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Bean
BDLC
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BDLC serial communication
Parameters of the bean.
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Properties:
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Bean name - Bean name
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BDLC channel - Channel used for BDLC communication.
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Interrupt service/event - Interrupt properties.
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Interrupt - Interrupt name (for information only).
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Interrupt priority - Priority of interrupt
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Input data buffer size - The size in bytes of the input data buffer where received data are saved. This data can be obtained with the RecvBlock method. The shortest received message is 2 bytes long (1 byte data + 1 byte CRC). Number of transmitted bytes should not exceed 12 bytes in J1850 protocol.
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Input IFR buffer size - The size in bytes of the Input IFR buffer where received IFR (In-Frame Response) data are saved. This data can be obtained with the RecvIFR method. If there si no IFR used, set this property to 0. Number of transmitted bytes should not exceed 12 bytes in J1850 protocol.
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Settings - Settings
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Timing - Timing
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Expected transceiver delay - Expected transceiver delay from 9 to 24us (step 1 us).
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Stop in wait mode - This property determines if BDLC clock are running during the CPU wait mode.
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Nominal frequency - Nominal communication frequency of BDLC (for J1850 bus communication must be set to 1 MHz or 1,049 MHz]
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Type of nominal frequency - Nominal frequency is an integer value of the CPU Xtal frequency (1 MHz) or a binary value of the CPU Xtal frequency (1.048576 MHz). Set this property according to the value set in the Nominal frequency property.
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Frame settings - Frame settings
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IFR type - Select IFR type
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Normalisation bit format: - Symbol type of normalization bit (log. 0 or log. 1). It is recommended to use log. 0 for IFR with CRC and log. 1 for IFR without CRC for J1850 bus communication.
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Initialization - Initialization of the BDLC
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CPU clock/speed selection - Settings for the CPU speed modes: if the bean is supported or not in the particular speed mode
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Processor ExpertTM and Embedded BeansTM are registered trademarks of UNIS, Ltd.
©1997-2005, UNIS, Ltd.
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