Marek Trojan / _8_CONV_1_SLAVE

program for conv1

Dependencies:   mbed-src

Files at this revision

API Documentation at this revision

Revision 4:9e2adff677ac, committed 2015-12-16

Comitter:
marcus255
Date:
Wed Dec 16 19:42:44 2015 +0000
Parent:
3:45f63cbde7b3
Commit message:
Reading/Writting EEPROM works fine, Reading/Writting works fine when temperature sensor connected to the i2c bus. Device addresses must be hardcoded for now.

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
main.h Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Tue Dec 15 22:44:11 2015 +0000
+++ b/main.cpp	Wed Dec 16 19:42:44 2015 +0000
@@ -9,12 +9,12 @@
 void i2cStart(void){
     SDA_interrupt.disable_irq();
     char addr = (char)slave.read();
-    if (addr == SLAVE_ADDR) {
+    if (addr == RTC_ADDR) {
         count = 0;
         char uart_rec;
         device.putc(DATA_TO_WRITE_CHAR);
         device.putc(addr);
-        while(!SDA_state) {
+        while(!SDA_state) { //writting to slave
             buffer = (char)slave.read();
             for(int y = 0; y < 1024; y++){} //some delay required for signal establishment
             if(SDA_state) break;
@@ -34,7 +34,7 @@
         //slave.stop();
         device.putc(END_OF_TRANSMISSION);
     } 
-    else if (addr & 0x01 == 0x01){
+    else if (addr & 0x01 == 0x01){ //reading from slave
         char uart_rec2;
         device.putc(DATA_TO_WRITE_CHAR);
         device.putc(addr);
@@ -66,5 +66,5 @@
     SDA_interrupt.fall(&i2cStart);
     slave.frequency(100000);
     device.baud(921600);
-    slave.address(SLAVE_ADDR);
+    slave.address(RTC_ADDR);
 }
\ No newline at end of file

--- a/main.h	Tue Dec 15 22:44:11 2015 +0000
+++ b/main.h	Wed Dec 16 19:42:44 2015 +0000
@@ -3,6 +3,7 @@
 
 #include <mbed.h>
 #define SLAVE_ADDR 0xA0
+#define RTC_ADDR 0xD0
 #define RECBUFSIZE 64
 #define UART_CONFIRMATION_CHAR 0x33
 #define DATA_TO_WRITE_CHAR 0xCC