FFT is correctly calculated for dummy (DC = 1.0) data!

src/l502_user_process.c

@@ -155,6 +155,9 @@ uint32_t dataprocessor(uint32_t* AVG_buff, uint32_t AVG_buff_I_max, uint64_t* FF
 	}else if (mode == FFT){
 		//uint32_t i = 0;
 		//void FFT_fp(int64_t* inp, uint32_t inp_L, int64_t* buf)
+		for (uint32_t i = 0; i < FFT_INP_DATA_L; ++i){
+			AVG_buff[i] = FP_acc;
+		}
 		FFT_fp(AVG_buff, FFT_INP_DATA_L, FFT_buff);
 
 	}else if (mode == FLUSH_TWIDDLES){

src/l502_user_process.h

@@ -11,6 +11,8 @@
  ******************************************************************************/
 #include "l502_cmd.h"
 #ifndef L502_USER_PROCESS_H_
+
+    #define FP_acc 1000
 	#define L502_USER_PROCESS_H_
 
 	#ifndef FFT_FP_EXTERNAL_TWIDDLES