stm32f411/stm32f411e-disco/Src/main.c
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1 /*
2  Copyright 2021 Picovoice Inc.
3 
4  You may not use this file except in compliance with the license. A copy of the license is located in the "LICENSE"
5  file accompanying this source.
6 
7  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
8  an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
9  specific language governing permissions and limitations under the License.
10 */
11 
12 #include <stdbool.h>
13 #include <stdio.h>
14 #include <stdlib.h>
15 
16 #include "stm32f411e_discovery.h"
17 
18 #include "pv_porcupine_mcu.h"
19 
20 #include "pv_audio_rec.h"
21 #include "pv_params.h"
22 #include "pv_st_f411.h"
23 
24 #define MEMORY_BUFFER_SIZE (20 * 1024)
25 
26 static int8_t memory_buffer[MEMORY_BUFFER_SIZE] __attribute__((aligned(16)));
27 
28 static const char* ACCESS_KEY = ... //AccessKey string obtained from Picovoice Console (https://picovoice.ai/console/)
29 
30 static const int32_t KEYWORD_MODEL_SIZES = sizeof(DEFAULT_KEYWORD_ARRAY);
31 static const void *KEYWORD_MODELS = DEFAULT_KEYWORD_ARRAY;
32 static const float SENSITIVITY = 0.75f;
33 
34 static void wake_word_callback(void) {
35  printf("[wake word]\n");
37 }
38 
39 static void error_handler(void) {
40  while(true);
41 }
42 
43 int main(void) {
44 
45  pv_status_t status = pv_board_init();
46  if (status != PV_STATUS_SUCCESS) {
47  error_handler();
48  }
49 
50  const uint8_t *board_uuid = pv_get_uuid();
51  printf("UUID: ");
52  for (uint32_t i = 0; i < pv_get_uuid_size(); i++) {
53  printf(" %.2x", board_uuid[i]);
54  }
55  printf("\r\n");
56 
57  status = pv_audio_rec_init();
58  if (status != PV_STATUS_SUCCESS) {
59  printf("Audio init failed with '%s'", pv_status_to_string(status));
60  error_handler();
61  }
62 
63  status = pv_audio_rec_start();
64  if (status != PV_STATUS_SUCCESS) {
65  printf("Recording audio failed with '%s'", pv_status_to_string(status));
66  error_handler();
67  }
68 
69  pv_porcupine_t *handle = NULL;
70 
71  status = pv_porcupine_init(
72  ACCESS_KEY,
74  memory_buffer,
75  1,
78  &SENSITIVITY,
79  &handle);
80 
81  if (status != PV_STATUS_SUCCESS) {
82  printf("Porcupine init failed with '%s'", pv_status_to_string(status));
83  error_handler();
84  }
85 
86  uint32_t frame_number = 0;
87  while (true) {
88  const int16_t *buffer = pv_audio_rec_get_new_buffer();
89  if (buffer) {
90  int32_t keyword_index;
91  const pv_status_t status = pv_porcupine_process(handle, buffer, &keyword_index);
92  if (status != PV_STATUS_SUCCESS) {
93  printf("Porcupine process failed with '%s'", pv_status_to_string(status));
94  error_handler();
95  }
96  if (keyword_index != -1) {
97  frame_number = 0;
99  }
100  if (frame_number++ > 20) {
101  BSP_LED_Off(LED4);
102  frame_number = 0;
103  }
104  }
105 
106  }
107  pv_board_deinit();
109  pv_porcupine_delete(handle);
110 }
111 
pv_audio_rec_start
pv_status_t pv_audio_rec_start(void)
Definition: imxrt1050/imxrt1050-evkb/source/pv_audio_rec.c:186
pv_porcupine_init
PV_API pv_status_t pv_porcupine_init(const char *access_key, const char *model_path, int32_t num_keywords, const char *const *keyword_paths, const float *sensitivities, pv_porcupine_t **object)
NULL
#define NULL
Definition: porcupine/demo/c/dr_libs/tests/external/miniaudio/extras/speex_resampler/thirdparty/resample.c:92
LED4
@ LED4
Definition: stm32f4_discovery.h:65
pv_board_deinit
void pv_board_deinit(void)
Definition: pv_imxrt1050.c:74
__attribute__
static int8_t memory_buffer[MEMORY_BUFFER_SIZE] __attribute__((aligned(16)))
ACCESS_KEY
static const char * ACCESS_KEY
Definition: stm32f411/stm32f411e-disco/Src/main.c:28
pv_get_uuid
const uint8_t * pv_get_uuid(void)
Definition: pv_imxrt1050.c:31
BSP_LED_Off
void BSP_LED_Off(Led_TypeDef Led)
Turns selected LED Off.
Definition: stm32f4_discovery.c:211
pv_porcupine_process
PV_API pv_status_t pv_porcupine_process(pv_porcupine_t *object, const int16_t *pcm, int32_t *keyword_index)
pv_audio_rec_get_new_buffer
const int16_t * pv_audio_rec_get_new_buffer(void)
Definition: imxrt1050/imxrt1050-evkb/source/pv_audio_rec.c:202
PV_STATUS_SUCCESS
@ PV_STATUS_SUCCESS
Definition: porcupine/include/picovoice.h:34
BSP_LED_On
void BSP_LED_On(Led_TypeDef Led)
Turns selected LED On.
Definition: stm32f4_discovery.c:197
pv_status_t
pv_status_t
Definition: porcupine/include/picovoice.h:33
main
int main(void)
Definition: stm32f411/stm32f411e-disco/Src/main.c:43
MEMORY_BUFFER_SIZE
#define MEMORY_BUFFER_SIZE
Definition: stm32f411/stm32f411e-disco/Src/main.c:24
pv_board_init
pv_status_t pv_board_init(void)
Definition: pv_imxrt1050.c:39
wake_word_callback
static void wake_word_callback(void)
Definition: stm32f411/stm32f411e-disco/Src/main.c:34
pv_porcupine_delete
PV_API void pv_porcupine_delete(pv_porcupine_t *object)
pv_get_uuid_size
const uint32_t pv_get_uuid_size(void)
Definition: pv_imxrt1050.c:35
KEYWORD_MODELS
static const void * KEYWORD_MODELS
Definition: stm32f411/stm32f411e-disco/Src/main.c:31
pv_porcupine_mcu.h
pv_porcupine_t
struct pv_porcupine pv_porcupine_t
Definition: include/pv_porcupine.h:33
SENSITIVITY
static const float SENSITIVITY
Definition: stm32f411/stm32f411e-disco/Src/main.c:32
error_handler
static void error_handler(void)
Definition: stm32f411/stm32f411e-disco/Src/main.c:39
pv_audio_rec_deinit
void pv_audio_rec_deinit(void)
Definition: imxrt1050/imxrt1050-evkb/source/pv_audio_rec.c:216
pv_st_f411.h
stm32f411e_discovery.h
This file contains definitions for STM32F401-Discovery Kit's Leds and push-button hardware resources.
pv_status_to_string
const PV_API char * pv_status_to_string(pv_status_t status)
pv_audio_rec_init
pv_status_t pv_audio_rec_init(void)
Definition: imxrt1050/imxrt1050-evkb/source/pv_audio_rec.c:125
KEYWORD_MODEL_SIZES
static const int32_t KEYWORD_MODEL_SIZES
Definition: imxrt1050/imxrt1050-evkb/source/main.c:28


picovoice_driver
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autogenerated on Fri Apr 1 2022 02:13:56