NUCLEO: Porovnání verzí

← Porovnání se starší verzí

Aktuální verze z 5. 6. 2021, 06:42

soutěž:

Cortex

Nucleo KIT

Nucleo pinout

Arduino-compatible headers

Morpho headers

These headers give access to all STM32 pins.

Source code

IDE:

Compiler:

Example:

 
#include "mbed.h"
 
DigitalOut myled(LED1);
 
int main() {
    while(1) {
        myled = 1; // LED is ON
        wait(0.2); // 200 ms
        myled = 0; // LED is OFF
        wait(1.0); // 1 sec
    }
}

Blink color LED RGB

#include "mbed.h"
 
DigitalOut red(D5);
DigitalOut blue(D8);
DigitalOut green(D9);
int i;
 
int main() {
    while(1) {
        for (i=1; i<7; i++) {
            red = i & 1;
            blue = i & 2;
            green = i & 4;
            wait(0.2);
        }
    }
}

Read Button

#include "mbed.h"
 
DigitalIn mybutton(USER_BUTTON);
DigitalOut myled(LED1);
 
int main() {
  while(1) {
    if (mybutton == 0) { // Button is pressed
      myled = !myled; // Toggle the LED state
      wait(0.2); // 200 ms
    }
  }
}

PWM

#include "mbed.h"
 
PwmOut mypwm(PWM_OUT);
 
DigitalOut myled(LED1);
 
int main() {
    
    mypwm.period_ms(10);
    mypwm.pulsewidth_ms(1);
  
    printf("pwm set to %.2f %%\n", mypwm.read() * 100);
    
    while(1) {
        myled = !myled;
        wait(1);
    }
}

Nucleo read button interrupt

#include "mbed.h"
 
InterruptIn mybutton(USER_BUTTON);
DigitalOut myled(LED1);
 
float delay = 1.0; // 1 sec
 
void pressed()
{
    if (delay == 1.0)
        delay = 0.2; // 200 ms
    else
        delay = 1.0; // 1 sec
}
 
int main()
{
    mybutton.fall(&pressed);
    while (1) {
        myled = !myled;
        wait(delay);
    }
}

Nucleo_pwm2

#include "mbed.h"
 
DigitalOut  my_led(LED1);
InterruptIn my_button(USER_BUTTON);
PwmOut      my_pwm(PB_3);
 
void pressed() {
    if (my_pwm.read() == 0.25) {
        my_pwm.write(0.75);
    }
    else {
        my_pwm.write(0.25);
    }
}
 
int main()
{
    // Set PWM
    my_pwm.period_ms(10);
    my_pwm.write(0.5);
    
    // Set button
    my_button.fall(&pressed);
    
    while (1) {
        my_led = !my_led;
        wait(0.5); // 500 ms
    }
}

Nucleo_read_analog_value

#include "mbed.h"
 
AnalogIn analog_value(A0);
 
DigitalOut led(LED1);
 
int main() {
    float meas;
    
    printf("\nAnalogIn example\n");
    
    while(1) {
        meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0)
        meas = meas * 3300; // Change the value to be in the 0 to 3300 range
        printf("measure = %.0f mV\n", meas);
        if (meas > 2000) { // If the value is greater than 2V then switch the LED on
          led = 1;
        }
        else {
          led = 0;
        }
        wait(0.2); // 200 ms
    }
}

Nucleo_pwm3

#include "mbed.h"
 
Timeout timer;
DigitalOut my_led(LED1);
DigitalOut my_pwm(D10); // IO used by pwm_io function
 
int on_delay = 0;
int off_delay = 0;
 
void toggleOff(void);
 
void toggleOn(void) {
    my_pwm = 1;
    timer.attach_us(toggleOff, on_delay);
}
 
void toggleOff(void) {
    my_pwm = 0;
    timer.attach_us(toggleOn, off_delay);
}
 
// p_us = signal period in micro_seconds
// dc   = signal duty-cycle (0.0 to 1.0)
void pwm_io(int p_us, float dc) {
    timer.detach();
    if ((p_us == 0) || (dc == 0)) {
        my_pwm = 0;
        return;
    }
    if (dc >= 1) {
        my_pwm = 1;
        return;
    }
    on_delay = (int)(p_us * dc);
    off_delay = p_us - on_delay;
    toggleOn();
}
 
int main() {
    
    pwm_io(20000, 0.25); // 20ms - 25%
    
    while(1) {
        my_led = !my_led;
        wait(0.5);
    }
}

[]

7 segment

This is code from https://goo.gl/3BHgTp

....

