How to program:

• Micro Controller: STM32F407VET6 (32bit Arm Cortex M4 + FPU)
• Package Type: LQFP100
• Kernel: ARM Cortex-M4 with FPU
• Operating frequency: 168MHz
• Storage resources: 512K Byte Flash, 192KByte CCM SRAM

Interface Resources:

• SWD interface: JTAG / SWD/ JLink / STLink
• USB interface: Master USB / Slave USB
• USART1 interface: RS232 / RS485
• CAN: CAN1 / CAN2
• Temperature Sensor: DS18B20
• TF Card: Micro SD
• Ethernet: 1 X Ethernet

Other Device Description:

• Ethernet Chip: DP83848-LQFP48
• Power LED (PWR): x 1
• User LEDs : x 3 ( on pins PE13/PE14/PE15)
• Osc: 25M Crystal & 32.768KHz Crystal (RTC)
• User Buttons: x 3 Push Buttons
• RF Comms: NRF24L01 interface
• Power Input: DC +5V Input & USB

Programming IDEs:

• STM32 Cube - Download Here
• Arduino IDE - Download

Articles:

https://github.com/art103/JZ-F407VET6

Programming with Arduino IDE Using STLink V2:

1. Download and install Arduino IDE 2.2.1 on your PC (Latest Version).

2. Install support package:
File -> Preference => additional Board Manager URLs:
Enter the following url and click OK.
"https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json"

From Tools -> Manage Libraries
Search for STM32 and install the package:
"STM32 MCU based boards by STMicroelkectronics"

3. Select the Board:
Tools -> Bord -> STM32F4 Boards(Arduino_STM32) -> Generic STM32F407V mini series

Upload Method: STLink

A sample application with STM32F407VET6:

To use an STM32F407VET6 Cortex-M4 development board for industrial control applications, including interfacing with RS232, RS485, Dual CAN, Ethernet, and USB Host, you'll need to set up the board and write code to handle these peripherals. Here's a detailed guide to help you get started:

1. Hardware Connections

Pin Specification:

1. RS232:

   • TX: Transmit pin of the RS232 interface (connect to RX of the external device).
   • RX: Receive pin of the RS232 interface (connect to TX of the external device).
   • GND: Ground pin (connect to the ground of the external device).

2. RS485:

   • A: RS485 A pin (also known as the positive or non-inverted pin).
   • B: RS485 B pin (also known as the negative or inverted pin).
   • GND: Ground pin (connect to the ground of the external device).

3. CAN:

   • CAN_H: CAN High pin (connect to the CAN High pin of the external device).
   • CAN_L: CAN Low pin (connect to the CAN Low pin of the external device).
   • GND: Ground pin (connect to the ground of the external device).

4. Ethernet:

   • TX+ / TX-: Ethernet Transmit pins.
   • RX+ / RX-: Ethernet Receive pins.
   • GND: Ground pin.

5. USB Host:

   • VBUS: USB power supply pin.
   • D+: USB Data Positive pin.
   • D-: USB Data Negative pin.
   • GND: Ground pin.

2. Sample Code Using STM32 HAL Library:

First, make sure you have STM32CubeMX and STM32CubeIDE installed to configure peripherals and generate initialization code. Here's a basic example of how to set up and use RS232, RS485, CAN, and Ethernet with STM32 HAL.

#include "stm32f4xx_hal.h"
#include "stm32f4xx_hal.h"
#include "usb_host.h"

// UART handles for RS232 and RS485
UART_HandleTypeDef huart1; // RS232
UART_HandleTypeDef huart2; // RS485

// CAN handles
CAN_HandleTypeDef hcan1;
CAN_HandleTypeDef hcan2;

// Ethernet handle
ETH_HandleTypeDef heth;

// USB handle
USBH_HandleTypeDef hUsbHost;

// Function prototypes
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_USART2_UART_Init(void);
static void MX_CAN1_Init(void);
static void MX_CAN2_Init(void);
static void MX_ETH_Init(void);
static void MX_USB_HOST_Init(void);

int main(void)
{
  // Initialize the HAL Library
  HAL_Init();

  // Configure the system clock
  SystemClock_Config();

  // Initialize all configured peripherals
  MX_GPIO_Init();
  MX_USART1_UART_Init(); // RS232
  MX_USART2_UART_Init(); // RS485
  MX_CAN1_Init();
  MX_CAN2_Init();
  MX_ETH_Init();
  MX_USB_HOST_Init();

