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Technical University of Iasi - Fac. Automatic and Computers
Embedded Computer

Monday, 4 Feb., 119
Time 19: 0

Laboratory work no. 10

L10.1 Name:

SBC33 - active nodes with LIN protocol

L10.2 Overview, purpose.

The laboratory work aims to provide an introduction to the development of automotive embedded applications based on active LIN-based nodes with SBC33. At the end of the laboratory work we will have information about how to program the USART interface from the dsPIC33 structure for functioning in structures with LIN protocol.

L10.3 Resources:

- SBC33 development platform
- MPLAB
- PICKit 2

L10.4 Program example:

UART-LIN program sequence

L10.5 Experiment Run / Tracking Mode:

It analyzes how to make the serial interface for RS323 compatibility assurance:

Schem SBC33
The signals available on the P9 and P3l connectors are analyzed
It identifies in the prototype program how to allocate Tx, Rx signals to pins 17 and 18 respectively; .
Run the prototype program and examine the oscilloscope wave form at the Tx output.

SBC33 wiring

L10.6 Proposed Issues:

1. Make a program that sets the transmission speed to 1200 bps;
2. Make a program that will allow you to view the ID sequence;
3. Make a program sequence that will allow you to view the SYNC sequence.
4. Make a program sequence that will allow serialization of a byte to a port pin similar to the one made by the USART interface.
5. Identified in a suitable program the duration of the start signal.

L10.7 The experiment may be extended to:

- Development of active nodes with LIN protocol;
- Developing controllers networks for complex applications;
- Creating smart home products;
- Establishment of processing systems located in large spaces;

SBC33 planted

L10.8 Documentary references: