LIN mode functions.
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LIN mode functions.
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##### LIN mode functions #####
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[..] This subsection provides a set of functions allowing to manage the USART
LIN Mode communication.
[..] In LIN mode, 8-bit data format with 1 stop bit is required in accordance
with the LIN standard.
[..] Only this LIN Feature is supported by the USART IP:
(+) LIN Master Synchronous Break send capability and LIN slave break
detection capability : 13-bit break generation and 10/11 bit break
detection.
[..] USART LIN Master transmitter communication is possible through the
following procedure:
(#) Program the Baud rate, Word length = 8bits, Stop bits = 1bit, Parity,
Mode transmitter or Mode receiver and hardware flow control values
using the USART_Init() function.
(#) Enable the LIN mode using the USART_LINCmd() function.
(#) Enable the USART using the USART_Cmd() function.
(#) Send the break character using USART_SendBreak() function.
[..] USART LIN Master receiver communication is possible through the
following procedure:
(#) Program the Baud rate, Word length = 8bits, Stop bits = 1bit, Parity,
Mode transmitter or Mode receiver and hardware flow control values
using the USART_Init() function.
(#) Configures the break detection length
using the USART_LINBreakDetectLengthConfig() function.
(#) Enable the LIN mode using the USART_LINCmd() function.
-@- In LIN mode, the following bits must be kept cleared:
(+@) CLKEN in the USART_CR2 register.
(+@) STOP[1:0], SCEN, HDSEL and IREN in the USART_CR3 register.
(#) Enable the USART using the USART_Cmd() function.
void USART_LINBreakDetectLengthConfig |
( |
USART_TypeDef * |
USARTx, |
|
|
uint32_t |
USART_LINBreakDetectLength |
|
) |
| |
Sets the USART LIN Break detection length.
- Parameters
-
USARTx,: | where x can be 1 or 2 or 3 to select the USART peripheral. |
USART_LINBreakDetectLength,: | specifies the LIN break detection length. This parameter can be one of the following values:
- USART_LINBreakDetectLength_10b: 10-bit break detection
- USART_LINBreakDetectLength_11b: 11-bit break detection
|
- Return values
-
void USART_LINCmd |
( |
USART_TypeDef * |
USARTx, |
|
|
FunctionalState |
NewState |
|
) |
| |
Enables or disables the USART's LIN mode.
- Parameters
-
USARTx,: | where x can be 1 or 2 or 3 to select the USART peripheral. |
NewState,: | new state of the USART LIN mode. This parameter can be: ENABLE or DISABLE. |
- Return values
-