Hi,
i am presently working on 816x/393x ti digital spectral board . Recently i downloaded a zip file to run the test code on the board . In the zip file i got four folder GEL,INCLUDE,LIB AND TEST. I tried to write my code to blink the led using I2C0 .
MY CODE IS
#include "evm816x.h"
#include "evm816x_i2c.h"
main()
{
char val[2];
val[0]=0xaa;
val[1]=0xff;
EVM816X_init();
EVM816X_write_i2c0(0x20,val,2);
}
I am using ubuntu 11.10 and i am using Makefile to compile my code and execute them on the target.
the content of my makefile is
include /usr/local/ezsdk/Rules.make
sec:
$(CSTOOL_PREFIX)gcc -o seven secondapp.c
/usr/local/ezsdk is the location where i installed my ezsdk.
when i am trying to compile the program i got an error
/root/CodeSourcery/Sourcery_G++_Lite//bin/arm-none-linux-gnueabi-gcc -o seven secondapp.c
/tmp/ccMFHN89.o: In function `main':
secondapp.c:(.text+0x1c): undefined reference to `EVM816X_init'
collect2: ld returned 1 exit status
make: *** [sec] Error 1
In order to overcome this error what i have done is i have included the .c file in my test code file . now my file look like
#include "evm816x.h"
#include "evm816x_i2c.h"
#include "evm816x.c"
#include "evm816x_i2c.c"
main()
{
char val[2];
val[0]=0xaa;
val[1]=0xff;
EVM816X_init();
EVM816X_write_i2c0(0x20,val,2);
}
after doing this i am able to generate the executable file.
I have changed the base address but still i am getting segmentation fault.
IN ORDER to see where my program is geting segmentation fault i found that when i try to write any I2C register i got the segmentation fault.
Also I HAVE Done nothing with the gel file. Please tell me the purpose of having gel file and its application . And also tell me the correct way to include the library so that i don't have to include .c file in the main application.
please help me out
