'board_android-IoT'에 해당되는 글 87건

  1. 2024.07.29 :: ESP8266 , DB18B20 connection
  2. 2024.07.23 :: SWO (Serial Wire Output) setting 2
  3. 2024.07.20 :: Porting STM32F1 Firmware to STM32F4
  4. 2024.07.10 :: CS5480 - Voltage, Current RMS calculation IC
  5. 2024.07.03 :: ADC conversion time calculation
  6. 2024.07.02 :: ADC interrupt reading
board_android-IoT/ESP32 2024. 7. 29. 00:03

ESP8266 , DB18B20 connection

 

- Temperature measuring with DB18B20 and ESP8266 (ESP-01s)

/*********
  Rui Santos
  Complete project details at https://RandomNerdTutorials.com  
*********/
//  esp_01s_DS18B20_temp_sensor_240728-1.ino
#include <OneWire.h>
#include <DallasTemperature.h>

// GPIO where the DS18B20 is connected to
const int oneWireBus = 2  ;// 4;    

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(oneWireBus);

// Pass our oneWire reference to Dallas Temperature sensor
DallasTemperature sensors(&oneWire);

void setup() {
  // Start the Serial Monitor
  Serial.begin(115200);
  // Start the DS18B20 sensor
  sensors.begin();
}

void loop() {
  sensors.requestTemperatures();
  float temperatureC = sensors.getTempCByIndex(0);
  float temperatureF = sensors.getTempFByIndex(0);
  Serial.print(temperatureC);
  Serial.println("ºC");
  Serial.print(temperatureF);
  Serial.println("ºF");
  delay(5000);
}

-

 

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posted by cskimair
:
board_android-IoT/STM32F 2024. 7. 23. 00:27

SWO (Serial Wire Output) setting

- main.c

...
/* USER CODE BEGIN PV */
uint8_t g_bPortStatus = 0;
uint8_t blueButtonStatus=0; 
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_I2S3_Init(void);
static void MX_SPI1_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
  if(GPIO_Pin == GPIO_PIN_0) {
    //HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_0);
  //HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_12);
  blueButtonStatus = ~blueButtonStatus ; 
  }
else if(GPIO_Pin == GPIO_PIN_1) {
  HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_5);
  }
else if(GPIO_Pin == GPIO_PIN_4) {
  HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_6);
  }
}

// in Keil,  redefinition of fpuc is necessary
int fputc(int ch, FILE *f)
{
ITM_SendChar(ch);
return(ch);
}

//in CubeIDE, redefinition of _write is ncessary
int _write(int file, char *ptr, int len)
{
for(int i = 0; i < len; i++)
{
ITM_SendChar(*ptr++);
}
return len;
}
int k =0 , ret ;

void ITM_SendString(char *s)
{
while(*s)
ITM_SendChar(*s++);
}

uint8_t *data = "Hello World from USB CDC\n";

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_I2C1_Init();
  MX_I2S3_Init();
  MX_SPI1_Init();
  MX_USB_DEVICE_Init();
  /* USER CODE BEGIN 2 */

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */

  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
    //HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_12);
  if( blueButtonStatus == SET) 
  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12 , 1) ; 
  else 
  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_12 , 0) ; 
  
    HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_13);
    HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_14);
    HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_15);
    g_bPortStatus = HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_12);
    printf("swo printf:%d\n", k++);//redefinition of fputc required
    k=k%10;
  ITM_SendString("0123456789\n");
    ITM_SendChar('s');
    HAL_Delay(500);
   ret =CDC_Transmit_FS(data, strlen(data));
  HAL_Delay (1000);
  }
  /* USER CODE END 3 */
}// end of main

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posted by cskimair
:
board_android-IoT/STM32F 2024. 7. 20. 16:15

Porting STM32F1 Firmware to STM32F4

https://community.st.com/t5/stm32-mcus-embedded-software/porting-stm32f1-firmware-to-stm32f4/td-p/685386

 