  // Example data
  uint8_t rs232_msg[] = "Hello via RS232!";
  uint8_t rs485_msg[] = "Hello via RS485!";
  CAN_TxHeaderTypeDef txHeader;
  uint8_t can_data[8] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
  uint32_t txMailbox;

  // CAN1 configuration
  txHeader.DLC = 8;
  txHeader.IDE = CAN_ID_STD;
  txHeader.RTR = CAN_RTR_DATA;
  txHeader.StdId = 0x123;
  
  // CAN2 configuration
  CAN_TxHeaderTypeDef txHeader2;
  uint8_t can_data2[8] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88};
  uint32_t txMailbox2;
  
  txHeader2.DLC = 8;
  txHeader2.IDE = CAN_ID_STD;
  txHeader2.RTR = CAN_RTR_DATA;
  txHeader2.StdId = 0x456;

  // Main loop
  while (1)
  {
    // Send a message via RS232
    HAL_UART_Transmit(&huart1, rs232_msg, sizeof(rs232_msg), HAL_MAX_DELAY);
    
    // Send a message via RS485
    HAL_UART_Transmit(&huart2, rs485_msg, sizeof(rs485_msg), HAL_MAX_DELAY);

    // Send a CAN message via CAN1
    HAL_CAN_AddTxMessage(&hcan1, &txHeader, can_data, &txMailbox);

    // Send a CAN message via CAN2
    HAL_CAN_AddTxMessage(&hcan2, &txHeader2, can_data2, &txMailbox2);
    
    // Handle Ethernet and USB Host
    MX_ETH_Init(); // This should be handled in the loop for network processing
    USBH_Process(&hUsbHost); // Process USB Host events

    // Add a delay
    HAL_Delay(1000);
  }
}

// Peripheral initialization functions

static void MX_USART1_UART_Init(void)
{
  huart1.Instance = USART1;
  huart1.Init.BaudRate = 9600;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  HAL_UART_Init(&huart1);
}

static void MX_USART2_UART_Init(void)
{
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 9600;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  HAL_UART_Init(&huart2);
}

static void MX_CAN1_Init(void)
{
  hcan1.Instance = CAN1;
  hcan1.Init.Prescaler = 16;
  hcan1.Init.Mode = CAN_MODE_NORMAL;
  hcan1.Init.SJW = CAN_SJW_1TQ;
  hcan1.Init.BS1 = CAN_BS1_6TQ;
  hcan1.Init.BS2 = CAN_BS2_5TQ;
  hcan1.Init.TTCM = DISABLE;
  hcan1.Init.ABOM = DISABLE;
  hcan1.Init.ABS = DISABLE;
  hcan1.Init.RFLM = DISABLE;
  hcan1.Init.TXFP = DISABLE;
  HAL_CAN_Init(&hcan1);
}

static void MX_CAN2_Init(void)
{
  hcan2.Instance = CAN2;
  hcan2.Init.Prescaler = 16;
  hcan2.Init.Mode = CAN_MODE_NORMAL;
  hcan2.Init.SJW = CAN_SJW_1TQ;
  hcan2.Init.BS1 = CAN_BS1_6TQ;
  hcan2.Init.BS2 = CAN_BS2_5TQ;
  hcan2.Init.TTCM = DISABLE;
  hcan2.Init.ABOM = DISABLE;
  hcan2.Init.ABS = DISABLE;
  hcan2.Init.RFLM = DISABLE;
  hcan2.Init.TXFP = DISABLE;
  HAL_CAN_Init(&hcan2);
}

static void MX_ETH_Init(void)
{
  heth.Instance = ETH;
  heth.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE;
  heth.Init.PhyAddress = 0;
  heth.Init.MACAddr = (uint8_t*)"\x00\x11\x22\x33\x44\x55";
  heth.Init.MediaInterface = ETH_MEDIA_INTERFACE_MII;
  heth.Init.RxMode = ETH_RXINTERRUPT_MODE;
  heth.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE;
  heth.Init.PTPMode = ETH_PTP_DISABLE;
  HAL_ETH_Init(&heth);
}

static void MX_USB_HOST_Init(void)
{
  USBH_Init(&hUsbHost, USBH_UserProcess, 0);
  USBH_RegisterClass(&hUsbHost, USBH_MSC_CLASS);
  USBH_Start(&hUsbHost);
}

void SystemClock_Config(void)
{
  RCC_ClkInitTypeDef clkinitstruct = {0};
  RCC_OscInitTypeDef oscinitstruct = {0};

