示例#1
0
文件: can.hpp 项目: ArduPilot/uavcan
    int init(DelayCallable delay_callable, uavcan::uint32_t& inout_bitrate = BitRateAutoDetect)
    {
        if (inout_bitrate > 0)
        {
            return driver.init(inout_bitrate, CanIface::NormalMode);
        }
        else
        {
            static const uavcan::uint32_t StandardBitRates[] =
            {
                1000000,
                500000,
                250000,
                125000
            };

            for (uavcan::uint8_t br = 0; br < sizeof(StandardBitRates) / sizeof(StandardBitRates[0]); br++)
            {
                inout_bitrate = StandardBitRates[br];

                const int res = driver.init(inout_bitrate, CanIface::SilentMode);

                delay_callable();

                if (res >= 0)
                {
                    for (uavcan::uint8_t iface = 0; iface < driver.getNumIfaces(); iface++)
                    {
                        if (!driver.getIface(iface)->isRxBufferEmpty())
                        {
                            // Re-initializing in normal mode
                            return driver.init(inout_bitrate, CanIface::NormalMode);
                        }
                    }
                }
            }

            return -ErrBitRateNotDetected;
        }
    }