Rune Langoy
/
i2c_detect
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PRES11_I2C_Detect
by 
EL-POM1001
Revision 0:9e51d4453b53, committed 2015-11-09
- Comitter:
- rlanghbv
- Date:
- Mon Nov 09 13:21:03 2015 +0000
- Child:
- 1:624dc0072a11
- Commit message:
- First comit
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 Mon Nov 09 13:21:03 2015 +0000
@@ -0,0 +1,29 @@
+#include "mbed.h"
+
+//SDA , SCL
+I2C i2cBus(PB_9, PB_8);
+
+int main()
+{
+ i2cBus.frequency(100000);
+
+ printf("\r\n Scanning for I2C devices (addresses in hex)\r\n ");
+ printf(" 0 1 2 3 4 5 6 7 8 9 a b c d e f\r\n");
+ for (int i = 0; i < 128; i += 16) {
+ printf("%02x: ", i);
+ for(int j = 0; j < 16; j++) {
+ // Skip unwanted addresses
+ if (i+j < 0x3 || i+j > 0x77) {
+ printf(" ");
+ continue;
+ }
+
+ if (!i2cBus.write(i+j<<1, NULL, 0))
+ printf("%02x ", i+j);
+ else
+ printf("-- ");
+
+ }
+ printf("\r\n");
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Nov 09 13:21:03 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 \ No newline at end of file