add some code

managed_components/espressif__esp-dsp/modules/fft/test_sim/main.c

@@ -0,0 +1,14 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+void test_fft2r();
+
+int main(void)
+{
+    printf("main starts!\n");
+//    xt_iss_profile_enable();
+    test_fft2r();
+//    xt_iss_profile_disable();
+
+    printf("Test done\n");
+}

managed_components/espressif__esp-dsp/modules/fft/test_sim/test_fft2r.c

@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "dsp_common.h"
+
+#include "dspm_mult.h"
+#include "dsps_fft2r.h"
+
+
+
+extern void xt_iss_profile_disable();
+extern void xt_iss_profile_enable();
+
+bool dsp_is_power_of_two(int x)
+{
+    return (x != 0) && ((x & (x - 1)) == 0);
+}
+
+int dsp_power_of_two(int x)
+{
+    for (size_t i = 0; i < 16; i++) {
+        x = x >> 1;
+        if (0 == x) {
+            return i;
+        }
+    }
+    return 0;
+}
+
+#define test_size 128
+
+static float data[test_size * 2];
+static float check_data[test_size * 2];
+static float data_test[test_size * 2];
+
+void test_fft2r()
+{
+
+    int N = sizeof(data) / sizeof(float) / 2;
+    int check_bin = 32;
+    float check_ampl = 2000;
+    for (int i = 0 ; i < N ; i++) {
+        data[i * 2 + 0] = check_ampl * sinf(M_PI / N * check_bin * 2 * i) / (N / 2);
+        data[i * 2 + 1] = 2;
+    }
+    for (int i = 0 ; i < N * 2 ; i++) {
+        check_data[i] = data[i];
+        data_test[i] = -1;
+    }
+
+    // Init FFT tables
+    esp_err_t ret = dsps_fft2r_init_fc32(NULL, 4096);
+    TEST_ESP_OK(ret);
+    int N_check = N;
+    // table = (uint16_t *)dsps_fft2r_rev_tables_fc32[6];
+    // table_size = dsps_fft2r_rev_tables_fc32_size[6];
+
+    xt_iss_profile_enable();
+    dsps_fft2r_fc32(data, N_check);
+//    dsps_bit_rev_lookup_fc32_ae32(data, N_check, dsps_fft2r_rev_tables_fc32[6]);
+    dsps_fft2r_fc32_aes3_(check_data, N_check, dsps_fft_w_table_fc32);
+//    dsps_bit_rev_lookup_fc32_ae32(data, N_check, dsps_fft2r_rev_tables_fc32[6]);
+    xt_iss_profile_disable();
+
+    for (int i = 0 ; i < N_check ; i++) {
+        if (abs(check_data[i] - data[i]) == 0) {
+            printf("Data[%i] =%8.4f, %8.4f, %f \n", i, data[i], check_data[i], check_data[i] - data[i]);
+        } else {
+            printf("ERROR: Data[%i] =%f, %f, %f \n", i, data[i], check_data[i], check_data[i] - data[i]);
+        }
+    }
+
+
+    printf("Test Pass!\n");
+}