napoleon leoni / Mbed 2 deprecated rtosIPCtesting

first compiled version

Dependencies:   mbed-rtos mbed C12832_lcd LM75B

main.cpp@3:0945093f48ec, 2014-03-04 (annotated)

Committer:
nleoni
Date:
Tue Mar 04 08:48:41 2014 +0000
Revision:
3:0945093f48ec
Parent:
1:83bc9f91d154
Child:
4:6c17983d6192
LCD working with fortune cookie and pot display

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nleoni 3:0945093f48ec 1 //Rob I updated the LCD update and read pot thread and they are working
nleoni 3:0945093f48ec 2 //One key issues was adding timeout for the put and get methods of the queue
nleoni 3:0945093f48ec 3 //Maybe you can work on the TOD thread and MUTEX (you'll need to add it to the
nleoni 3:0945093f48ec 4 //LCD thread and I will finish the scan thread, sounds like Plan?? :-)
nleoni 3:0945093f48ec 5 //In the end I had to add the memory pool combined with the queue as otherwise
nleoni 3:0945093f48ec 6 //the queues just keep pointers to data and being that the putting and getting of
nleoni 3:0945093f48ec 7 //the pot values in the queue is asynchronous you need a buffer to keep the values
nleoni 3:0945093f48ec 8 //and this is provided by the MemoryPool.
nleoni 3:0945093f48ec 9
robertwharrell 1:83bc9f91d154 10
nleoni 0:7ae4f23f84a3 11 #include "mbed.h"
nleoni 0:7ae4f23f84a3 12 #include "rtos.h"
nleoni 3:0945093f48ec 13 #include "C12832_lcd.h"
nleoni 3:0945093f48ec 14 #include <string>
nleoni 3:0945093f48ec 15
nleoni 3:0945093f48ec 16 #define BUFFER 17
nleoni 3:0945093f48ec 17 #define COOKIEQUEUE 30
nleoni 3:0945093f48ec 18
nleoni 3:0945093f48ec 19 C12832_LCD lcd;
nleoni 3:0945093f48ec 20 Serial pc(USBTX, USBRX); // tx, rx
nleoni 0:7ae4f23f84a3 21
nleoni 0:7ae4f23f84a3 22 AnalogIn pot1(p19);
nleoni 3:0945093f48ec 23 MemoryPool<float, 10> potReadingBuffer;
nleoni 0:7ae4f23f84a3 24 Queue<float,10> potReadingQueue;
nleoni 0:7ae4f23f84a3 25
nleoni 3:0945093f48ec 26 MemoryPool<char[BUFFER], COOKIEQUEUE> cookieReadingBuffer;
nleoni 3:0945093f48ec 27 Queue<char[BUFFER],COOKIEQUEUE> cookieReadingQueue;
nleoni 3:0945093f48ec 28
nleoni 0:7ae4f23f84a3 29 void lcdUpdate(void const*){
nleoni 0:7ae4f23f84a3 30 while(1){
nleoni 3:0945093f48ec 31 osEvent evtPot = potReadingQueue.get(1200);
nleoni 3:0945093f48ec 32 if (evtPot.status == osEventMessage) {
nleoni 3:0945093f48ec 33 float *queuePot = (float*)evtPot.value.p;
nleoni 3:0945093f48ec 34 lcd.locate(0,3);
nleoni 3:0945093f48ec 35 lcd.printf("Voltage: %.2f V", *queuePot);
nleoni 3:0945093f48ec 36 potReadingBuffer.free(queuePot);
nleoni 0:7ae4f23f84a3 37 }
nleoni 3:0945093f48ec 38 osEvent evtCookie = cookieReadingQueue.get(1200);
nleoni 3:0945093f48ec 39 if (evtCookie.status == osEventMessage) {
nleoni 3:0945093f48ec 40 char (*queueCookie)[BUFFER] = (char (*)[BUFFER])evtCookie.value.p;
