Hi Everybody

I am working with the DSP library but I cannot figure out how to get working the arm_conv functions. If somebody could post a small example it will be of big help.

Thank you so much

Hi

Any pointers to some documentation? Google turns op virtually nothing and searching the arm compiler docs doesn't either.

Wim

finally....

1...delete the mbed lybrary..and add this "http://mbed.org/projects/libraries-testing/svn/beta?rev=31".

2...add 'DSP' library.

my example:

1. include "mbed.h"
2. include "arm_math.h"

LocalFileSystem local("local"); Serial pc(USBTX, USBRX); DigitalOut pinout(p7);

int main() {

float32_t In[1024]; float32_t Out[1031]; float32_t Ca[8]={ -0.0758, -0.0296, 0.4976, 0.8037, 0.2979, -0.0992, -0.0126, 0.0322}; float32_t Cd[8]={ -0.0322, -0.0126, 0.0992, 0.2979, -0.8037, 0.4976, 0.0296, -0.0758}; uint32_t I=1024; uint32_t f=8;

FILE *file_0 = fopen("/local/y.txt", "r"); if (file_0 == NULL) { error("Could not open file"); }

for (int i=0;i<=1023;i++){ fscanf(file_0,"%f",(In+i)); }

fclose(file_0);

arm_conv_f32(In,I,Cd,f,Out); convolution save in Out

FILE *file_1 = fopen("/local/file_1.txt", "w"); for (int i=0;i<1031;i++){ fprintf(file_1,"%f ",Out[i]); }

fclose(file_1);

}