The 24MHz 8-Channel USB Logic Analyzer is a portable, low-cost debugging tool widely used for capturing and analyzing digital signals in ARM, FPGA, and microcontroller projects. It supports a maximum sampling rate of 24 million samples per second (24MS/s) across 8 simultaneous channels, making it ideal for troubleshooting common communication protocols.
Key Specifications
Channels: 8 independent digital input channels.
Sampling Rate: Configurable from 25kHz up to 24MHz.
Voltage Range: Supports 0V to 5.5V; typically compatible with 3.3V and 5V logic levels.
Logic Thresholds: Signals above ~1.5V–2.0V are considered “high,” while those below ~0.8V are “low”.
Input Impedance: 100kΩ with a 5pF capacitance.
Connectivity: Powered and interfaced via a USB cable (Mini-B or Type-C, depending on the model).
Software Compatibility
This hardware is widely compatible with popular analysis suites, often appearing as a generic “Saleae Logic” device:
PulseView (sigrok): Open-source, cross-platform software that supports Windows, macOS, and Linux.
Saleae Logic: Many of these units are designed to work with older versions of the Saleae Logic software (specifically version 1.x).
Typical Applications
It is primarily used for protocol decoding and timing analysis:
Serial Protocols: I2C, SPI, UART, CAN, LIN, and 1-Wire.
Hardware Debugging: Monitoring GPIO states, PWM signals, and verifying clock timings.
System Integration: Verifying firmware behavior against actual hardware output.
Usage Tips
Grounding: Always ensure the analyzer’s ground is connected to the target system’s ground to prevent signal distortion.
Sampling Rule: For accurate data, your sampling rate should be at least 4-10 times faster than the signal you are measuring (e.g., sample at 24MHz to reliably capture a 2-4MHz signal).
LED Indicators: Most models include a small LED to indicate the logical level of Channel 0 (CH0) or general power status.
Are you looking for instructions on how to set up the drivers or connect it to a specific ARM/FPGA board?
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