Auduino Compiling error : stdio.h

pnj42

I am trying to run some example code for an NXP sensor on spresense, it will compile for a Arduino board with out erros, but when I try for Sprensence I get the following error:

*\AppData\Local\Arduino15\packages\SPRESENSE\tools\spresense-sdk\1.0.0/spresense/release/nuttx/include/stdio.h:93:22: error: expected unqualified-id before 'void'

#define rewind(s) ((void)fseek((s),0,SEEK_SET))

Any comments please of this if is an error in my code or and issue with the stdio.h file?

TE-KarlKomierowski

Hi @pnj

It would help a lot if you could provide the code/sketch you are trying to build.
Also, what sensor are you using? What libraries?

BR
Karl

I tried the following code just to see if using the rewind macro would generate any error and it didn't:
Using SDK 2.0.2

void setup() {
  // put your setup code here, to run once:
/* This code is just to test the build for errors. */
  FILE *fp = NULL;
  rewind(fp);
  
}

void loop() {
  // put your main code here, to run repeatedly:

}

####################################
## Used memory size:  768 [KByte] ##
####################################
Sketch uses 159444 bytes (20%) of program storage space. Maximum is 786432 bytes.
Global variables use 159444 bytes (20%) of dynamic memory, leaving 626988 bytes for local variables. Maximum is 786432 bytes.

@pnj said in Auduino Compiling error : stdio.h:

some example

pnj42

@TE-KarlKomierowski Thank your reply. The senor is https://learn.adafruit.com/nxp-precision-9dof-breakout/overview, and I can run the basic application supplied for this board. However I am now trying to run the AHS code, and have start with the function "Adafruit_Sensor_Calibration.h". which is where I get this error.

pnj42

I am trying to get a compass heading, or at least the heading in degrees.

KamilTomaszewski

@pnj Please comment line 25:

// #include <stdio.h>

in file: *\AppData\Local\Arduino15\packages\SPRESENSE\hardware\spresense<version>\cores\spresense\Print.h
and add:

#include <stdio.h>

to file: *\AppData\Local\Arduino15\packages\SPRESENSE\hardware\spresense<version>\cores\spresense\main.cpp

Let me know if it helped.

pnj42

Sorry, has taken me time to get back to this problem, once I make the suggested change the error I got previously no longer appears when I compile the code. I now get other issues but that appears to be due to board differences.

Thank you