Diff: LPC11UXX/main.cpp

Revision:

10:b2ffc7117a58

Parent:

7:82b1422b9b09

Child:

17:8e4c490fd639

--- a/LPC11UXX/main.cpp	Thu Dec 04 17:39:09 2014 +0900
+++ b/LPC11UXX/main.cpp	Thu Dec 04 17:39:24 2014 +0900
@@ -1,14 +1,157 @@
+/** uart_i2c_conv for LPC11UXX
+*/
+
 #include "mbed.h"
+#include "I2C_FmPlus.h"
+
+#if defined(TARGET_LPC11U35_401) || defined(TARGET_LPC11U35_501) 
 #include "USBSerial.h"
- 
-//Virtual serial port over USB
-USBSerial serial;
- 
-int main(void) {
+USBSerial pc;
+#else
+Serial pc(USBTX, USBRX);
+#endif
+I2C_FmPlus dev1( P0_5, P0_4 );
+I2C_FmPlus* dev = &dev1;
+
+int main()
+{
+    I2C* dev=&dev1;
+    pc.baud(115200);
+
+    bool s = false;
+    dev1.frequency(1000000);//1M
+
+    int ack=0;
+    int plength=0;
+    char recieve[256];
+    char send[256];
+    char read=0;
+    int address=0,length=0,channel=0;
+    enum reg {
+        I2C0adr='0',
+    };
+
+//"C0P"
+//"C1P"
+//"C2P"
+//"C3P"
+//"S| 0x_8 _0| 0x_0 _4| 0x_D _E _A _D _B _E _A _F| P"
+//"S| 0x_8 _0| 0x_0 _4| 0x_D _E _A _D _B _E _A _F| S| 0x_8 _1| 0x_0 _4| P"
+//"S| 0x_8 _1| 0x_0 _4| P"
 
-    while(1)
-    {
-        serial.printf("I am a virtual serial port\r\n");
-        wait(1);
+    int i=0;
+    while(1) {
+        while(true) {
+            read=pc.getc();
+            recieve[i]=read;
+            i++;
+            if(read == 'P') {
+                plength=i;
+                break;
+            }
+        }
+        i=0;
+        while(i < plength) {
+            switch(recieve[i]) {
+                case 'C':
+                {
+                    channel=recieve[i+1];
+                    switch(channel) {
+                        case I2C0adr:
+                        {
+                            bus=~0x01;
+                            channel='0';
+                            dev=&dev1;
+                            break;
+                        }
+                        default:
+                        {
+                            channel='0';
+                            dev=&dev1;
+                            break;
+                        }
+                    }
+                    i+=(2);
+                    break;
+                }
+                case 'S':
+                {
+                    s = true;
+                    ack = plength - 2 - (i+1) + (recieve[i+2] & 0x01);
+                    if( ack >= 4){ //valid packet
+                        address = 0xff & (recieve[i+1] << 4 | (recieve[i+2] & 0x0F));
+                        length = 0xff & (recieve[i+3] << 4 | (recieve[i+4] & 0x0F));
+                    }else{
+                        pc.printf("bad packet! %d, %d, %02X, %d\n\r",plength,i,recieve[(i+2)]&0x0F,ack);
+                        i = plength + 1;
+                        break;
+                    }
+                    dev->start();
+                    ack=dev->write(address);
+                    if( (address&0x01)) {//read
+                        for(int j=0; j<length; j++) {
+                            send[j] = dev->read(1);
+                        }
+                        i+=(5);
+                    } else {//write
+                        for(int j=0; j < (length * 2); j+=2) {
+                            ack = dev->write( 0xff&(recieve[5+j] << 4 | (recieve[6+j] & 0x0F)) );
+                        }
+                        i+=(5 + length * 2);
+                        length=0;
+                    }
+                    break;
+                }
+                case 'P':
+                    if(s){
+                        dev->stop();
+                        s=false;
+                    }
+                    i=plength;
+                    for(int j=0; j<length; j++) {
+                        pc.printf("%02X,",send[j]);
+                    }
+                    pc.printf("ok\n\r");
+                    break;
+                case 'R':
+                {
+                    pc.printf("command R is not implemented\n\r");
+                    i=plength;
+                    break;
+                }
+                case 'W':
+                {
+                    pc.printf("command W is not implemented\n\r");
+                    i=plength;
+                    break;
+                }
+                case 'I':
+                {
+                    pc.printf("command I is not implemented\n\r");
+                    i=plength;
+                    break;
+                }
+                case 'O':
+                {
+                    pc.printf("command O is not implemented\n\r");
+                    i=plength;
+                    break;
+                }
+                case 'Z':
+                {
+                    pc.printf("command Z is not implemented\n\r");
+                    i=plength;
+                    break;
+                }
+                default:
+                {
+                    pc.printf("command ? is not implemented\n\r");
+                    i=plength;
+                    break;
+                }
+            }
+        }
+        i=0;
+        length=0;
     }
-}
\ No newline at end of file
+}