Porting STM32F1 Firmware to STM32F4

Hey all, I want to port this https://github.com/ArduCAM/STM32/tree/master/STM32F103 package to use for an STM32F446RE development board. Can anyone offer any advice as to the best practices of accomplishing this? Would it be modifying mapping of GPIOs, c

community.st.com

Porting STM32F1 Firmware to STM32F4

 

https://www.st.com/resource/en/application_note/dm00024853-migration-and-compatibility-guidelines-for-stm32-microcontroller-applications-stmicroelectronics.pdf

 

https://www.st.com/resource/en/application_note/an4904-migration-of-microcontroller-applications-from-stm32f1-series-to-stm32f4-access-lines-stmicroelectronics.pdf

 

- design guide

- comparison

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posted by cskimair
:
board_android-IoT/STM32F 2024. 7. 10. 18:35

CS5480 - Voltage, Current RMS calculation IC

 


- CS5480 datasheet 
https://statics.cirrus.com/pubs/proDatasheet/CS5480_F3.pdf

- CS5480 Evaluation board 
https://statics.cirrus.com/pubs/rdDatasheet/CDB5480U_DB5.pdf
>CS5480 
https://www.mouser.com/datasheet/2/76/CS5484-80-90_PB_201201-26892.pdf

Application Note/Using the CS5480/84/90 Energy Measurement IC with Rogowski Coil Current Sensors
https://statics.cirrus.com/pubs/appNote/AN365REV1.pdf


- CRD5463PM Power Monitor 
https://statics.cirrus.com/pubs/rdDatasheet/CRD5463PM_RD2.pdf

- Application Note / CS5480/84/90 Measurement Accuracy vs. IEC Standards 
https://www.manualsdir.com/manuals/466436/cirrus-logic-an362.html


Real time monitoring of High Voltage Transmission line conductor sag using RFID radar system
https://az817975.vo.msecnd.net/wm-418498-cmsimages/Saupec_2015_Papers_Combined.pdf

- CS5480-INZ price 
https://www.digikey.in/en/products/detail/cirrus-logic-inc/cs5480-inz/2797392
> 1개당 5,600원 정도 

- CS5480관련 제품 홍보 카달로그 
https://statics.cirrus.com/pubs/brochure/energy_measurement_brochure_201201.pdf

BM1Z002FJ, AC Voltage Zero Cross Detection IC
https://www.rohm.com/products/power-management/ac-voltage-zero-cross-detection-ics/bm1z002fj-product

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posted by cskimair
:
board_android-IoT/STM32F 2024. 7. 3. 09:12

ADC conversion time calculation

ADC - conversion time 계산

 

Conversion time

According to the datasheet, the total conversion time is calculated as follows:
Tconv = Sampling time + 12.5 cycles
Example: With an ADCCLK = 14 MHz and a sampling time of 1.5 cycles: Tconv = 1.5 + 12.5 = 14 cycles = (14cycles/14MHz) = 1 µs

There is an entire article on the Conversion Time and Frequency calculation. You can read it


https://controllerstech.com/adc-conversion-time-frequency-calculation-in-stm32/

 

How to calculate ADC Conversrion Time and Frequency in STM32

ADC Conversion Time = Sampling Time + 12.5 Cycles. Here Sampling Time is something that you can choose during the setup in the CubeMX.

controllerstech.com

 

응용: STM32F107 , ADC clock:

- ADC clock : 12MHz

- 5.1 (Typ)~ 17.1(Max) us

- 5.1us , ADCCLK=12MHz, sampling time of 5.1us: Tconv = 1.5 + 12.5 = 14 clcyes = (14cycles/12MHz) = 1.16us

참고: STM32F103 datasheet :
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.st.com/resource/en/datasheet/stm32f107vc.pdf&ved=2ahUKEwjbpejYxomHAxVXsVYBHZU5AtsQFnoECBoQAQ&usg=AOvVaw21INT5wnsKjGBpccQ4GItf

 

 

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posted by cskimair
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board_android-IoT/STM32F 2024. 7. 2. 12:24

ADC interrupt reading

 

https://m.blog.naver.com/jeon930429/222317966769

 

[STM32CubeIDE] ADC Interrupt

이번 포스팅 목적 'ADC Interrupt' ADC 사용을 Interrupt 방식으로 온도센서값 변환하기...

blog.naver.com

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posted by cskimair
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