Charles Andre
multithreading example
Revision 113:233a2fac1911, committed 2019-12-03
- Comitter:
- candre97
- Date:
- Tue Dec 03 22:39:22 2019 +0000
- Parent:
- 112:a0fd359ec3a6
- Commit message:
- yutong, look here
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
diff -r a0fd359ec3a6 -r 233a2fac1911 main.cpp
--- a/main.cpp Mon Dec 02 06:12:17 2019 +0000
+++ b/main.cpp Tue Dec 03 22:39:22 2019 +0000
@@ -28,7 +28,7 @@
#define WINDOW_SIZE DEF_WINLENGTH - DEF_FRAMESHIFT
#define ARRAY_SIZE 800
-#define BUFFSIZE 1760 // size of buffer = sampling_time * sampling_rate * size(float)
+#define BUFFSIZE 11100 // size of buffer = sampling_time * sampling_rate * size(float)
//DigitalOut led1(LED1);
//DigitalOut led2(LED2);
Thread thread_adc;
@@ -115,33 +115,33 @@
buff.clear();
printf("library read val: %u\n", mic.read_u16());
- /* Setup and initialize ADC converter https://www.davidkebo.com/microcontroller-interfacing */
- RCC->APB2RSTR |= 1 << 9; /* Enable ADC1 clock */
- GPIOA->CRL &= 0xFFF0FFFF; /* Configure PC4 as ADC.14 input */
- ADC1->SQR1 = 0x00000000; /* Regular channel 1 conversion */
- ADC1->SQR2 = 0x00000000; /* Clear register */
- ADC1->SQR3 = 14 << 0; /* SQ1 = channel 14 */
- ADC1->SMPR1 = 5 << 12; /* Channel 14 sample time is 55.5 cyc */
- ADC1->SMPR2 = 0x00000000; /* Clear register */
- ADC1->CR1 = 1 << 8; /* Scan mode on */
- ADC1->CR2 = (1 << 20) | /* Enable external trigger */
- (7 << 17) | /* EXTSEL = SWSTART */
- (1 << 1) | /* Continuous conversion */
- (1 << 0) ; /* ADC enable */
- ADC1->CR2 |= 1 << 3; /* Initialize calibration registers */
- while (ADC1->CR2 & (1 << 3)); /* Wait for initialization to finish */
- ADC1->CR2 |= 1 << 2; /* Start calibration */
- while (ADC1->CR2 & (1 << 2)); /* Wait for calibration to finish */
- ADC1->CR2 |= 1 << 22; /* Start first conversion */
-
- for (;;) { /* Loop forever */
- if (ADC1->SR & (1 << 1)) { /* If conversion has finished */
- raw_adc = ADC1->DR & 0x0FFF; /* Read AD converted value */
- ADC1->CR2 |= 1 << 22; /* Start new conversion */
- }
- printf("register read val: %u\n", raw_adc);
- thread_sleep_for(2000);
- }
+// /* Setup and initialize ADC converter https://www.davidkebo.com/microcontroller-interfacing */
+// RCC->APB2RSTR |= 1 << 9; /* Enable ADC1 clock */
+// GPIOA->ARL &= 0xFFF0FFFF; /* Configure PC4 as ADC.14 input */
+// ADC1->SQR1 = 0x00000000; /* Regular channel 1 conversion */
+// ADC1->SQR2 = 0x00000000; /* Clear register */
+// ADC1->SQR3 = 14 << 0; /* SQ1 = channel 14 */
+// ADC1->SMPR1 = 5 << 12; /* Channel 14 sample time is 55.5 cyc */
+// ADC1->SMPR2 = 0x00000000; /* Clear register */
+// ADC1->CR1 = 1 << 8; /* Scan mode on */
+// ADC1->CR2 = (1 << 20) | /* Enable external trigger */
+// (7 << 17) | /* EXTSEL = SWSTART */
+// (1 << 1) | /* Continuous conversion */
+// (1 << 0) ; /* ADC enable */
+// ADC1->CR2 |= 1 << 3; /* Initialize calibration registers */
+// while (ADC1->CR2 & (1 << 3)); /* Wait for initialization to finish */
+// ADC1->CR2 |= 1 << 2; /* Start calibration */
+// while (ADC1->CR2 & (1 << 2)); /* Wait for calibration to finish */
+// ADC1->CR2 |= 1 << 22; /* Start first conversion */
+//
+// for (;;) { /* Loop forever */
+// if (ADC1->SR & (1 << 1)) { /* If conversion has finished */
+// raw_adc = ADC1->DR & 0x0FFF; /* Read AD converted value */
+// ADC1->CR2 |= 1 << 22; /* Start new conversion */
+// }
+// printf("register read val: %u\n", raw_adc);
+// thread_sleep_for(2000);
+// }