Download J-Flash Lite: A Simple and Fast Way to Program Flash Memory
If you are looking for a simple and fast way to program flash memory on your microcontroller via a J-Link debug probe, you might want to try J-Flash Lite. In this article, we will explain what J-Flash Lite is, why you might need it, how to download and install it on your PC, and how to use it to program flash memory on your target device.
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What is J-Flash Lite and why do you need it?
J-Flash Lite is a flash programming application that works with J-Link debug probes
J-Link debug probes are powerful tools that allow you to debug and program your microcontroller via various interfaces, such as JTAG, SWD, SPI, etc. They support most Cortex A-R-M, RX and Power PC devices/cores and offer high-speed communication, unlimited breakpoints, real-time tracing, and more.
J-Flash Lite is one of the applications that come with the J-Link Software and Documentation Pack. It enables you to program data images (bin, hex, mot, etc.) into the flash memory of your target device via a J-Link debug probe. It does not require any additional software or drivers.
J-Flash Lite has a reduced feature set compared to J-Flash, but it is free and easy to use
J-Flash Lite is a simplified version of J-Flash, which is a more advanced flash programming application that offers more features and options. For example, J-Flash supports external CFI NOR flash devices, custom init steps, automation via command line, project management, etc. However, J-Flash requires a J-Link PLUS or higher to operate.
J-Flash Lite does not have these features, but it is free and easy to use. It only requires a J-Link BASE or EDU (or higher) to operate. It has a simple user interface that consists of two components: a configuration dialog and a main window. You can select your target device, interface, speed and data file in the configuration dialog, and then click OK to open the main window. There you can erase all flash banks of the device or program the selected data file into the flash memory of the device.
J-Flash Lite supports most ARM, RX and Power PC devices and internal and external flash devices
J-Flash Lite supports most ARM/Cortex devices/cores as well as RX and Power PC devices/cores. It also supports internal flash devices as well as external SPI NOR-, NAND-, DataFlash-, EEPROM-, QSPI NOR-, etc. flash devices. However, for non-memory mapped flash devices (such as Serial NOR-, NAND-, DataFlash-, EEPROM), you need a customized flash loader that can be downloaded from the SEGGER website. You can also create your own flash loader using the J-Flash SPI CL tool.
How to download and install J-Flash Lite on your PC
J-Flash Lite is part of the J-Link Software and Documentation Pack, which is available for Windows, Linux and macOS
The J-Link Software and Documentation Pack is a collection of software, drivers and documentation that support the J-Link debug probes. It includes J-Flash Lite, J-Flash, J-Link Commander, J-Link GDB Server, J-Mem, J-Scope, J-Link Control Panel, and more. It also includes the J-Link User Manual, the J-Link Software Reference Manual, and the J-Flash User Guide.
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The pack is available for Windows (XP or later), Linux (x86/x64), and macOS (10.10 or later). You can download it from the SEGGER website or use the direct link below:
Windows
Linux
macOS
You can download the latest version of the pack from the SEGGER website or use the link below
The pack is updated regularly to support new devices and features. You can check the release notes to see what has changed in each version. You can also subscribe to the SEGGER newsletter to get notified of new releases and updates.
You can download the latest version of the pack from the SEGGER website or use the link below:
You can install the pack by following the instructions on the screen or refer to the user manual for more details
Once you have downloaded the pack, you can install it by following the instructions on the screen. The installation process is straightforward and should not take more than a few minutes. You can choose which components you want to install and where you want to install them.
If you need more details or encounter any problems during the installation, you can refer to the user manual for more information. You can also contact SEGGER support if you need further assistance.
How to use J-Flash Lite to program flash memory on your target device
Connect your J-Link debug probe to your PC and your target device via the appropriate interface
Before you can use J-Flash Lite, you need to connect your J-Link debug probe to your PC and your target device. You can use a USB cable to connect your J-Link probe to your PC. You can use a 20-pin 0.1" connector or an adapter board to connect your J-Link probe to your target device via the appropriate interface (JTAG, SWD, SPI, etc.). You can find more information about the connection options in the user manual.
Make sure that your target device is powered on and that your PC recognizes your J-Link probe. You can use the J-Link Commander tool to test the connection and get information about your probe and device.
Launch J-Flash Lite and select your target device, interface, speed and data file in the configuration dialog
Once you have connected your J-Link probe, you can launch J-Flash Lite from the Start menu or from the installation folder. You will see a configuration dialog where you can select your target device, interface, speed and data file.