void write_digit(__IO uint8_t digit){
	if (digit == 1){
		// digit 1 xuat 1; digit 2, 3, 4 xuat 0
		GPIO_WriteBit(GPIOB, GPIO_Pin_1, (BitAction)(1)); // digit 1
		GPIO_WriteBit(GPIOB, GPIO_Pin_0, (BitAction)(0)); // digit 2
		GPIO_WriteBit(GPIOA, GPIO_Pin_7, (BitAction)(0)); // digit 3
		GPIO_WriteBit(GPIOA, GPIO_Pin_6, (BitAction)(0)); // digit 4
	}
	if (digit == 2){
		// digit 2 xuat 1; digit 1, 3, 4 xuat 0
		GPIO_WriteBit(GPIOB, GPIO_Pin_1, (BitAction)(0)); // digit 1
		GPIO_WriteBit(GPIOB, GPIO_Pin_0, (BitAction)(1)); // digit 2
		GPIO_WriteBit(GPIOA, GPIO_Pin_7, (BitAction)(0)); // digit 3
		GPIO_WriteBit(GPIOA, GPIO_Pin_6, (BitAction)(0)); // digit 4
	}

}


void write_led_7_segment(__IO uint8_t number){
	
	// Muc logic 0 -> led sang, muc logic 1 -> led toi
	if (number == 0){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(0)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(0)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(1)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 1){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(1)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(1)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(1)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(1)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(1)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 2){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(1)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(0)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(1)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 3){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(1)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(1)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 4){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(1)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(1)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(1)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(0)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 5){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(1)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(1)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(0)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 6){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(1)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(0)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(0)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 7){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(1)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(1)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(1)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(1)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 8){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(0)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(0)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
	if (number == 9){
		GPIO_WriteBit(GPIOA, GPIO_Pin_12, (BitAction)(0)); // led A
		GPIO_WriteBit(GPIOB, GPIO_Pin_4, (BitAction)(0)); // led B
		GPIO_WriteBit(GPIOA, GPIO_Pin_15, (BitAction)(0)); // led C
		GPIO_WriteBit(GPIOB, GPIO_Pin_6, (BitAction)(0)); // led D
		GPIO_WriteBit(GPIOB, GPIO_Pin_7, (BitAction)(1)); // led E
		GPIO_WriteBit(GPIOA, GPIO_Pin_11, (BitAction)(0)); // led F
		GPIO_WriteBit(GPIOB, GPIO_Pin_3, (BitAction)(0)); // led G
		GPIO_WriteBit(GPIOB, GPIO_Pin_5, (BitAction)(1)); // led DP
	}
}

....

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

NUCLEO: Porovnání verzí

Aktuální verze z 5. 6. 2021, 06:42

Obsah

Source code

Blink color LED RGB

Read Button

PWM

Nucleo read button interrupt

Nucleo_pwm2

Nucleo_read_analog_value

Nucleo_pwm3

[]

