update

app/FingerPrint_API.cpp

@@ -50,6 +50,31 @@ int CFingerPrint::ReadSystemParameters(uint8_t aResponse[17])
 	return error;
 }
 
+int CFingerPrint::SetSystemParameter(uint8_t regAddr, uint8_t value)
+{
+	uint8_t aPayload[] = {
+		COMMAND_SETSYSPARA,
+		regAddr,
+		value
+	};
+
+	Write(IDENT_COMMAND, aPayload, sizeof(aPayload));
+
+	FingerPrintIdent ident;
+	uint8_t aResponse[1];
+	int ret = Recv(&ident, aResponse, sizeof(aResponse));
+	m_RecvState = RECV_DROP;
+
+	if(ret < 0)
+		return ret;
+
+	if(ident != IDENT_ACK)
+		return ERROR_COMMUNICATION;
+
+	uint8_t error = aResponse[0];
+	return error;
+}
+
 int CFingerPrint::DeleteTemplate(uint16_t positionStart, uint16_t count)
 {
 	uint8_t aPayload[] = {