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LA-08 is an 8-channel logic analyzer with I2C, SPI, and UART protocol analyzers. The LA-08 software has simple and easy-to-use user interface. LA-08 has the fastest sample rate and an unique I2C Master and GPIO+PWM functions among similar products, making it the best tool that saves you a significant amount of developing and debugging time.
![]() LA-08 Software The software features simple and easy-to-use user interface and is available to download for free. Viewing and Manipulating the Waveform
I2C MASTER One unique feature of LA-08 is the I2C Master, which allows user to issue write and read commands to an I2C slave from LA-08's I2C Master console window. The LA can grab waveforms simultaneously. The following figure shows that four commands were issued to an OmniVision OV9655 camera module via its SCCB (I2c address 0x30) interface. (1)write 0, (2)read 32 bytes, (3)write 0x1C, and (4) read 2 bytes. The logic analyzer shows the waveform of the 4th command.
![]() 1-Wire Master 1-Wire is a device communications bus system that provides low-speed data, signaling, and power over a single signal. LA-08’s 1-Wire Master emulates a 1-Wire host (controller), with the following commands. (1)RESET, (2)SEARCH, (3)W <data byte(s)>, (4)R <n>, (5)Wb <data bit(s)>, and (6)Rb <n>. The SEARCH command finds out the registration number of each device on the bus using 1-Wire SEARCH ROM (0xF0) command(s). 1-Wire Master does not support OverDrive mode. The following figure depicts accesses to two Maxim DS18B20 digital thermometers connected on the 1-Wire bus. First a SEARCH command is issued to find the registration numbers of both device. A MATCH ROM (0x55) command is then issued to address the second thermometer, followed by a READ SCRATCHPAD (0xBE) command. Nine bytes are then read and the CRC is checked. GPIO+PWM With LA-08's GPIO you can drive any of the 8 pins high or low, and read from the pins at the same time. Toggle a pin is as simple as a mouse click. LA-08 can also generate PWM output for its 8 pins simultaneously. The PWM has a fixed base frequency of 1.25KHz (800uS period) and 16-step (0-16) modulated pulse width output. For both GPIO and PWM, the output high voltage is 3.3V; the output low voltage is 0V. ![]() DEMO: USB1.1 Waveform LA-08 has the highest sample rate (96 MSPS@2ch) among similar products. The high sample rate allows LA-08 to practically measure signals of frequencies up to 20 MHz; this is four times faster than similar products. The following figure depicts that LA-08 has acquired a waveform of a 12MHz USB 1.1 start-of frame (SOF) packet. ![]() PA-619 SMD TEST CLIP A LA-08 package comes with nine PA-619 high quality SMD test clips. The PA-619 test clip employs metal front tube, which ensures a firm hook-up and a long service life. The PA-619 test clip is suitable to be used on SMD and DIP ICs with lead pitch 50 mil (1.27mm) or higher. The PA-619 SMD test clips are made in Taiwan. ![]() ![]() LA-08 PACKAGE A LA-08 package contains (1) USB cable (length: 1 meter), (2) color-coded 9-pin test lead, (3) LA-08 base unit (CNC machined aluminum case of size W44xD55xH10.5 mm), (4) set of nine PA-619 test clips, and (5) hard paper case (W140xD150xD43 mm). ![]() SpecificationsSample Rate (highest)* 96 MSPS (2-ch) 60 MSPS (4-ch) 30 MSPS (8-ch) *depends on CPU speed and grade. Sample Rate (lowest) 100 KSPS Sample Memory Depth 100K~50M points per channel Trigger Condition Channels can independently set one of the follow 6 trigger conditions: No Trigger, Low, High, Rising Edge, Falling Edge, Any Edge Protocol Analyzer UART, I2C, SPI Electrical Specifications Input Voltage Max 16V Min -0.7V Fixed Threshold Voltage VIH 2.0V VIL 0.8V Input impedance 1M Ohm PC System Requirement Windows XP, Vista, 7 (32- or 64-bit) CPU 1.5GHz or above (Celeron is not recommended) Main memory 512MB or above USB 2.0 (High Speed) port WARRANTY One year limited warranty. Gallery
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