Diff: DeviceI2C.c

Revision:

186:c7a9c309086c

Parent:

167:bedc0a9d559a

--- a/DeviceI2C.c	Sun Jul 10 05:35:08 2016 +0000
+++ b/DeviceI2C.c	Sun Jul 31 06:19:02 2016 +0000
@@ -11,7 +11,7 @@
 #define I2CONCLR_SIC   0x0000008
 #define I2CONCLR_STAC  0x0000020
 #define I2CONCLR_I2ENC 0x0000040
-//I2C SCL Duty Cycle High Reg
+//I2C SCL Duty Cycle Register
 #define I2SCLH_SCLH    0x00000080 //High
 #define I2SCLL_SCLL    0x00000080 //Low
 //Address
@@ -24,7 +24,7 @@
 extern Device device;
 
 //
-//Warning!!!
+//Attention!!!
 //  Different LPC17xx.h versions declare different I2C registers names:
 //    LPC_I2C0->CONCLR (Keil?)/ LPC_I2C0->I2CONCLR (mbed)
 //    ...
@@ -37,21 +37,19 @@
 void InitI2CState(void) {
   device.controller.I2C.state.buffer[0] = I2C_A_ADDRESS;
   device.controller.I2C.state.buffer[1] = I2C_WRITE_CMD;
-  device.controller.I2C.state.buffer[2] = device.isacs.potentiometers.settings.a;
+  device.controller.I2C.state.buffer[2] = 255 - device.isacs.potentiometers.settings.a;
   device.controller.I2C.state.buffer[3] = I2C_B_ADDRESS;
   device.controller.I2C.state.buffer[4] = I2C_WRITE_CMD;
-  device.controller.I2C.state.buffer[5] = device.isacs.potentiometers.settings.b;
+  device.controller.I2C.state.buffer[5] = 255 - device.isacs.potentiometers.settings.b;
   device.controller.I2C.state.position = 0;
   device.controller.I2C.state.counter = 0;
   device.controller.I2C.state.trigger = device.controller.I2C.settings.trigger;
+  device.controller.I2C.state.enabled = 0;
 }
 
 void DeviceStartI2C(void) {
-  LPC_SC->PCONP |= (1 << 7);//I2C0 on
-  //LPC_SC->PCONP |= (1 << 19);//I2C1 on
+  LPC_SC->PCONP |= (1 << 7);//I2C0 power on
 
-  // set PIO0.27 and PIO0.28 to I2C0 SDA and SCK
-  // function to 01 on both SDA and SCK
   LPC_PINCON->PINSEL1 &= ~0x03C00000; //P0.27 - SDA
   LPC_PINCON->PINSEL1 |= 0x01400000;  //P0.28 - SCK
   
@@ -67,11 +65,12 @@
   //LPC_I2C0->I2CONSET = I2CONSET_I2EN; //включение интерфейса I2C
   
   device.controller.I2C.state.CON0 = LPC_I2C0->CONSET & (~LPC_I2C0->CONCLR);
-  //device.controller.I2C.state.CON0 = LPC_I2C0->I2CONSET & (~LPC_I2C0->I2CONCLR);
+  
+  i2cEnableTransmission();
 }
 
-void DeviceI2CTransmit(void) {
-  if (!device.controller.I2C.state.enabled) return;                   //Transmission disabled, go away
+void i2cProcess(void) {
+  if (!device.controller.I2C.state.enabled) return;        //Transmission disabled, go away
 
   device.controller.I2C.state.counter++;
   if (device.controller.I2C.state.counter > device.controller.I2C.state.trigger){//Time out, go away
@@ -118,19 +117,17 @@
 
     //ACK after data byte
     case 0x28:
-      if  (device.controller.I2C.state.position == I2C_BUFFER_LENGTH) {                   //Data transmission finished
+      if  (device.controller.I2C.state.position == I2C_BUFFER_LENGTH) { //Data transmission finished
         device.controller.I2C.state.enabled = 0;
         LPC_I2C0->CONSET = I2CONSET_STO;                 //Set Stop flag
         //LPC_I2C0->I2CONSET = I2CONSET_STO;                 //Set Stop flag
-       //Output.Str.Cnt_Dif = 300;
       } else if (device.controller.I2C.state.position == 3) {
        LPC_I2C0->CONSET = I2CONSET_STA;
        //LPC_I2C0->I2CONSET = I2CONSET_STA;
-       //Output.Str.Cnt_Dif = 200;
+       //sprintf(device.service.buffer, "I2C 0x28 mid\r\n"); WriteConcole(); //Development message
       } else {
         LPC_I2C0->DAT = device.controller.I2C.state.buffer[device.controller.I2C.state.position++];//Send another byte   
         //LPC_I2C0->I2DAT = device.controller.I2C.state.buffer[device.controller.I2C.state.position++];//Send another byte   
-        //Output.Str.Cnt_Dif = 100;
       }
       LPC_I2C0->CONCLR = I2CONCLR_SIC;                   //Clear interrupt bit
       //LPC_I2C0->I2CONCLR = I2CONCLR_SIC;                   //Clear interrupt bit
@@ -144,15 +141,15 @@
       //LPC_I2C0->I2CONSET = I2CONSET_STO;                   //Set Stop flag
       LPC_I2C0->CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC);
       //LPC_I2C0->I2CONCLR = (I2CONCLR_SIC | I2CONCLR_STAC);
-      device.controller.I2C.state.enabled = 0;                        //Disable transmission
+      device.controller.I2C.state.enabled = 0;             //Disable transmission
     break;
   }
 }
 
-void StartI2CTransmission(void){
+void i2cEnableTransmission(void){
   device.controller.I2C.state.position = 0;
-  device.controller.I2C.state.counter = I2C_TIMEOUT;
+  device.controller.I2C.state.counter = 0;
   LPC_I2C0->CONSET = I2CONSET_STA; //Set start flag
   //LPC_I2C0->I2CONSET = I2CONSET_STA; //Set start flag
-  device.controller.I2C.state.enabled = 1;      //Enable transmission
+  device.controller.I2C.state.enabled = 1;                 //Enable transmission
 }
\ No newline at end of file