(Solved): There are 2 32F429IDISCOVERY KIT with 2 STM32F429ZIT6 microcontrollers. on the first boardUsing the ...

Expert Answer

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Answer

To accomplish the desired functionality, you need to establish communication between the two STM32F429IDISCOVERY boards using UART.

Here's the C++ code fragments for both boards:

**First Board (Transmitter):**

```cpp
#include "  "

// Define the UART pins
#define TX_PIN GPIO_Pin_5
#define RX_PIN GPIO_Pin_3

// Define the button pin
#define BUTTON_PIN GPIO_Pin_0
#define BUTTON_PORT GPIOA

// Function to initialize UART
void UART_Init()
{
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);

GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;

// Configure USART Tx and Rx as alternate function push-pull
GPIO_InitStructure.GPIO_Pin = TX_PIN | RX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;