Hello everyone,
I am working on a bluetooth camera project using the nRF5340 DK and SDK v.2.2.0. Since the Image data is quite large, I want to store it in a Text file for further processing using matlab or python.
I tried the following code:
FILE *fp = fopen("image01.txt", "w");
fwrite(framebuffer, sizeof(uint8_t), 320*320, fp);
fclose(fp);
However, it says that it does not know the fopen and fclose function, and if I have included the stdio.h:
c:\ncs\hello_world_3\src\main.c:22:20: warning: implicit declaration of function 'fopen' [-Wimplicit-function-declaration]
22 | FILE *fp = fopen("image01.txt", "w");
| ^~~~~
c:\ncs\hello_world_3\src\main.c:11:1: note: 'fopen' is defined in header '<stdio.h>'; did you forget to '#include <stdio.h>'?
10 | #include <zephyr/kernel.h>
+++ |+#include <stdio.h>
although I have already included it. I have found out that the standerd zephyr stdio.h library does not include the fopen functoion, but the sdk contains a stdio.h that does. Is there a way to include them both, although they have the same name? Or is there any other, more efficient way to store an array directly to a text file?
Thanks in advance!
Paul
