STM32F446ZET6 Microcontroller Board Documentation
The STM32F446ZET6 is a 32-bit microcontroller board from STMicroelectronics, based on the STM32F446ZET6 MCU. It features a high-performance Arm Cortex-M4 processor, 512 KB of Flash memory, and 128 KB of SRAM. This board is suitable for a wide range of applications, including IoT, industrial, and consumer electronics.
Arm Cortex-M4 processor with FPU ( Floating Point Unit)
512 KB of Flash memory
128 KB of SRAM
16-bit OTP (One-Time Programmable) memory
3x 12-bit ADCs (Analog-to-Digital Converters)
2x 12-bit DACs (Digital-to-Analog Converters)
3x USARTs (Universal Synchronous Asynchronous Receiver Transmitters)
2x SPIs (Serial Peripheral Interfaces)
2x I2Cs (Inter-Integrated Circuits)
2x I2Ss (Inter-IC Sounds)
1x USB OTG FS (On-The-Go Full-Speed)
1x CAN (Controller Area Network)
1x SDMMC (Secure Digital/MultiMediaCard) interface
1x FSMC (Flexible Static Memory Controller)
### Example 1: Blinking an LED using GPIO
This example demonstrates how to use the STM32F446ZET6's GPIO (General-Purpose Input/Output) pins to blink an LED.
```c
#include <stm32f4xx_hal.h>
#define LED_PIN GPIO_PIN_5
#define LED_GPIO GPIOA
int main(void)
{
HAL_Init();
__HAL_RCC_GPIOA_CLK_ENABLE(); // Enable GPIOA clock
GPIO_InitTypeDef gpio_init_structure;
gpio_init_structure.Pin = LED_PIN;
gpio_init_structure.Mode = GPIO_MODE_OUTPUT;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LED_GPIO, &gpio_init_structure);
while (1)
{
HAL_GPIO_WritePin(LED_GPIO, LED_PIN, GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(LED_GPIO, LED_PIN, GPIO_PIN_RESET);
HAL_Delay(500);
}
}
```
### Example 2: Reading Analog Input using ADC
This example demonstrates how to use the STM32F446ZET6's ADC to read an analog input from a potentiometer.
```c
#include <stm32f4xx_hal.h>
#define ADC_PIN GPIO_PIN_0
#define ADC_GPIO GPIOA
#define ADC_CHANNEL 0
int main(void)
{
HAL_Init();
__HAL_RCC_ADC1_CLK_ENABLE(); // Enable ADC1 clock
__HAL_RCC_GPIOA_CLK_ENABLE(); // Enable GPIOA clock
GPIO_InitTypeDef gpio_init_structure;
gpio_init_structure.Pin = ADC_PIN;
gpio_init_structure.Mode = GPIO_MODE_ANALOG;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(ADC_GPIO, &gpio_init_structure);
ADC_HandleTypeDef hadc1;
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNCHRO BUS;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.ScanConvMode = DISABLE;
hadc1.Init.ContinuousConvMode = ENABLE;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.NbrOfDiscConversion = 0;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
HAL_ADC_Init(&hadc1);
while (1)
{
HAL_ADC_Start_IT(&hadc1);
while (HAL_ADC_PollForConversion(&hadc1, 10) != HAL_OK)
{
// Wait for conversion to complete
}
uint16_t adc_value = HAL_ADC_GetValue(&hadc1);
printf("ADC Value: %d
", adc_value);
HAL_Delay(100);
}
}
```
These examples demonstrate the basic usage of the STM32F446ZET6's GPIO and ADC peripherals. The code can be modified and extended to suit specific application requirements.