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fix interfaccia

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This commit is contained in:
nzasch
2022-01-12 01:09:32 +01:00
parent b9a7a1e15b
commit 6d0c31556a
435 changed files with 436215 additions and 10940 deletions
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24
tools/fir_generate.c Normal file
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@@ -0,0 +1,24 @@
#include <stdint.h>
#include <stdio.h>
uint16_t size, i;
// occhio che usi SMLAL
// https://community.arm.com/developer/tools-software/tools/f/keil-forum/28937/can-t-efficiently-use-smlal-instruction-in-cortex-m4
int main(void){
size = 7;
i = 0;
printf("inline q31_t hb_fir%d(q31_t * samples_ringbuf, uint8_t sample_index, uint8_t buff_size_mask, q31_t * coefficients){\n",size);
printf("\tq63_t sum0 = 0;\n");
while(i <= (size/2)){
if((!(i%2)) || (i==(size/2))) {
printf("\tsum0 += (q63_t) samples_ringbuf[(sample_index - %d) & buff_size_mask] * coefficients[%d];\n", i, i);
if(i != (size/2)) printf("\tsum0 += (q63_t) samples_ringbuf[(sample_index - %d) & buff_size_mask] * coefficients[%d];\n", (size - (i+1)), i);
// printf("\tsum0 += (q63_t) samples_ringbuf[(sample_index - %d)] * coefficients[%d];\n", i, i);
// if(i != (size/2)) printf("\tsum0 += (q63_t) samples_ringbuf[(sample_index - %d)] * coefficients[%d];\n", (size - (i+1)), i);
}
i++;
}
printf("\treturn (q31_t) (sum0 >> 31);\n");
printf("}\n");
}