diff options
Diffstat (limited to 'examples/device/audio_test/src')
| -rw-r--r-- | examples/device/audio_test/src/main.c | 8 | ||||
| -rw-r--r-- | examples/device/audio_test/src/plot_audio_samples.py | 5 | ||||
| -rw-r--r-- | examples/device/audio_test/src/tusb_config.h | 2 | ||||
| -rw-r--r-- | examples/device/audio_test/src/usb_descriptors.c | 2 |
4 files changed, 10 insertions, 7 deletions
diff --git a/examples/device/audio_test/src/main.c b/examples/device/audio_test/src/main.c index a3bf767f4..b5ca41d36 100644 --- a/examples/device/audio_test/src/main.c +++ b/examples/device/audio_test/src/main.c @@ -1,4 +1,4 @@ -/* +/* * The MIT License (MIT) * * Copyright (c) 2020 Reinhard Panhuber @@ -71,7 +71,7 @@ audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX+1]; audio_control_range_4_n_t(1) sampleFreqRng; // Sample frequency range state // Audio test data -uint16_t test_buffer_audio[CFG_TUD_AUDIO_EP_SZ_IN/2]; +uint16_t test_buffer_audio[(CFG_TUD_AUDIO_EP_SZ_IN - 2) / 2]; uint16_t startVal = 0; void led_blinking_task(void); @@ -397,7 +397,7 @@ bool tud_audio_tx_done_pre_load_cb(uint8_t rhport, uint8_t itf, uint8_t ep_in, u (void) ep_in; (void) cur_alt_setting; - tud_audio_write ((uint8_t *)test_buffer_audio, CFG_TUD_AUDIO_EP_SZ_IN); + tud_audio_write ((uint8_t *)test_buffer_audio, CFG_TUD_AUDIO_EP_SZ_IN - 2); return true; } @@ -410,7 +410,7 @@ bool tud_audio_tx_done_post_load_cb(uint8_t rhport, uint16_t n_bytes_copied, uin (void) ep_in; (void) cur_alt_setting; - for (size_t cnt = 0; cnt < CFG_TUD_AUDIO_EP_SZ_IN/2; cnt++) + for (size_t cnt = 0; cnt < (CFG_TUD_AUDIO_EP_SZ_IN - 2) / 2; cnt++) { test_buffer_audio[cnt] = startVal++; } diff --git a/examples/device/audio_test/src/plot_audio_samples.py b/examples/device/audio_test/src/plot_audio_samples.py index 6e3c4978e..1504684a6 100644 --- a/examples/device/audio_test/src/plot_audio_samples.py +++ b/examples/device/audio_test/src/plot_audio_samples.py @@ -2,6 +2,7 @@ import sounddevice as sd import matplotlib.pyplot as plt import numpy as np import platform +import csv if __name__ == '__main__': @@ -31,4 +32,6 @@ if __name__ == '__main__': plt.ylabel('Amplitude') plt.title('MicNode') plt.show() -
\ No newline at end of file + + samples = np.array(myrecording) + np.savetxt('Output.csv', samples, delimiter=",", fmt='%s') diff --git a/examples/device/audio_test/src/tusb_config.h b/examples/device/audio_test/src/tusb_config.h index 355ed1011..9f38612a9 100644 --- a/examples/device/audio_test/src/tusb_config.h +++ b/examples/device/audio_test/src/tusb_config.h @@ -114,7 +114,7 @@ extern "C" { #define CFG_TUD_AUDIO_ENABLE_EP_IN 1 #define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX 2 // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX 1 // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below - be aware: for different number of channels you need another descriptor! -#define CFG_TUD_AUDIO_EP_SZ_IN 48 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX // 48 Samples (48 kHz) x 2 Bytes/Sample x 1 Channel +#define CFG_TUD_AUDIO_EP_SZ_IN (48 + 1) * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX // 48 Samples (48 kHz) x 2 Bytes/Sample x CFG_TUD_AUDIO_N_CHANNELS_TX Channels - One extra sample is needed for asynchronous transfer adjustment, see feedback EP #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX CFG_TUD_AUDIO_EP_SZ_IN // Maximum EP IN size for all AS alternate settings used #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ CFG_TUD_AUDIO_EP_SZ_IN + 1 diff --git a/examples/device/audio_test/src/usb_descriptors.c b/examples/device/audio_test/src/usb_descriptors.c index da3e203d7..891e90802 100644 --- a/examples/device/audio_test/src/usb_descriptors.c +++ b/examples/device/audio_test/src/usb_descriptors.c @@ -1,4 +1,4 @@ -/* +/* * The MIT License (MIT) * * Copyright (c) 2019 Ha Thach (tinyusb.org) |