You can use the drop-down menus or type in the fields to select your options. You can also click on Browse to locate your data file on your PC. The data file should be in a supported format (bin, hex, mot, etc.) and match the flash size of your target device.
If you are not sure about your options, you can click on Auto Detect to let J-Flash Lite detect them for you. However, this may not work for some devices or interfaces.
Click OK to open the main window and click Erase Chip to erase all flash banks of the device
After you click OK, you will see the main window of J-Flash Lite. There you can perform two main operations: erase chip and program device. You can also see the log window where you can monitor the progress and status of the operations.
Before you program your data file into the flash memory of your target device, you need to erase all flash banks of the device. This will delete any existing data and prepare the flash memory for programming. To do this, simply click on Erase Chip and wait for the operation to complete. You can see the elapsed time and the result in the log window.
Click Program Device to program the selected data file into the flash memory of the device
After you have erased all flash banks of the device, you can program your data file into the flash memory of the device. To do this, simply click on Program Device and wait for the operation to complete. You can see the elapsed time, the result and the verification in the log window.
If the programming is successful, you will see a green message saying "Programming done." and a blue message saying "Verification OK.". This means that your data file has been written into the flash memory of your target device and that it matches the original file.
You can monitor the progress and status of the operation in the log window or on the LED indicators of the J-Link probe
While J-Flash Lite is performing an operation, you can monitor the progress and status of it in the log window or on the LED indicators of your J-Link probe. The log window will show you messages such as "Connecting...", "Erasing...", "Programming...", "Verifying...", etc. The LED indicators will show you different colors depending on the state of your J-Link probe.
The LED indicators are located on the top side of your J-Link probe. They have different meanings depending on their color:
GreenThe J-Link probe is connected to your PC and ready to use
RedThe J-Link probe is busy performing an operation
YellowThe J-Link probe is in an error state or waiting for user input
OffThe J-Link probe is not connected to your PC or powered off
Conclusion and FAQs
In this article, we have shown you how to download J-Flash Lite, a simple and fast way to program flash memory on your microcontroller via a J-Link debug probe. We have explained what J-Flash Lite is, why you might need it, how to download and install it on your PC, and how to use it to program flash memory on your target device.
We hope that this article has been helpful and informative for you. If you have any questions or feedback, please feel free to contact us or leave a comment below. Here are some FAQs that might answer some of your queries:
Q: What are the system requirements for J-Flash Lite?
A: J-Flash Lite requires a PC running Windows (XP or later), Linux (x86/x64), or macOS (10.10 or later). It also requires a J-Link debug probe (BASE or EDU or higher) and a target device with flash memory.
Q: What are the advantages of using J-Flash Lite over other flash programming tools?
A: J-Flash Lite has several advantages over other flash programming tools, such as:
It is free and easy to use
It does not require any additional software or drivers
It supports most ARM/Cortex devices/cores as well as RX and Power PC devices/cores
It supports internal flash devices as well as external SPI NOR-, NAND-, DataFlash-, EEPROM-, QSPI NOR-, etc. flash devices
It works with J-Link debug probes, which are powerful and reliable tools for debugging and programming microcontrollers
Q: How can I create my own flash loader for non-memory mapped flash devices?
A: You can create your own flash loader for non-memory mapped flash devices using the J-Flash SPI CL tool, which is part of the J-Link Software and Documentation Pack. The tool allows you to create a custom flash loader based on a template and a configuration file. You can find more information about how to use the tool in the user manual.
Q: How can I automate J-Flash Lite operations via command line?
A: You can automate J-Flash Lite operations via command line using the J-Link Commander tool, which is part of the J-Link Software and Documentation Pack. The tool allows you to execute J-Link commands from a script file or from the command prompt. You can use the J-Flash Lite commands to erase chip, program device, verify device, etc. You can find more information about how to use the tool and the commands in the user manual.
Q: Where can I find more resources and support for J-Flash Lite?
A: You can find more resources and support for J-Flash Lite on the SEGGER website, such as:
The user manual, which provides detailed instructions and explanations for using J-Flash Lite and its features
The software reference manual, which provides technical information and specifications for J-Flash Lite and its components
The user guide, which provides step-by-step tutorials and examples for using J-Flash Lite and its functions
The download page, which provides the latest version of the J-Link Software and Documentation Pack and other related software
The support page, which provides contact information and FAQs for J-Flash Lite and other SEGGER products
You can also join the SEGGER forum, where you can ask questions, share feedback, and interact with other users and developers of J-Flash Lite and other SEGGER products. 44f88ac181