Method ExchangeData

src/SBC/SbcInterface.cpp:164–1322

}

void SbcInterface::ExchangeData() noexcept
{
	// Process incoming packets
	bool codeBufferAvailable = true;
	for (size_t i = 0; i < transfer.PacketsToRead(); i++)
	{
		const PacketHeader * const packet = transfer.ReadPacket();
		if (packet == nullptr)
		{
			if (reprap.Debug(Module::SbcInterface))
			{
				debugPrintf("Error trying to read next SPI packet\n");
			}
			break;
		}

		if (packet->request >= (uint16_t)SbcRequest::InvalidRequest)
		{
			REPORT_INTERNAL_ERROR;
			break;
		}

		bool packetAcknowledged = true;
		switch ((SbcRequest)packet->request)
		{
		// Perform an emergency stop
		case SbcRequest::EmergencyStop:
			reprap.EmergencyStop();
			break;

		// Reset the controller
		case SbcRequest::Reset:
			reprap.EmergencyStop();							// turn off heaters and motors, tell expansion boards to reset
			SoftwareReset(SoftwareResetReason::userFromSbc);
			break;

		// Perform a G/M/T-code
		case SbcRequest::Code:
		{
			// Read the next code
			if (packet->length == 0)
			{
				reprap.GetPlatform().Message(WarningMessage, "Received empty binary code, discarding\n");
				break;
			}

			const CodeHeader *code = reinterpret_cast<const CodeHeader*>(transfer.ReadData(packet->length));
			const GCodeChannel channel(code->channel);
			if (channel.IsValid())
			{
				GCodeBuffer * const gb = reprap.GetGCodes().GetGCodeBuffer(channel);
				if (gb == nullptr)
				{
					REPORT_INTERNAL_ERROR;
					break;
				}

				if (gb->IsInvalidated())