7 segment

Navigační menu

@@ Řádek 2: / Řádek 2: @@
 [[Soubor:Cortex Challenge 2015.png|link=http://measure.feld.cvut.cz/soutez/soutez2015]]
+{| class="toccolours" cellpadding="5" style="float: right; clear: right; margin: 0 0 1em 1em; font-size: 85%; width: 25em"
+| colspan="2" style="text-align: center; font-size: larger; background-color: lightblue;" | '''''Cortex'''''
+|- style="vertical-align: top;"
+|Nucleo KIT
 [[Soubor:Cortex Challenge 2015 01.png|link=https://developer.mbed.org/platforms/ST-Nucleo-F030R8/|Vývojový kit|right]]
-==Nucleo pinout==
+|- style="vertical-align: top;"
+|Nucleo pinout
 Arduino-compatible headers
-[[Soubor:Nucleo pinout.png|600px]]
+[[Soubor:Nucleo pinout.png|400px]]
-==Morpho headers==
+Morpho headers
 These headers give access to all STM32 pins.
-[[Soubor:Morpho headers.png|600px]]
+[[Soubor:Morpho headers.png|400px|right]]
+{{#widget:YouTube|id=BrMw5TNQROo|height=270|width=360|Getting started with ARM mbed Integrated Development Environment|right}}
-{{#widget:YouTube|id=BrMw5TNQROo|height=360|width=480|Getting started with ARM mbed Integrated Development Environment|right}}
+|}
+== Source code  ==
-== Source code  ==
+IDE:
+[[Soubor:mbed.png|link=https://developer.mbed.org/compiler/|IDE]]
+Compiler:
+[[Soubor:mbed-compiler.png|link=https://os.mbed.com/accounts/login/?next=%2Fide%2F|compiler]]
+Example:
 <source lang="cpp">
@@ Řádek 27: / Řádek 44: @@
 #include "mbed.h"
-<source lang="asm">
 DigitalOut myled(LED1);
@@ Řádek 88: / Řádek 103: @@
 <source lang="cpp">
 #include "mbed.h"
@@ Řádek 107: / Řádek 121: @@
      }
 }
 </source>
+=== [https://developer.mbed.org/teams/ST/code/Nucleo_read_button_interrupt/?platform=ST-Nucleo-F030R8 Nucleo read button interrupt]  ===
-=== 7 segment ===
+<source lang="cpp">
+#include "mbed.h"
+InterruptIn mybutton(USER_BUTTON);
+DigitalOut myled(LED1);
+float delay = 1.0; // 1 sec
+void pressed()
+{
+    if (delay == 1.0)
+        delay = 0.2; // 200 ms
+    else
+        delay = 1.0; // 1 sec
+}
+int main()
+{
+    mybutton.fall(&pressed);
+    while (1) {
+        myled = !myled;
+        wait(delay);
+    }
+}
+</source>
-This is my code from https://goo.gl/3BHgTp
+=== [https://developer.mbed.org/teams/ST/code/Nucleo_pwm2/?platform=ST-Nucleo-F030R8 Nucleo_pwm2]  ===
 <source lang="cpp">
+#include "mbed.h"
-/**
-  ******************************************************************************
+DigitalOut  my_led(LED1);
-  * @file    main.c
+InterruptIn my_button(USER_BUTTON);
-  * @author  HuongLQ
+PwmOut      my_pwm(PB_3);
-  * @version V1.0.0
-	* @kit STM32F030R8T6 Discovery
+void pressed() {
-  * @date    01/05/2014
+    if (my_pwm.read() == 0.25) {
-  ******************************************************************************
+        my_pwm.write(0.75);
+    }
-  */
+    else {
+        my_pwm.write(0.25);
-#include "main.h"
+    }
+}
-GPIO_InitTypeDef GPIO_InitStructure;
+int main()
-USART_InitTypeDef USART1_InitStructure;
-EXTI_InitTypeDef EXTI_InitStructure;
-NVIC_InitTypeDef NVIC_InitStructure;
-char RxBuffer1[10];
-uint8_t RxIndex1 = 0;
-uint8_t led_number[4] = {0,0,0,0};
-//uint8_t NbrOfDataToRead1 = 4;
-uint8_t t;
-void write_led_7_segment(__IO uint8_t number);
-void write_digit(__IO uint8_t digit);
-void GPIO_Configuration(void);
-void EXTI_Configuration(void);
-void USART_Configuration(void);
-int main(void)
 {
-  GPIO_Configuration();
+    // Set PWM
-  EXTI_Configuration();
+    my_pwm.period_ms(10);
-	USART_Configuration();
+    my_pwm.write(0.5);
-	SysTick_Config(SystemCoreClock / 1000);
+    // Set button
+    my_button.fall(&pressed);
-  while(1)
-  {
+    while (1) {
-		//USART_SendData(USART1, 'a');
+        my_led = !my_led;
-	}
+        wait(0.5); // 500 ms
+    }
 }
+</source>
-void GPIO_Configuration(){
+=== [https://developer.mbed.org/teams/ST/code/Nucleo_read_analog_value/file/6d058686efbf/main.cpp Nucleo_read_analog_value]  ===
-	// Enable GPIOA & GPIOB Clock
-	RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA | RCC_AHBPeriph_GPIOB, ENABLE);
-	// Cau hinh PA6,7,13-15 va PB0,1,3-7 la chan ket noi cac thanh LED, che do output push-pull.
-	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_15;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
-	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
-	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
-  GPIO_Init(GPIOA, &GPIO_InitStructure);
-	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
