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improve support for -S2

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got myself an adafruit "qt py -S2" with tinyUF2 bootloader. So I wanted to get that working. And it does work :-).
FFT time = 10ms (instead of 2ms on classic ESP32)  is a very good result, also virtual USB runs much better now.
This commit is contained in:
Frank
2022-12-22 23:22:58 +01:00
parent f9b9716fdd
commit e6bd66d35d
5 changed files with 81 additions and 9 deletions
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12
usermods/audioreactive/audio_reactive.h
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@@ -264,10 +264,14 @@ static float windowWeighingFactors[samplesFFT] = {0.0f};
// Create FFT object
#ifdef UM_AUDIOREACTIVE_USE_NEW_FFT
// lib_deps += https://github.com/kosme/arduinoFFT#develop @ 1.9.2
#if !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3)
// these options actually cause slow-down on -S2 (-S2 doesn't have floating point hardware)
#define FFT_SPEED_OVER_PRECISION // enables use of reciprocals (1/x etc), and an a few other speedups
#define FFT_SQRT_APPROXIMATION // enables "quake3" style inverse sqrt
#define sqrt(x) sqrtf(x) // little hack that reduces FFT time by 50% on ESP32 (as alternative to FFT_SQRT_APPROXIMATION)
#endif
#define sqrt(x) sqrtf(x) // little hack that reduces FFT time by 10-50% on ESP32 (as alternative to FFT_SQRT_APPROXIMATION)
#else
// around 50% slower on -S2
// lib_deps += https://github.com/blazoncek/arduinoFFT.git
#endif
#include <arduinoFFT.h>
@@ -1447,10 +1451,10 @@ class AudioReactive : public Usermod {
int userloopDelay = int(t_now - lastUMRun);
if (lastUMRun == 0) userloopDelay=0; // startup - don't have valid data from last run.
#ifdef WLED_DEBUG
#if defined(WLED_DEBUG) || defined(SR_DEBUG) || defined(SR_STATS)
// complain when audio userloop has been delayed for long time. Currently we need userloop running between 500 and 1500 times per second.
if ((userloopDelay > 23) && !disableSoundProcessing && (audioSyncEnabled == 0)) {
DEBUG_PRINTF("[AR userLoop] hickup detected -> was inactive for last %d millis!\n", userloopDelay);
if ((userloopDelay > /*23*/ 30) && !disableSoundProcessing && (audioSyncEnabled == 0)) {
USER_PRINTF("[AR userLoop] hickup detected -> was inactive for last %d millis!\n", userloopDelay);
}
#endif

6
usermods/audioreactive/audio_source.h
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@@ -23,14 +23,14 @@
// see https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/hw-reference/chip-series-comparison.html#related-documents
// and https://docs.espressif.com/projects/esp-idf/en/latest/esp32s3/api-reference/peripherals/i2s.html#overview-of-all-modes
#if defined(CONFIG_IDF_TARGET_ESP32C2) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32C5) || defined(CONFIG_IDF_TARGET_ESP32C6) || defined(CONFIG_IDF_TARGET_ESP32H2) || defined(ESP8266) || defined(ESP8265)
#if defined(CONFIG_IDF_TARGET_ESP32C2) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32C5) || defined(CONFIG_IDF_TARGET_ESP32C6) || defined(CONFIG_IDF_TARGET_ESP32H2) || defined(ESP8266) || defined(ESP8265)
// there are two things in these MCUs that could lead to problems with audio processing:
// * no floating point hardware (FPU) support - FFT uses float calculations. If done in software, a strong slow-down can be expected (between 8x and 20x)
// * single core, so FFT task might slow down other things like LED updates
#if !defined(SOC_I2S_NUM) || (SOC_I2S_NUM < 1)
#error This audio reactive usermod does not support ESP32-C2, ESP32-C3 or ESP32-S2.
#error This audio reactive usermod does not support ESP32-C2 or ESP32-C3.
#else
#warning This audio reactive usermod does not support ESP32-C2, ESP32-C3 or ESP32-S2.
#warning This audio reactive usermod does not support ESP32-C2 and ESP32-C3.
#endif
#endif