Fix algo issue

Author: awhitchurch

src/Protocentral_spo2_algorithm.cpp

@@ -1,9 +1,6 @@
 #include "protocentral_afe44xx.h"
 #include "Protocentral_spo2_algorithm.h"
 
-static  int32_t an_x[ BUFFER_SIZE];
-static  int32_t an_y[ BUFFER_SIZE];
-
 const uint8_t uch_spo2_table[184]={ 95, 95, 95, 96, 96, 96, 97, 97, 97, 97, 97, 98, 98, 98, 98, 98, 99, 99, 99, 99,
                                     99, 99, 99, 99, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
                                    100, 100, 100, 100, 99, 99, 99, 99, 99, 99, 99, 99, 98, 98, 98, 98, 98, 98, 97, 97,
@@ -17,6 +14,9 @@ const uint8_t uch_spo2_table[184]={ 95, 95, 95, 96, 96, 96, 97, 97, 97, 97, 97,
 
 void spo2_algorithm :: estimate_spo2(uint16_t *pun_ir_buffer, int32_t n_ir_buffer_length, uint16_t *pun_red_buffer, int32_t *pn_spo2, int8_t *pch_spo2_valid, int32_t *pn_heart_rate, int8_t *pch_hr_valid)
 {
+  static int32_t an_x[ BUFFER_SIZE];
+  static int32_t an_y[ BUFFER_SIZE];
+  
   uint32_t un_ir_mean;
   int32_t k, n_i_ratio_count;
   int32_t i, n_exact_ir_valley_locs_count, n_middle_idx;