You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
extr/buffer.c

43 lines
1004 B
C

#include <util/atomic.h>
#include "buffer.h"
void insert_to_buffer(uint16_t val, volatile buffer_t* buf){
ATOMIC_BLOCK(ATOMIC_FORCEON){
buf->position++;
if(buf->position == BUFFER_SIZE)
buf->position = 0;
buf->values[buf->position] = val;
}
}
float get_buffer_mean(volatile buffer_t* buf){
///* discard lowest and highest value */
//uint16_t low=0xFFFF;
//uint16_t high=0;
//uint16_t index_l = 0;
//uint16_t index_h = 0;
//for(uint16_t i=0; i<BUFFER_SIZE; i++){
// if(buf->values[i] < low){
// low=buf->values[i];
// index_l = i;
// }
// if(buf->values[i] > high){
// high=buf->values[i];
// index_h = i;
// }
//}
uint32_t sum = 0;
for(uint16_t i=0; i<BUFFER_SIZE; i++){
//if(i == index_h || i == index_l)
// continue;
sum += buf->values[i];
}
uint16_t res = sum/(BUFFER_SIZE/*-2*/);
return res;
}