RCVRPORT_DEBUG:
/* Not supported yet */
break;
case HWSETTINGS_OP_RCVRPORT_DSM2:
case HWSETTINGS_OP_RCVRPORT_DSMX10BIT:
case HWSETTINGS_OP_RCVRPORT_DSMX11BIT:
#if defined(PIOS_INCLUDE_DSM)
{
enum pios_dsm_proto proto;
switch (hwsettings_rcvrport) {
case HWSETTINGS_OP_RCVRPORT_DSM2:
proto = PIOS_DSM_PROTO_DSM2;
break;
case HWSETTINGS_OP_RCVRPORT_DSMX10BIT:
proto = PIOS_DSM_PROTO_DSMX10BIT;
break;
case HWSETTINGS_OP_RCVRPORT_DSMX11BIT:
proto = PIOS_DSM_PROTO_DSMX11BIT;
break;
default:
PIOS_Assert(0);
break;
}
uint32_t pios_usart_dsm_id;
if (PIOS_USART_Init(&pios_usart_dsm_id, &pios_usart_dsm_cfg)) {
PIOS_Assert(0);
}
uint32_t pios_dsm_id;
if (PIOS_DSM_Init(&pios_dsm_id,
&pios_dsm_cfg,
&pios_usart_com_driver,
pios_usart_dsm_id,
proto, 0)) {
PIOS_Assert(0);
}
uint32_t pios_dsm_rcvr_id;
if (PIOS_RCVR_Init(&pios_dsm_rcvr_id, &pios_dsm_rcvr_driver, pios_dsm_id)) {
PIOS_Assert(0);
}
pios_rcvr_group_map[MANUALCONTROLSETTINGS_CHANNELGROUPS_DSMMAINPORT] = pios_dsm_rcvr_id;
}
#endif
break;
case HWSETTINGS_OP_RCVRPORT_PWM:
#if defined(PIOS_INCLUDE_PWM)
{
uint32_t pios_pwm_id;
PIOS_PWM_Init(&pios_pwm_id, &pios_pwm_cfg);
uint32_t pios_pwm_rcvr_id;
if (PIOS_RCVR_Init(&pios_pwm_rcvr_id, &pios_pwm_rcvr_driver, pios_pwm_id)) {
PIOS_Assert(0);
}
pios_rcvr_group_map[MANUALCONTROLSETTINGS_CHANNELGROUPS_PWM] = pios_pwm_rcvr_id;
}
#endif /* PIOS_INCLUDE_PWM */
break;
case HWSETTINGS_OP_RCVRPORT_PPM:
#if defined(PIOS_INCLUDE_PPM)
{
uint32_t pios_ppm_id;
PIOS_PPM_Init(&pios_ppm_id, &pios_ppm_cfg);
uint32_t pios_ppm_rcvr_id;
if (PIOS_RCVR_Init(&pios_ppm_rcvr_id, &pios_ppm_rcvr_driver, pios_ppm_id)) {
PIOS_Assert(0);
}
pios_rcvr_group_map[MANUALCONTROLSETTINGS_CHANNELGROUPS_PPM] = pios_ppm_rcvr_id;
}
#endif /* PIOS_INCLUDE_PPM */
break;
}
#if defined(PIOS_INCLUDE_I2C)
if (PIOS_I2C_Init(&pios_i2c_main_adapter_id, &pios_i2c_main_adapter_cfg)) {
PIOS_Assert(0);
}
#endif /* PIOS_INCLUDE_I2C */
/* Make sure we have at least one telemetry link configured or else fail initialization */
PIOS_Assert(pios_com_telem_rf_id || pios_com_telem_usb_id);
}
