Michael Baker
Program to scan I2C bus for device addresses
Revision 0:545d57fc4eca, committed 2017-01-26
- Comitter:
- michaelVisimid
- Date:
- Thu Jan 26 19:28:55 2017 +0000
- Commit message:
- Initial commit
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Jan 26 19:28:55 2017 +0000
@@ -0,0 +1,30 @@
+// Original program found here: http://playground.arduino.cc/Main/I2cScanner
+// Modified by Domen Ornik, 4.5.2015
+
+#include "mbed.h"
+
+I2C i2c(I2C_SDA , I2C_SCL );
+
+int returnCode, address, numberOfDevices = 0;
+char outByte = 0xAA;
+
+int main() {
+ printf("\r\nI2C Bus Scanner\r\n");
+ numberOfDevices = 0;
+ for(address = 1; address < 127; address++ ){
+ returnCode = i2c.write((address << 1),&outByte,1,0);
+ if (returnCode == 0)
+ {
+ printf("I2C device found at address 0x%X\r\n", address);
+ numberOfDevices++;
+ }
+
+ }
+ if (numberOfDevices == 0){
+ printf("No I2C devices found\r\n");
+ }
+ else{
+ printf("Number of devices: %d\r\n",numberOfDevices);
+ }
+
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Jan 26 19:28:55 2017 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/ad3be0349dc5 \ No newline at end of file