mirror
/
arduinoFFT
kopia lustrzana https://github.com/kosme/arduinoFFT
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

Fix bug in example 1. Negative numbers were stored in unsigned var

pull/8/head
Enrique Condes 2016-12-30 16:35:36 -06:00
rodzic 11a37ab10f
commit 3e56804d95
1 zmienionych plików z 13 dodań i 13 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

2
Examples/FFT_01/FFT_01.ino
Wyświetl plik

@ -53,7 +53,7 @@ void loop()
double cycles = (((samples-1) * signalFrequency) / samplingFrequency); //Number of signal cycles that the sampling will read double cycles = (((samples-1) * signalFrequency) / samplingFrequency); //Number of signal cycles that the sampling will read
for (uint8_t i = 0; i < samples; i++) for (uint8_t i = 0; i < samples; i++)
{ {
vReal[i] = uint8_t((amplitude * (sin((i * (Theta * cycles)) / samples))) / 2.0);/* Build data with positive and negative values*/ vReal[i] = int8_t((amplitude * (sin((i * (Theta * cycles)) / samples))) / 2.0);/* Build data with positive and negative values*/
//vReal[i] = uint8_t((amplitude * (sin((i * (6.2831 * cycles)) / samples) + 1.0)) / 2.0);/* Build data displaced on the Y axis to include only positive values*/ //vReal[i] = uint8_t((amplitude * (sin((i * (6.2831 * cycles)) / samples) + 1.0)) / 2.0);/* Build data displaced on the Y axis to include only positive values*/
} }
Serial.println("Data:"); Serial.println("Data:");