Infratec™ 1241 Grain Analyzer
Service Manual 1001 5015 / Rev. 4 2:23
SW 7: Sample Transport Module (STM) microcontroller software
PIC microcontroller software to control the STM functions.
IF 1: Instrument Software/DSP gen II (10014320)
Interface between the Instrument software and the DSP software.
IF 2: DSP/Monochromator
I2C interface between the DSP and the monochromator microcontroller.
IF 3: DSP/Detector Module
I2C interface between the DSP and the detector module E2PROM, I2C expander and
temperature sensor.
IF 4: DSP/MU
I2C interface between the DSP and the MU microcontroller and temperature sensor.
IF 5: DSP/PSM
I2C interface between the DSP and the PSM I2C expander.
The signals used to adjust the contrast of the display, the display on/off function, to
set the display backlight on/off and the monochromator lamp in standby mode is sent
to the power supply module via the i2C bus interface. This connector is identical to
the connector interfacing the STM.
IF 6: DSP/TWM
I2C interface between the DSP and the TWM microcontroller via the MU board.
IF 7: DSP/Hopper Temp.
I2C interface between the DSP and the hopper temperature sensor via the MU board.
IF 8: DSP/EID
I2C interface between the DSP and the EID microcontroller via the MU board.
IF 9: DSP/STM
I2C interface between the DSP and the STM microcontroller via the MU board.
IF 10: DSP/Remote IO
I2C interface between the DSP and the IO expander circuit on the remote IO board
via the MU board.
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