NanoCAD is Free CAD program like AutoCAD

NanoCAD is free for personal cad program. Usage is same as AutoCAD.

go to nanocad.com, download personal version. 

https://nanocad.com/personal/

HardFault (error ) on STM32 USB Host + FreeRTOS

I have Hard fault when USB device Attached to my STM32F407.

STM32CubeMX makes rtos STACK SIZE default to 128 bytes.

It is too small.

You can increase stack size.

Filename : USB_HOST/Target/usbh_config.h

Original (ERROR case)

#if (USBH_USE_OS == 1)

#include "cmsis_os.h"

#define USBH_PROCESS_PRIO osPriorityNormal

#define USBH_PROCESS_STACK_SIZE ((uint16_t)128)

#endif /* (USBH_USE_OS == 1) */

Fix (ERROR case)

#if (USBH_USE_OS == 1)

#include "cmsis_os.h"

#define USBH_PROCESS_PRIO osPriorityNormal

#define USBH_PROCESS_STACK_SIZE ((uint16_t)2048)

#endif /* (USBH_USE_OS == 1) */

 

Kirisun DP405 DMR Radio Walkie walkie programming cable pinout

Kirisun DP-405

Kirisun DP405

Programming cable pinout:

I tested cable with FTDI usb serial TTL module.

It works.

VirtualBox vboxuser password is "changeme"

 Oracle VirtualBox windows 10 default password is "changeme"

simplify C# null check . if(~ !=null) { } is ~? syntax.

if( X != null)

{

     X.doSomething();

}

make simple like this

X?.doSomething();

ESP32 Clear(disable) esp_deep_sleep_enable_gpio_wakeup

in ESP32 C3

esp32 c3 have no disable gpio wakeup function. so, gpio wakeup masks adds only. 

PROBLEM:

step 1: 

    esp_deep_sleep_enable_gpio_wakeup( 1<<GPIO_NUM_2 , 0 );

    esp_deep_sleep_enable_gpio_wakeup( 1<<GPIO_NUM_5 , 0 );

    esp_deep_sleep_start();

step 2: 

    wakeup 

step 3:

    esp_deep_sleep_enable_gpio_wakeup( 1<<GPIO_NUM_5 , 0 );

    esp_deep_sleep_start();

step 4 (problem):

    ESP32 can wakeup by GPIO_NUM_2 !!!!

    

Reason: ESP32 SDK 

esp_deep_sleep_enable_gpio_wakeup does not clear for other pins.

You can modify SDK source code.

sleep_modes.c   esp_deep_sleep_enable_gpio_wakeup function

esp_err_t esp_deep_sleep_enable_gpio_wakeup(uint64_t gpio_pin_mask, esp_deepsleep_gpio_wake_up_mode_t mode)

{

    if (mode > ESP_GPIO_WAKEUP_GPIO_HIGH) {

        ESP_LOGE(TAG, "invalid mode");

        return ESP_ERR_INVALID_ARG;

    }

    gpio_int_type_t intr_type = ((mode == ESP_GPIO_WAKEUP_GPIO_LOW) ? GPIO_INTR_LOW_LEVEL : GPIO_INTR_HIGH_LEVEL);

    esp_err_t err = ESP_OK;

   

    /*s_config.gpio_wakeup_mask = 0;

    for (gpio_num_t gpio_idx = GPIO_NUM_0; gpio_idx < GPIO_NUM_MAX; gpio_idx++, gpio_pin_mask >>= 1)

    {

       gpio_deep_sleep_wakeup_disable(gpio_idx);

   }*/

   

   

    for (gpio_num_t gpio_idx = GPIO_NUM_0; gpio_idx < 6; gpio_idx++, gpio_pin_mask >>= 1) {

        if ((gpio_pin_mask & 1) == 0) {

           s_config.gpio_wakeup_mask &= ~BIT(gpio_idx);

           gpio_deep_sleep_wakeup_disable(gpio_idx);

           

            continue;

        }

        if (!esp_sleep_is_valid_wakeup_gpio(gpio_idx)) {

            ESP_LOGE(TAG, "invalid mask, please ensure gpio number is no more than 5");

            return ESP_ERR_INVALID_ARG;

        }

        err = gpio_deep_sleep_wakeup_enable(gpio_idx, intr_type);

        s_config.gpio_wakeup_mask |= BIT(gpio_idx);

        if (mode == ESP_GPIO_WAKEUP_GPIO_HIGH) {

            s_config.gpio_trigger_mode |= (mode << gpio_idx);

        } else {

            s_config.gpio_trigger_mode &= ~(mode << gpio_idx);

        }

    }

    s_config.wakeup_triggers |= RTC_GPIO_TRIG_EN;

   

    rtc_hal_gpio_clear_wakeup_status();

    return err;

}

after modify , If you want use multiple pins for wakeup source, 

call esp_deep_sleep_enable_gpio_wakeup with pin bitmask. 

example: esp_deep_sleep_enable_gpio_wakeup(  1<<GPIO_NUM_2 |  1<<GPIO_NUM_5 );

In my case , sleep_modes.c located on C:\Espressif\frameworks\esp-idf-5.0\components\esp_hw_support

Get serial pin event and status(level) c#(ring, cts, dsr, rlsd)

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.IO.Ports;

using System.Reflection;

using System.Runtime.InteropServices;

using Microsoft.Win32.SafeHandles;

namespace SerialEventMonitor

{

    class Program

    {

        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]

        static extern Boolean GetCommModemStatus(SafeFileHandle hFile, ref UInt32 Status);

        const UInt32 MS_CTS_ON = 0x0010;

        const UInt32 MS_DSR_ON = 0x0020;

        const UInt32 MS_RING_ON = 0x0040;

        const UInt32 MS_RLSD_ON = 0x0080;

        static void Main(string[] args)

        {

            Console.WriteLine( string.Join( ",",SerialPort.GetPortNames()));

            

            string com_port_name = Console.ReadLine();

            SerialPort port = new SerialPort(com_port_name.Trim(), 9600, Parity.None, 8, StopBits.One);

            port.PinChanged += PinChanged;

            

            port.Open();

            DateTime dt_Start = DateTime.MinValue;            

            while(true)

            {

                if( port.ReadExisting() == "q")

                    break;

                System.Threading.Thread.Sleep(1000);

            }

            port.Close();

            port.Dispose();

        }

        private static void PinChanged(object sender, SerialPinChangedEventArgs e)

        {

            SerialPort port = sender as SerialPort;

            Console.WriteLine( e.EventType.ToString());

            ShowPinStates(port);

        }

        static private void ShowPinStates(System.IO.Ports.SerialPort serialPort)

        {

            UInt32 Status = 0;

            Boolean CTS = false;

            Boolean DSR = false;

            Boolean DCD = false;

            Boolean RI = false;

            if (serialPort == null) return;

            if (serialPort.IsOpen)

            {

                object baseStream = serialPort.BaseStream;

                Type baseStreamType = baseStream.GetType();

                // Get the Win32 file handle for the port

                SafeFileHandle portFileHandle = (SafeFileHandle)baseStreamType.GetField("_handle", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(baseStream);

                if (GetCommModemStatus(portFileHandle, ref Status))

                {

                    CTS = ((Status & MS_CTS_ON) == MS_CTS_ON);

                    DSR = ((Status & MS_DSR_ON) == MS_DSR_ON);

                    DCD = ((Status & MS_RLSD_ON) == MS_RLSD_ON);

                    RI = ((Status & MS_RING_ON) == MS_RING_ON);

                    Console.WriteLine(RI);

                }

            }

        }

    }

}