LIN Master for Teensy 3.x, 4.x and LC

LIN Master for Teensy 3.x, 4.x and LC for all Serials incl. LPUART0 on Teensy 3.6

Testet on:

Legend:
x tested
- not tested
/ not available

Constructor

LIN lin(&Serial1, 19200);

Basic

LIN lin(&Serial Port, Baudrate);

Baudrates:
9600 low Baudrate
10400 low Baudrate US
19200 high Baudrate

You can also set the Breakbit value, 13 Bit is the Standard value, depending on the Teensy Model you can set it between 9 and 16

Example: Constructor

LIN lin(&Serial1, 19200, 13);

basicly the same above.

Funktions:

Examples from NCV7430: Lin.order, send something to the Lin-Slave

uint8_t control_buffer[] = {0xc0, 0x00, 0x00, 0x7f};

lin.order(SET_LED_CONTROL, control_buffer, 4);

Basic

lin.order(ID, array, array length);

lin.order calculates itself the CRC

Lin.response, receive something from the Lin-Slave

#define len 8
uint8_t lin_data[len];

lin.response(COMMAND_FRAME, lin_data, len);

Basic

lin.response(ID, array, array length);

lin.response returns the CRC from the frame, if the transmission is correct, and -1 if the expected CRC from the frame is not transmitted.

lin.order and lin.response calculates the CRC based on Lin 1.x standard checksum if needed you can change it to the enhanced checksum.

Checksum Typs:
Standard Checksum Lin 1.x
Enhanced Checksum Lin 2.x

lin.order(ID, array, array length, lin2x);

lin.response(ID, array, array length, lin2x);

eg.

lin.order(ID, array, array length);

lin.response(ID, array, array length);

calculates with the standard checksum it's basicly the same above.

lin.order(ID, array, array length, lin1x);

lin.response(ID, array, array length, lin1x);