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TMS374 ECU DECODER
Connection diagram: + :12v DC - : GND S :signal wire
Introduction
This Tool is a frequency sweeper with 5V square wave output (Duty cycle 50%, effective frequency range from over 10kHz (max 50kHz) to 50Hz) .This tool can be also considered as a MCU version of the software TMS-374 Decoder ECU. The only difference between the two tools is that the MCU version works without a PC. A small MCU is used to generate the pulses instead of the PC RS232 Tx line.
Manual
After powering the device on - the LED should blink twice. The sweeping process starts as power is supplied to the device. LED ON - means there are pulses on the output. After reaching the lowest frequency the LED goes off and the mcu stops the generation.
TMS374 Datasheet
