Diff: src/commI2C.cpp

Revision:

18:d95e1a2c4303

Parent:

17:74d60177c6b6

Child:

26:f51ff4ad7a93

--- a/src/commI2C.cpp	Fri Jan 25 01:46:26 2019 +0000
+++ b/src/commI2C.cpp	Sun Jan 27 15:27:53 2019 +0000
@@ -9,8 +9,7 @@
 
 extern Serial pc;
 extern bool verbose;  
-//#define TEST
-   
+//#define TEST   
 //==============================================================================
 // i2c_proc_init
 // - init i2c comm to proc
@@ -62,8 +61,8 @@
     wake.mode(OpenDrain);
     wake.output();
     wake = 1;                            
-    wait_ms(10);  //proc uses interrupts on lora_wake, so don't need to wait,just pulse it
-    wake = 0;       // set wake lo  
+    wait_ms(10);    //proc uses interrupts on lora_wake, so don't need to wait,just pulse it
+    wake = 0;       //set wake lo  
     wait_ms(1);  
     wake.input();   //go back to input mode   !!! wake pull hi if go back to input mode ??? 
     return;
@@ -93,20 +92,23 @@
 // -  0x000fffff gives a 1.1 second timeout
 // - after proc wakes xdot from sleep then proc must send an i2c omd within timout
 // - once xdot pulses wake to notify proc that i2c ack msg is ready, proc must do i2c read within timeout
+// Jan2019: modified to handle large mcast code frags
+// - Input parameters:
+//   buf_xmt: pointer to buffer containing I2C data for transfer to psco
+//   buf_rcv: pointer to buffer continaing I2C data for transfer from psoc
 //==============================================================================
-I2C_XFR_TYPE i2c_proc_comm(void)
+I2C_XFR_TYPE i2c_proc_comm(uint8_t *buf_xmt,uint8_t *buf_rcv,uint16_t bufSize)
 {
-       
     uint32_t timeout = 0x000fffff;  //1.1second timeout
   
     while(1){
         int i = slave.receive();  
         switch (i) {
             case I2CSlave::ReadAddressed:        //xdot  -> proc                     
-                slave.write((char *)buf_xmt, BUFFER_SIZE_I2C);                 
+                slave.write((char *)buf_xmt,bufSize);                 
                 return I2C_WRITE;            
             case I2CSlave::WriteAddressed:   //xdot <- proc                                                  
-                slave.read((char *)buf_rcv, BUFFER_SIZE_I2C);                 
+                slave.read((char *)buf_rcv,bufSize);                 
 /*                
                 if (verbose){
                     pc.printf("\n\r Incoming buffer(hex): \n\r");