-	GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
-	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
-  GPIO_Init(GPIOB, &GPIO_InitStructure);
-	// Cau hinh PA0-2 la chan ket noi button, che do input floating.
-	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
-	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
-	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
-	GPIO_Init(GPIOA, &GPIO_InitStructure);
-}
-void USART_Configuration(){
+<source lang="cpp">
-	// Enable peripheral USART clock
+#include "mbed.h"
-	RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
+AnalogIn analog_value(A0);
-	// Cau hinh AFConfig de thuc hien chuc nang thay the
-	// (neu k su dung AFConfig thi cac pin chi la GPIO ma k thuc hien chuc nang USART)
+DigitalOut led(LED1);
-	GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1);
-  GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);
+int main() {
+    float meas;
-//  // Cau hinh USART1 TX la chan output push - pull
-//	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
+    printf("\nAnalogIn example\n");
-//  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
-//  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+    while(1) {
-//  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+        meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0)
-//  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
+        meas = meas * 3300; // Change the value to be in the 0 to 3300 range
-//  GPIO_Init(GPIOA, &GPIO_InitStructure);
+        printf("measure = %.0f mV\n", meas);
-//
+        if (meas > 2000) { // If the value is greater than 2V then switch the LED on
-//	// Cau hinh USART1 RX la chan input floating.
+          led = 1;
-//	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
+        }
-//	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
+        else {
-//	GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+          led = 0;
-//	GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        wait(0.2); // 200 ms
-	GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_9 | GPIO_Pin_10;
+    }
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
-  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
-  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
-  GPIO_Init(GPIOA, &GPIO_InitStructure);
-	NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
-  NVIC_InitStructure.NVIC_IRQChannelPriority = 0x02;
-  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-  NVIC_Init(&NVIC_InitStructure);
-	// Cau hinh USART1
-	USART1_InitStructure.USART_BaudRate = 115200;
-  USART1_InitStructure.USART_WordLength = USART_WordLength_8b;
-  USART1_InitStructure.USART_StopBits = USART_StopBits_1;
-  USART1_InitStructure.USART_Parity = USART_Parity_No;
-  USART1_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-  USART1_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
-	USART_Init(USART1, &USART1_InitStructure);
-	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
-	//USART_ITConfig(USART1, USART_IT_TXE, ENABLE);
-	// Enable UART1
-	USART_Cmd(USART1, ENABLE);
 }
+</source>
+=== [https://developer.mbed.org/teams/ST/code/Nucleo_pwm3/file/8d83d0909665/main.cpp Nucleo_pwm3]  ===
-void EXTI_Configuration(){
+<source lang="cpp">
-	// Enable SYSCFG clock
+#include "mbed.h"
-  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
+Timeout timer;
-  // Ket noi EXTI Line0,1 toi PA0,1
+DigitalOut my_led(LED1);
-  SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource0);
+DigitalOut my_pwm(D10); // IO used by pwm_io function
+int on_delay = 0;
-  // Cau hinh EXTI0,1
+int off_delay = 0;
-  EXTI_InitStructure.EXTI_Line = EXTI_Line0;
-  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+void toggleOff(void);
-   EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
-  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+void toggleOn(void) {
-  EXTI_Init(&EXTI_InitStructure);
+    my_pwm = 1;
+    timer.attach_us(toggleOff, on_delay);
-  // Cau hinh uu tien ngat cho ngat EXTI
+}
-  NVIC_InitStructure.NVIC_IRQChannel = EXTI0_1_IRQn;
-  NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
+void toggleOff(void) {
-  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    my_pwm = 0;
-  NVIC_Init(&NVIC_InitStructure);
+    timer.attach_us(toggleOn, off_delay);
+}
-	EXTI_ClearITPendingBit(EXTI_Line0);
+// p_us = signal period in micro_seconds