nleoni 3:0945093f48ec 41 lcd.locate(0,15);
nleoni 3:0945093f48ec 42 string str(*queueCookie);
nleoni 3:0945093f48ec 43 lcd.printf("F.Cookie: %s", str);
nleoni 3:0945093f48ec 44 cookieReadingBuffer.free(queueCookie);
nleoni 3:0945093f48ec 45 }
nleoni 3:0945093f48ec 46 Thread::wait(1000);
nleoni 0:7ae4f23f84a3 47 }
nleoni 0:7ae4f23f84a3 48 }
nleoni 0:7ae4f23f84a3 49
nleoni 0:7ae4f23f84a3 50 void readPOT(void const*){
nleoni 0:7ae4f23f84a3 51 while(1){
nleoni 3:0945093f48ec 52 float *queue = potReadingBuffer.alloc();
nleoni 0:7ae4f23f84a3 53 *queue = pot1;
nleoni 3:0945093f48ec 54 potReadingQueue.put(queue,1200);
nleoni 0:7ae4f23f84a3 55
nleoni 0:7ae4f23f84a3 56 Thread::wait(10000);
nleoni 0:7ae4f23f84a3 57 }
nleoni 0:7ae4f23f84a3 58
nleoni 0:7ae4f23f84a3 59 }
nleoni 0:7ae4f23f84a3 60
nleoni 3:0945093f48ec 61
nleoni 3:0945093f48ec 62
nleoni 0:7ae4f23f84a3 63 void readTemp(void const*){
nleoni 0:7ae4f23f84a3 64
nleoni 0:7ae4f23f84a3 65 }
nleoni 0:7ae4f23f84a3 66
nleoni 3:0945093f48ec 67 void readCookie(void const*){
nleoni 3:0945093f48ec 68 pc.printf(">Enter your fortune cookie\n>");
nleoni 3:0945093f48ec 69 char (*ptrBuffer)[BUFFER] = cookieReadingBuffer.alloc();
nleoni 3:0945093f48ec 70 char *ptrChar;
nleoni 3:0945093f48ec 71 ptrChar=*ptrBuffer;
nleoni 3:0945093f48ec 72 while(1){
nleoni 3:0945093f48ec 73 if(pc.readable()){
nleoni 3:0945093f48ec 74 *ptrChar=pc.getc();
nleoni 3:0945093f48ec 75 pc.putc(*ptrChar);
nleoni 3:0945093f48ec 76 if((*ptrChar=='\n') || ((ptrChar-*ptrBuffer)>=(BUFFER-1)) ){
nleoni 3:0945093f48ec 77 if((ptrChar-*ptrBuffer)>=(BUFFER-1)) *++ptrChar='\n';
nleoni 3:0945093f48ec 78 while((ptrChar-*ptrBuffer)<=(BUFFER-1)){
nleoni 3:0945093f48ec 79 *ptrChar++=' ';
nleoni 3:0945093f48ec 80 }
nleoni 3:0945093f48ec 81 *ptrChar='\0';
nleoni 3:0945093f48ec 82 cookieReadingQueue.put(ptrBuffer,500);
nleoni 3:0945093f48ec 83 pc.printf(">Enter your fortune cookie\n>");
nleoni 3:0945093f48ec 84 ptrChar=*ptrBuffer;
nleoni 3:0945093f48ec 85 } else {
nleoni 3:0945093f48ec 86 ptrChar++;
nleoni 3:0945093f48ec 87 }
nleoni 3:0945093f48ec 88 }
nleoni 3:0945093f48ec 89 Thread::wait(10);
nleoni 3:0945093f48ec 90 }
nleoni 0:7ae4f23f84a3 91 }
nleoni 0:7ae4f23f84a3 92
nleoni 0:7ae4f23f84a3 93 DigitalOut myled(LED1);
nleoni 0:7ae4f23f84a3 94
nleoni 0:7ae4f23f84a3 95 int main() {
nleoni 3:0945093f48ec 96 lcd.cls();
nleoni 3:0945093f48ec 97
nleoni 0:7ae4f23f84a3 98 Thread threadLCD(lcdUpdate);
nleoni 0:7ae4f23f84a3 99 Thread threadPOT(readPOT);
nleoni 0:7ae4f23f84a3 100 Thread threadTemp(readTemp);
nleoni 3:0945093f48ec 101 Thread threadCookie(readCookie);
nleoni 0:7ae4f23f84a3 102
nleoni 0:7ae4f23f84a3 103 while(1) {
nleoni 3:0945093f48ec 104 Thread::wait(250);
nleoni 3:0945093f48ec 105
nleoni 0:7ae4f23f84a3 106 }
nleoni 0:7ae4f23f84a3 107 }