Diff: main.cpp

Revision:

12:f1856a0b8ced

Parent:

11:0309bef74ba8

Child:

13:f1649dc31b04

--- a/main.cpp	Wed Feb 15 14:04:02 2017 -0600
+++ b/main.cpp	Tue Nov 12 19:21:49 2019 +0000
@@ -1,22 +1,128 @@
 #include "mbed.h"
 #include "rtos.h"
+
+#include "mbed_rpc.h"
+#include "uLCD_4DGL.h"
+
+uLCD_4DGL uLCD(p9,p10,p11); // serial tx, serial rx, reset pin;
+Serial bluetooth(p13,p14);
+Serial pc(USBTX, USBRX);
+
+Mutex stdio_mutex;
+Mutex lcd_mutex;
+
+Thread bluetooth_thread;
+Thread time_thread;
+
+void writeLCD(Arguments *in, Reply *out);
+void setTime (Arguments *in, Reply *out);
+
+//rpc function prototypes
+RPCFunction rpcWriteLCD(&writeLCD, "writeLCD");
+RPCFunction rpcSetTime(&setTime, "setTime");
+
+
+void time_thread_func() {
  
-DigitalOut led1(LED1);
-DigitalOut led2(LED2);
-Thread thread;
+    while (true) {
+        time_t seconds = time(NULL);
+        
+        stdio_mutex.lock();
+        lcd_mutex.lock();
+        
+        uLCD.locate(0,0);
+        uLCD.printf("%s", ctime(&seconds)); //Time as a basic string
+        
+        stdio_mutex.unlock();
+        lcd_mutex.unlock();
+        
+        //printf("Time as seconds since January 1, 1970 = %d\n", seconds);
  
-void led2_thread() {
-    while (true) {
-        led2 = !led2;
-        Thread::wait(1000);
+        //char buffer[32];
+        //strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds));
+        //printf("Time as a custom formatted string = %s", buffer);
+        
+        Thread::wait(1000); //only update every second
+    }
+    
+}
+
+
+void bluetooth_thread_func() {
+    
+    //The mbed RPC classes are now wrapped to create an RPC enabled version - see RpcClasses.h so don't add to base class
+    // receive commands, and send back the responses
+    char buf[256], outbuf[256];
+    uint16_t buf_pos = 0;
+    
+    while(true) {
+        //Thread::wait(20);
+        
+        if (pc.readable() == true) {
+        //if (bluetooth.readable() == true) {
+            
+            stdio_mutex.lock();
+            
+            buf[buf_pos] = pc.getc();
+            //buf[buf_pos] = bluetooth.getc();
+            
+            stdio_mutex.unlock();
+            
+            if (buf[buf_pos] == '\n') { //the end of the RPC command has been received
+                buf[buf_pos] = '\0';
+                buf_pos = 0;
+                RPC::call(buf, outbuf);  //make an RPC call  
+                
+                stdio_mutex.lock();
+                pc.printf("%s\n", outbuf); //send the response
+                stdio_mutex.unlock();
+            }
+            else {
+                buf_pos++;
+            }
+            
+        } else { 
+            Thread::yield();
+        }
+        
     }
 }
- 
+
 int main() {
-    thread.start(led2_thread);
+    
+    bluetooth_thread.start(bluetooth_thread_func);
+    time_thread.start(time_thread_func);
+
+}
+
+
+// Make sure the method takes in Arguments and Reply objects.
+void setTime (Arguments *in, Reply *out)   {
+    static const char * unix_time_str;
+    uint32_t unix_time;
+    
+    //set_time(1256729737);  // Set RTC time to Wed, 28 Oct 2009 11:35:37
+    unix_time_str = in->getArg<const char*>(); //get a pointer to the location where the argument string is stored
+    unix_time = atoll(unix_time_str);
+    
+    set_time(unix_time);  // Set RTC time to Wed, 28 Oct 2009 11:35:37
     
-    while (true) {
-        led1 = !led1;
-        Thread::wait(500);
-    }
 }
+
+
+// Make sure the method takes in Arguments and Reply objects.
+void writeLCD (Arguments *in, Reply *out)   {
+    static const char * msg_str;
+    
+    msg_str = in->getArg<const char*>(); //get a pointer to the location where the argument string is stored
+    
+    stdio_mutex.lock();
+    lcd_mutex.lock();
+    
+    uLCD.locate(0,2);
+    uLCD.printf("%s\r\n",msg_str);
+    
+    stdio_mutex.unlock();
+    lcd_mutex.unlock();
+    
+}