Einfaches mbed RPC Beispiel

Dependencies:   EthernetInterface HttpServer mbed-rtos mbed

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Remote Procedure Call (RPC - „Aufruf einer fernen Prozedur“) ist eine Technik zur Realisierung von Interprozesskommunikation. Sie ermöglicht den Aufruf von Funktionen in anderen Adressräumen. Im Normalfall werden die aufgerufenen Funktionen auf einem anderen Computer als das aufrufende Programm ausgeführt. Es existieren viele Implementierungen dieser Technik, in der Regel sind sie untereinander nicht kompatibel

Die mbed Plattform beinhaltet eine RPC Library, welche ausgesuchte mbed Objekte (DigitalPin, DigitalOut etc.) mittels Serieller Schnittstelle oder via HTTP Aufrufen, zur Verfügung stellt.

Die mbed RCP Klassen verwenden C++ Templates, siehe Zeilen mit <Argument> und den Namespace RPC, siehe Zeilen mit RPC::.

Client

mbed-rpc/parse_pins.cpp

Committer:
stefan1691
Date:
2015-05-27
Revision:
13:b7380bc60ad2
Parent:
11:43e28c85fd75

File content as of revision 13:b7380bc60ad2:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include "port_api.h"

namespace mbed {

PinName parse_pins(const char *str) {
#if defined(TARGET_LPC1768) || defined(TARGET_LPC11U24) || defined(TARGET_LPC2368)
    static const PinName pin_names[] = {p5, p6, p7, p8, p9, p10, p11, p12, p13, p14
                                , p15, p16, p17, p18, p19, p20, p21, p22, p23
                                , p24, p25, p26, p27, p28, p29, p30};
#elif defined(TARGET_LPC1114)
    static const PinName pin_names[] = {dp1, dp2, dp4, dp5, dp6, dp9, dp10, dp11
                                , dp13, dp14, dp15, dp16, dp17, dp18, dp23
                                , dp24, dp25, dp26, dp27, dp28};
#elif defined(TARGET_LPC4088)
    static const PinName pin_names[] = {NC, NC, NC, NC, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14
                                , p15, p16, p17, p18, p19, p20, NC, NC, p23
                                , p24, p25, p26, p27, p28, p29, p30, p31, p32
                                , p33, p34, NC, NC, p37, p38, p39, NC, NC, NC, NC, NC, NC, NC};
#elif defined(TARGET_LPC4088_DM)
    static const PinName pin_names[] = {p1, p2, p3, p4, NC, NC, p7, p8, p9, p10, p11, p12, p13, p14
                                , p15, p16, p17, p18, p19, p20, p21, p22, p23
                                , p24, p25, p26, NC, NC, p29, p30, NC, NC
                                , NC, NC, NC, NC, NC, NC, NC, NC, p41, p42, p43, p44, p45, p46};
#endif

#if defined(TARGET_LPC1768) || defined(TARGET_LPC11U24) || defined(TARGET_LPC2368) || defined(TARGET_LPC812) || defined(TARGET_LPC4088) || defined(TARGET_LPC4088_DM) || defined(TARGET_LPC1114)
    if (str[0] == 'P') {              // Pn_n
        uint32_t port = str[1] - '0';
        uint32_t pin  = str[3] - '0'; // Pn_n
        uint32_t pin2 = str[4] - '0'; // Pn_nn
        if (pin2 <= 9) {
            pin = pin * 10 + pin2;
        }
        return port_pin((PortName)port, pin);

#elif defined(TARGET_KL25Z) || defined(TARGET_KL05Z) || defined(TARGET_KL46Z) || defined(TARGET_K64F)
    if (str[0] == 'P' && str[1] == 'T') {   // PTxn
        uint32_t port = str[2] - 'A';
        uint32_t pin  = str[3] - '0';       // PTxn
        uint32_t pin2 = str[4] - '0';       // PTxnn

        if (pin2 <= 9) {
            pin = pin * 10 + pin2;
        }
        return port_pin((PortName)port, pin);
#endif

#if defined(TARGET_LPC1768) || defined(TARGET_LPC11U24) || defined(TARGET_LPC2368)
    } else if (str[0] == 'p') {       // pn
        uint32_t pin  = str[1] - '0'; // pn
        uint32_t pin2 = str[2] - '0'; // pnn
        if (pin2 <= 9) {
            pin = pin * 10 + pin2;
        }
        if (pin < 5 || pin > 30) {
            return NC;
        }
        return pin_names[pin - 5];
#elif defined(TARGET_LPC4088) || defined(TARGET_LPC4088_DM)
    } else if (str[0] == 'p') {       // pn
        uint32_t pin  = str[1] - '0'; // pn
        uint32_t pin2 = str[2] - '0'; // pnn
        if (pin2 <= 9) {
            pin = pin * 10 + pin2;
        }
        if (pin < 1 || pin > 46) {
            return NC;
        }
        return pin_names[pin - 1];
#endif

    } else if (str[0] == 'L') {  // LEDn
        switch (str[3]) {
            case '1' : return LED1;
            case '2' : return LED2;
            case '3' : return LED3;
            case '4' : return LED4;
        }

    } else if (str[0] == 'U') {  // USB?X
        switch (str[3]) {
            case 'T' : return USBTX;
            case 'R' : return USBRX;
        }
    }

    return NC;
}

}