Important changes to forums and questions
All forums and questions are now archived. To start a new conversation or read the latest updates go to forums.mbed.com.
6 years, 11 months ago. This question has been closed. Reason: Too broad - no single answer
Cannot compile with up-to-date Microbit-dal
EDIT: I closed this question as I started again from a blank canvas and that's working.
Starting with the Blinky sample, which compiles OK, I then switched from mbed.h to MicroBit.h, which initially throws an error about pin definitions p4 and p13
Error: Identifier "p13" is undefined in "microbit/microbit-dal/inc/drivers/MicroBitMatrixMaps.h", Line: 155, Col: 6 Error: Identifier "p4" is undefined in "microbit/microbit-dal/inc/drivers/MicroBitMatrixMaps.h", Line: 156, Col: 6
. ..until I do two things:
Update the library/s
Add my own header file which contains the lower case pin definitions from https://github.com/lancaster-university/microbit-dal/blob/master/inc/drivers/MicroBitPin.h
This gets me to the following compile errors:
Error: Too few arguments in function call in "microbit/microbit-dal/source/drivers/MicroBitI2C.cpp", Line: 85, Col: 36 Error: Too few arguments in function call in "microbit/microbit-dal/source/drivers/MicroBitI2C.cpp", Line: 124, Col: 36
These refer to twi_master_init_and_clear()
At that point I am stopping because I am new to C/C++ on the microbit and also the mbed environment and I don't want to go down an unnecessary rabbit hole, but felt it worth documenting my experience for others who follow in my wake. I'd appreciate any guidance/RTFM material etc.
My main code:
//#include "mbed.h"
#include "nkpins.h"
#include "MicroBit.h"
/*
* All the LEDs on the micro:bit are part of the LED Matrix,
* In order to get simple blinking behaviour, we set column 0
* to be permanently at ground. If you want to use the LEDs as
* a screen, there is a display driver in the micro:bit 'DAL',
*/
//DigitalOut col0(P0_4, 0);
DigitalOut myled(p1); //MICROBIT_PIN_P1
int main()
{
while(1) {
myled = 1;
wait(0.2);
myled = 0;
wait(0.2);
}
}
With nkpins just being:
#define p0 P0_3 //P0 is the left most pad (ANALOG/DIGITAL) used to be P0_3 on green board #define p1 P0_2 //P1 is the middle pad (ANALOG/DIGITAL) #define p2 P0_1 //P2 is the right most pad (ANALOG/DIGITAL) used to be P0_1 on green board #define p3 P0_4 //COL1 (ANALOG/DIGITAL) #define p4 P0_5 //COL2 (ANALOG/DIGITAL) #define p5 P0_17 //BTN_A #define p6 P0_12 //COL9 #define p7 P0_11 //COL8 #define p8 P0_18 //PIN 18 #define p9 P0_10 //COL7 #define p10 P0_6 //COL3 (ANALOG/DIGITAL) #define p11 P0_26 //BTN_B #define p12 P0_20 //PIN 20 #define p13 P0_23 //SCK #define p14 P0_22 //MISO #define p15 P0_21 //MOSI #define p16 P0_16 //PIN 16 #define p19 P0_0 //SCL #define p20 P0_30 //SDA
Question relating to:
