コード例 #1
0
int MG2639_Cell::readWaitForResponses(const char * goodRsp, 
                                      const char * failRsp, unsigned int timeout)
{
	unsigned long timeIn = millis(); // Timestamp coming into function
	unsigned int received = 0; // received keeps track of number of chars read
	
	clearBuffer(); // Clear the class receive buffer (rxBuffer)
	while (timeIn + timeout > millis()) // While we haven't timed out
	{
		if (dataAvailable()) // If data is available on UART RX
		{
			// Increment received count & read byte to buffer
			received += readByteToBuffer();
			if (searchBuffer(goodRsp))
				return received; // If we've received [goodRsp], return received
			if (searchBuffer(failRsp)) // If we've received [failRsp]
				return ERROR_FAIL_RESPONSE; // return FAIL response error code
		}
	}
	
	if (received > 0) // If we received any characters
		return ERROR_UNKNOWN_RESPONSE;	// Return unkown response error code
	else // If we haven't received any characters
		return ERROR_TIMEOUT; // Return the timeout error code
}
コード例 #2
0
ファイル: SparkFunESP8266WiFi.cpp プロジェクト: efess/HIoS
int16_t ESP8266Class::readForResponse(const char * rsp, unsigned int timeout)
{
	unsigned long timeIn = millis();	// Timestamp coming into function
	unsigned int received = 0; // received keeps track of number of chars read
	
	clearBuffer();	// Clear the class receive buffer (esp8266RxBuffer)
	while (timeIn + timeout > millis()) // While we haven't timed out
	{
		if (_serial->available()) // If data is available on UART RX
		{
			received += readByteToBuffer();
			if (searchBuffer(rsp))	// Search the buffer for goodRsp
				return received;	// Return how number of chars read
		}
	}
	
	if (received > 0) // If we received any characters
		return ESP8266_RSP_UNKNOWN; // Return unkown response error code
	else // If we haven't received any characters
		return ESP8266_RSP_TIMEOUT; // Return the timeout error code
}
コード例 #3
0
int MG2639_Cell::changeBaud(unsigned long from, unsigned long to)
{
	int iRetVal;
	char changeBaudCmd[14];
	
	memset(changeBaudCmd, 0, 14);
	// Print something like "AT+IPR=9600" to changeBaudCmd string
	sprintf(changeBaudCmd, "%s=%lu", SET_BAUD_RATE, to);
	
	initializeUART(from); // Set UART baud to [from] baud	
	sendATCommand((const char *)changeBaudCmd); // Send the baud change command

	// SoftwareSerial included with Arduino 1.6.1+ is drastically improved.
	// We can reliably send strings at 115200
#if (ARDUINO >= 10601) 	
	iRetVal = readWaitForResponse(RESPONSE_OK, COMMAND_RESPONSE_TIME);
	initializeUART(to); // Set SS UART to [to] baud rate
	return iRetVal;
#else
	// Earlier versions of SS can't reliably read, but we should be able
	// to tell the difference between "ERROR" and "OK" due to the size
	// of the received string.
	unsigned long timeIn = millis();
	unsigned long timeout = 10; // Set timeout to 10ms
	int received = 0;
	
	clearBuffer(); // Clear rxBuffer
	while (timeIn + timeout > millis()) // Check for a timeout
	{
		if (dataAvailable()) // If data available on UART
		{
			received += readByteToBuffer(); // Read it into rxBuffer, inc received
		}
	}
	
	initializeUART(to); // Set SS UART to [to] baud rate
	
	return received; // Return number of characters received
#endif
}