+// dc   = signal duty-cycle (0.0 to 1.0)
+void pwm_io(int p_us, float dc) {
+    timer.detach();
+    if ((p_us == 0) || (dc == 0)) {
+        my_pwm = 0;
+        return;
+    }
+    if (dc >= 1) {
+        my_pwm = 1;
+        return;
+    }
+    on_delay = (int)(p_us * dc);
+    off_delay = p_us - on_delay;
+    toggleOn();
 }
+int main() {
-void SysTick_Handler(void)
-{
+    pwm_io(20000, 0.25); // 20ms - 25%
-	static uint32_t time = 0;
-	time++;
+    while(1) {
-	if ((time > 0) && (time <= 5)){
+        my_led = !my_led;
-		write_digit(1);
+        wait(0.5);
-		write_led_7_segment(led_number[0]);
+    }
-	}
-	if ((time > 5) && (time <= 10)){
-		write_digit(2);
-		write_led_7_segment(led_number[1]);
-	}
-	if ((time > 10) && (time <= 15)){
-		write_digit(3);
-		write_led_7_segment(led_number[2]);
-	}
-	if ((time > 15) && (time <= 20)){
-		write_digit(4);
-		write_led_7_segment(led_number[3]);
-		if (time == 20){
-			time = 0;
-		}
-	}
 }
+</source>
+=== []  ===
-void EXTI0_1_IRQHandler(void)
+<source lang="cpp">
-{
-	if(EXTI_GetITStatus(EXTI_Line0) != RESET)
-	{
-		USART_SendData(USART1, 'S');
-		EXTI_ClearITPendingBit(EXTI_Line0);
-	}
-}
+</source>
-void USART1_IRQHandler(void)
+=== 7 segment ===
-{  // co the su dung static cho bien RxIndex1 de co the reset bien nay ve 0
-	//static uint8_t RxIndex1 = 0;
-	uint8_t i = 0;
-//	if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) // Received characters modify string
-//		{
-//			if(USART_ReceiveData(USART1)== '1')
-//			USART_SendData(USART1, 'a');
-//		}
-//	USART_ClearITPendingBit(USART1, USART_IT_RXNE);
+This is code from https://goo.gl/3BHgTp
-	if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) // Received characters modify string
+<source lang="cpp">
-		{
-			//RxBuffer1[RxIndex1] = USART_ReceiveData(USART1);
-			//USART_SendData(USART1, RxBuffer1[RxIndex1]);
-			//USART_SendData(USART1, RxBuffer1[0]);
-			//led_number[RxIndex1] = (uint8_t)(RxBuffer1[RxIndex1]);
-//			//USART_SendData(USART1, 'a');
-			led_number[RxIndex1] = USART_ReceiveData(USART1);
-			USART_SendData(USART1, led_number[RxIndex1]);
-			RxIndex1++;
-//			if (RxIndex1 >= 4){
-//				USART_ITConfig(USART1, USART_IT_RXNE, DISABLE);
-//				RxIndex1 = 0;
-//			}
-		}
-//	for (i = 0; i < 4; i++){
-//		led_number[i] = (uint8_t)RxBuffer1[i];
-//		USART_SendData(USART1, led_number[i]);
-//	}
-	//RxIndex1 = 0; // Khi su dung RxIndex1 = 0 khi RxIndex1 khong phai la bien static-> Du lieu moi luon duoc gan vao RxBuffer1[0]
-	if (RxIndex1 == 4){
-//		for (i = 0; i < 4; i++)
-//		{
-//			led_number[i] = (uint8_t)RxBuffer1[i];
-//			USART_SendData(USART1, led_number[i]);
-//		}
-		RxIndex1 = 0;
-	}
-	USART_ClearITPendingBit(USART1, USART_IT_RXNE);
-}
+....
 void write_digit(__IO uint8_t digit){
@@ Řádek 370: / Řádek 295: @@
 		GPIO_WriteBit(GPIOA, GPIO_Pin_6, (BitAction)(0)); // digit 4
 	}
-	if (digit == 3){
-		// digit 3 xuat 1; digit 1, 2, 4 xuat 0
-		GPIO_WriteBit(GPIOB, GPIO_Pin_1, (BitAction)(0)); // digit 1
-		GPIO_WriteBit(GPIOB, GPIO_Pin_0, (BitAction)(0)); // digit 2
-		GPIO_WriteBit(GPIOA, GPIO_Pin_7, (BitAction)(1)); // digit 3
-		GPIO_WriteBit(GPIOA, GPIO_Pin_6, (BitAction)(0)); // digit 4
-	}
-	if (digit == 4){
-		// digit 4 xuat 1; digit 1, 2, 3 xuat 0
-		GPIO_WriteBit(GPIOB, GPIO_Pin_1, (BitAction)(0)); // digit 1
-		GPIO_WriteBit(GPIOB, GPIO_Pin_0, (BitAction)(0)); // digit 2
-		GPIO_WriteBit(GPIOA, GPIO_Pin_7, (BitAction)(0)); // digit 3
-		GPIO_WriteBit(GPIOA, GPIO_Pin_6, (BitAction)(1)); // digit 4
-	}
 }
@@ Řádek 492: / Řádek 404: @@
 }
+....
-#ifdef  USE_FULL_ASSERT
-/**
-  * @brief  Reports the name of the source file and the source line number
-  *   where the assert_param error has occurred.
-  * @param  file: pointer to the source file name
-  * @param  line: assert_param error line source number
-  * @retval None
-  */
-void assert_failed(uint8_t* file, uint32_t line)
-{
-  /* User can add his own implementation to report the file name and line number,
-     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
-  /* Infinite loop */
-  while (1)
-  {}
-}
-#endif
-/**
-  * @}
-  */
 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
 </source>

NUCLEO: Porovnání verzí

Aktuální verze z 5. 6. 2021, 06:42

Source code

Blink color LED RGB

Read Button

PWM

Nucleo read button interrupt

Nucleo_pwm2

Nucleo_read_analog_value

Nucleo_pwm3

[]

7 segment

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