RPC: fix examples (again)

Author: facchinm

libraries/RPC/examples/PingPong_RAW/PingPong_RAW.ino

@@ -16,7 +16,7 @@ void recv_callback(const uint8_t *buf, size_t len) {
     Serial.println();
     #else
     const uint8_t msg[] = "Pong!";
-    RPC.write(&msg[0], sizeof(msg), false, true);
+    RPC.write(&msg[0], sizeof(msg), true);
     #endif
 }
 

libraries/RPC/examples/PortentaX8_EchoServer/PortentaX8_EchoServer.ino

@@ -1,42 +1,69 @@
-#include "RPC.h"
 #include "SerialRPC.h"
+#include "RPC.h"
 
 /*
- * This sketch demonstrates how to interact with the Portenta X8 Serial port (over USB)
- * On the board, launch both 'proxy' and 'example' binaries (from https://github.com/bcmi-labs/portentax8-m4-proxy)
- * The M4 provides the 'subtract' API (which will be invoked by 'example'
- * It also provides a full duplex Serial-like interface that is proxies through the serial monitor
- * Last but not leas, when you write 'echo' the corresponding function in 'example' will be triggered
- */
+   This sketch demonstrates how to interact with the Portenta X8 Serial port (over USB)
+   On the board, launch both 'proxy' and 'example' binaries (from https://github.com/arduino/portentax8-m4-proxy)
+   The M4 provides the 'subtract' API (which will be invoked by 'example'
+   It also provides a full duplex Serial-like interface that is proxies through the serial monitor
+   Last but not leas, when you write 'echo' the corresponding function in 'example' will be triggered
+*/
 
 int subtract(int a, int b) {
-  return a-b;
+  return a - b;
 }
 
+int led_status = 0;
+
 void setup() {
   // put your setup code here, to run once:
   Serial.begin(115200);
+  pinMode(LED_BUILTIN, OUTPUT);
   RPC.bind("subtract", subtract);
   delay(1000);
 }
 
 int i = 0;
 void loop() {
 
-  //RPC.print("hello");
-  //RPC.send("echo", "test");
-  //auto res = RPC.call("add", 5, 8).as<int>();
-  //RPC.send("echo", String(res).c_str());
+  if (millis() % 1000 == 0) {
+    Serial.println("loop");
+    delay(2);
+  }
 
   String str = "";
   while (Serial.available()) {
     str += (char)Serial.read();
   }
   if (str != "") {
-    Serial.print(str);
+    //Serial.print(str);
+  }
+
+  if (str.startsWith("whoami")) {
+    digitalWrite(LED_BUILTIN, HIGH);
+    auto res = RPC.call("whoami").as<std::string>();
+    Serial.println(res.c_str());
+    digitalWrite(LED_BUILTIN, LOW);
   }
+
+  if (str.startsWith("divide")) {
+    float a = random() % 15000;
+    float b = random() % 15000;
+    Serial.println(String(a) + " / " + String(b));
+    auto res = RPC.call("divide", a, b).as<float>();
+    Serial.println(String(a) + " / " + String(b) + " = " + String(res));
+  }
+
+  if (str.startsWith("add")) {
+    int a = random() % 15000;
+    int b = random() % 15000;
+    Serial.println(String(a) + " + " + String(b));
+    auto res = RPC.call("add", a, b).as<int>();
+    Serial.println(String(a) + " + " + String(b) + " = " + String(res));
+  }
+
   if (str.startsWith("echo")) {
-    delay(100);
-    RPC.send("echo", "test");
+    auto res = RPC.call("echo", "X8").as<std::string>();
+    Serial.println(res.c_str());
   }
 }