Drivers System
Drivers System Update
Drivers System32
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SEGGER, the experts for embedded solutions, provides a number of free tools and utilities that can be used free of charge for personal, non-commercial use. All these utilities have in common that they are based on software developed by SEGGER. As such they are a demonstrator platform of the software and at the same time a helpful utility of the task at hand.

Drivers System

1.FIND Discovery - The FIND response collector
2.Composite Device Driver Fixer
3.emSecure Sign & Verify
4.Bin2C - Binary to C Converter
5.emVNC - VNC Client
6.MD5Calc - Hash Calculator
7.pwGen - Password Generator

Use the DISPLAY system command to display information about the operating system, the jobs and application programs that are running, the processor, devices that are online and offline, central storage, workload management service policy status, and the time of day. Default: SEGGERSYSVIEWRecordExitISRToScheduler. The name of a function to be called to record finish of interrupt when it’s caused by a context switch. An example of “platformio.ini” (Project Configuration File) with modified heap settings and enabled SystemView feature.

FIND Discovery - The FIND response collector

FIND Discovery is the simplest way to display collected FIND information. It sends queries and lists all valid responses of the devices in the local network. FIND Discovery is available to download for free for Microsoft Windows, Linux and macOS.

Composite devices (devices with multiple USB interfaces, e.g. CDC + BULK) sometimes exhibit issues on Windows 7 when connected to a USB 3.0 controller which is using third party drivers. Often only one of these interfaces will be made available through the third party driver.
This tool allows to correct the registry entry for your device so that it is recognized as a composite device instead of a single interface device.
To use it simply start the tool, enter the vendor and product IDs of your device and click 'Fix Driver'.

emSecure Sign & Verify

emSecure Sign & Verify is a Windows application for the protection of personal files. It makes signing and verifying digital documents easy by simply using Drag and Drop. The utility is provided free of charge for personal use.
Sign & Verify makes any kind of data transmission more secure, be it for commercial or private use. A pair of public and private keys is used to create and verify the digital signatures.

Download Sign&Verify based on emSecure for Windows

Bin2C is a command-line utility for Windows which takes a binary (or HTML or text) file as input and converts it to a C-array that can be directly included into a target application code. The utility does not require additional software to be installed (runs stand-alone). Typical usage applications are data that need to be included in a C-program,
such as FPGA configuration data, bitmaps in portable format (such as GIF, PNG), web pages that need to be delivered by a built-in web server and more.

emVNC - VNC Client

emVNC is a universal VNC Client, available for Windows, macOS and Linux. With this tool, users can connect to any VNC server. Any device with a VNC server can be connected to any other computer in the network this way, using IP access. The device can then, for example, be remote controlled via VNC.

MD5 Calc is a command-line utility for Windows that generates a 32-digit MD5 hash for a given file. The utility does not require additional software to be installed (runs stand-alone).

pwGen - Password Generator

pwGen is a password generator for Windows. It generates a pseudo-random 8-character password and copies it with a single click into the clipboard. This tool does not require installation and provides passwords from a trustworthy source.

Overview¶

IDF provides useful feature for program behavior analysis: application level tracing. It is implemented in the corresponding library and can be enabled in menuconfig. This feature allows to transfer arbitrary data between host and ESP32-S2 via JTAG interface with small overhead on program execution.

Developers can use this library to send application specific state of execution to the host and receive commands or other type of info in the opposite direction at runtime. The main use cases of this library are:

Collecting application specific data, see Application Specific Tracing
Lightweight logging to the host, see Logging to Host
System behavior analysis, see System Behavior Analysis with SEGGER SystemView
Source code coverage, see Gcov (Source Code Coverage)

Tracing components when working over JTAG interface are shown in the figure below.

Modes of Operation¶

The library supports two modes of operation:

Post-mortem mode. This is the default mode. The mode does not need interaction with the host side. In this mode tracing module does not check whether host has read all the data from HW UP BUFFER buffer and overwrites old data with the new ones. This mode is useful when only the latest trace data are interesting to the user, e.g. for analyzing program’s behavior just before the crash. Host can read the data later on upon user request, e.g. via special OpenOCD command in case of working via JTAG interface.

Streaming mode. Tracing module enters this mode when host connects to ESP32-S2. In this mode before writing new data to HW UP BUFFER tracing module checks that there is enough space in it and if necessary waits for the host to read data and free enough memory. Maximum waiting time is controlled via timeout values passed by users to corresponding API routines. So when application tries to write data to trace buffer using finite value of the maximum waiting time it is possible situation that this data will be dropped. Especially this is true for tracing from time critical code (ISRs, OS scheduler code etc.) when infinite timeouts can lead to system malfunction. In order to avoid loss of such critical data developers can enable additional data buffering via menuconfig option CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX. This macro specifies the size of data which can be buffered in above conditions. The option can also help to overcome situation when data transfer to the host is temporarily slowed down, e.g due to USB bus congestions etc. But it will not help when average bitrate of trace data stream exceeds HW interface capabilities.

Configuration Options and Dependencies¶

Using of this feature depends on two components:

Host side: Application tracing is done over JTAG, so it needs OpenOCD to be set up and running on host machine. For instructions on how to set it up, please see JTAG Debugging for details.
Target side: Application tracing functionality can be enabled in menuconfig. Component config > Application Level Tracing menu allows selecting destination for the trace data (HW interface for transport). Choosing any of the destinations automatically enables CONFIG_APPTRACE_ENABLE option.

Note

In order to achieve higher data rates and minimize number of dropped packets it is recommended to optimize setting of JTAG clock frequency, so it is at maximum and still provides stable operation of JTAG, see Optimize JTAG speed.

There are two additional menuconfig options not mentioned above:

Threshold for flushing last trace data to host on panic (CONFIG_APPTRACE_POSTMORTEM_FLUSH_THRESH). This option is necessary due to the nature of working over JTAG. In that mode trace data are exposed to the host in 16 KB blocks. In post-mortem mode when one block is filled it is exposed to the host and the previous one becomes unavailable. In other words trace data are overwritten in 16 KB granularity. On panic the latest data from the current input block are exposed to host and host can read them for post-analysis. System panic may occur when very small amount of data are not exposed to the host yet. In this case the previous 16 KB of collected data will be lost and host will see the latest, but very small piece of the trace. It can be insufficient to diagnose the problem. This menuconfig option allows avoi

Drivers Sysview