  // Configure the main internal regulator output voltage
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  // Initialize the CPU, AHB and APB busses clocks
  oscinitstruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  oscinitstruct.HSEState = RCC_HSE_ON;
  oscinitstruct.HSIState = RCC_HSI_OFF;
  oscinitstruct.PLL.PLLState = RCC_PLL_ON;
  oscinitstruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  oscinitstruct.PLL.PLLM = 8;
  oscinitstruct.PLL.PLLN = 336;
  oscinitstruct.PLL.PLLP = RCC_PLLP_DIV4;
  oscinitstruct.PLL.PLLQ = 7;
  HAL_RCC_OscConfig(&oscinitstruct);

  // Initialize the CPU, AHB and APB busses clocks
  clkinitstruct.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
  clkinitstruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  clkinitstruct.AHBCLKDivider = RCC_HCLK_DIV1;
  clkinitstruct.APB1CLKDivider = RCC_APB1_DIV4;
  clkinitstruct.APB2CLKDivider = RCC_APB2_DIV2;
  HAL_RCC_ClockConfig(&clkinitstruct, FLASH_LATENCY_5);
}

static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  // Enable GPIO Ports Clock
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOE_CLK_ENABLE();

  // Configure GPIO pin Output Level
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);

  // Configure GPIO pin : PA5
  GPIO_InitStruct.Pin = GPIO_PIN_5;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id)
{
  // USB Host user process callback
  switch(id)
  {
    case HOST_USER_SELECT_CONFIGURATION:
      break;
    case HOST_USER_DISCONNECTION:
      break;
    case HOST_USER_CLASS_ACTIVE:
      break;
    case HOST_USER_CONNECTION:
      break;
    default:
      break;
  }
}

3. Explanation of Code

1. Initialization Functions:

   • MX_USART1_UART_Init(): Configures UART1 for RS232 communication.
   • MX_USART2_UART_Init(): Configures UART2 for RS485 communication.
   • MX_CAN1_Init() and MX_CAN2_Init(): Initialize CAN1 and CAN2 interfaces for CAN communication.
   • MX_ETH_Init(): Placeholder for Ethernet initialization.
   • MX_USB_HOST_Init(): Placeholder for USB Host initialization.
   • MX_GPIO_Init(): Initializes GPIO pins if necessary.

2. Main Loop:

   • RS232: Sends a message via UART1 (RS232).
   • RS485: Sends a message via UART2 (RS485).
   • CAN1: Sends a CAN message using CAN1.
   • CAN2: Sends a CAN message using CAN2.
   • Ethernet and USB: Placeholders where you can add code for Ethernet and USB Host operations.

3. Delays and Communication:

   • HAL_Delay(1000);: Adds a 1-second delay between iterations of the main loop.

4. SystemClock_Config Function:

   • Configures the system clock to use the PLL with HSE as the source.
   • Sets the clock for the CPU, AHB, and APB busses.
   • Adjust clock settings based on your specific application requirements.

5. MX_GPIO_Init Function:

   • Initializes GPIO ports and sets up specific pins as output.
   • In this example, only one pin (PA5) is configured as an output. Add additional pin configurations based on your needs.

6. MX_ETH_Init Function:

   • Configures the Ethernet peripheral.
   • Sets auto-negotiation, MAC address, and other parameters.

7. MX_USB_HOST_Init Function:

   • Initializes the USB Host library and starts USB Host operations.
   • Registers the MSC class for handling USB Mass Storage devices.

8. USB Host Callback:

   • USBH_UserProcess handles USB Host events. You can add custom logic based on USB events (e.g., device connection/disconnection).

9. Main Loop:

   • Regularly sends data via UART, CAN, and handles Ethernet and USB operations.

Make sure to adapt the configuration values and initialization code to match your specific hardware and requirements. Also, ensure that the STM32CubeMX tool is correctly configured for your project and that you have generated the necessary initialization code.

4. Development Environment

• STM32CubeMX: Use this tool to configure peripherals and generate initialization code.
• STM32CubeIDE: Integrated development environment for writing, compiling, and debugging code.

5. Additional Notes

• STM32CubeMX: Use STM32CubeMX to configure peripherals and generate initialization code. This tool will also help you configure the clock, GPIO pins, and peripheral settings.
• Power Supply: Ensure that your development board is powered correctly, as peripherals like CAN and Ethernet might require stable power sources.
• Debugging: Use STM32CubeIDE's debugging features to monitor and troubleshoot your code and hardware.