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10 years, 2 months ago.
Can't initialise i2c
I'm testing a few examples and developing my own code for i2c
include the mbed library with this snippet
#include "mbed.h" I2CSlave slave(p9,p10); Serial pc(USBTX, USBRX);
But I always get the same error:
Error: Identifier "p9" is undefined in "main.cpp", Line: 3, Col: 18 Error: Identifier "p10" is undefined in "main.cpp", Line: 3, Col: 21
What's wrong? (Ublox c-027)
1 Answer
10 years, 2 months ago.
p9 is a LPC1768 pin number (pin 9 on the 40 pin board outline), since the ublox board is a different physical shape p9 and p10 aren't defined for it.
This diagram http://mbed.org/platforms/u-blox-C027/ shows that the ublox I2C is on P0_1 and P0_0, try those two and it should work.
Accepted Answer