For basic voltage monitoring within the device's logic-level tolerances.
Some firmware updates may require you to recalibrate the input thresholds.
: Includes tools for controlling WS2812 LED strips, MIDI devices, and I2C scanning.
The device uses an STM32F103VC processor. This chip handles the user interface, screen rendering, file saving, and overall system management.
Before modifying the software layer, it helps to understand the hardware footprint that the custom firmware interacts with: Specification STM32F103VCT6 (ARM Cortex-M3 running at 60MHz) Co-Processor Anlogic AG1K FPGA (Handles high-speed digital sampling) Display 2.8-inch TFT LCD (320x240 resolution, ILI9341 driver) Storage 8 MB internal SPI Flash memory Power 500 mAh internal rechargeable Lithium battery via Micro-USB I/O Configuration 4 digital input channels, 4 digital output/GPIO channels How Custom LA104 Firmware Works la104 firmware work
If you are installing a custom operating system (like the gabonator version), you must also copy the app folder:
: After updating the system, you typically copy application files ( , etc.) to the newly formatted FAT partition on the device. Known Limitations
The two main firmware forks serve different needs:
: Remember that the FPGA bitstream is proprietary, so some hardware-level signal bugs are harder for the community to fix than the ARM-based UI. For basic voltage monitoring within the device's logic-level
After successful build, the firmware image ( system.hex ) is in the build directory.
To strip away the limitations and write optimized code that utilizes the DMA (Direct Memory Access) and FPGA pipelines more efficiently.
Before altering the firmware, it helps to understand what the underlying hardware can support. The LA104 is built on an ARM Cortex-M4 microcontroller (typically an STM32 series) and features: 4 digital channels. Max Sampling Rate: Up to 100Msa/s (Megasamples per second). Screen: 2.8-inch color TFT display (320x240 resolution).
The LA104 is built on an processor and an AG1K FPGA , making it essentially an open-source development board. By modifying its firmware, you can transform it from a simple 4-channel analyzer into a multi-tool capable of: The device uses an STM32F103VC processor
, custom community-developed operating systems elevate it into a multi-functional "hacker's multitool". Core Factory Firmware Features
Once the file copy finishes, the system will automatically process the file. The file extension of the file you just copied will change. If it changes to , the installation was successful.
The official firmware provided by MINIWARE is the baseline. Version is the most commonly referenced official release and includes source code. While functional, it has limited features and some stability issues. However, its open-source nature is the key that unlocked the device's full potential, allowing the community to build upon it and create far more powerful alternatives. The official source code release represents a pivotal moment for LA104, enabling the vibrant ecosystem of custom firmware and applications that exists today.