Example MPC5744P LINFlex UART echo SW polling

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* Detailed Description:

*

* Simple LINFlex UART mode transmit and receive without interrupts (polled UART)

* TXFIFO and RXFIFO macro is used to select between buffer and FIFO mode

*

* EVB connection:

*

*   Route LINFlexD_0 TXD/RXD (PB2/PB3) signals to the main board RS-232 transceiver

*   Daughtercard:

*   J17.11–12 ON  .. Connect LINFlexD_0 TXD (PB2) to main board.

*   J17.8–9 ON .. Connect LINFlexD_0 RXD (PB3) to main board.

*

*   Motherboard

*   J14 - SCI_RX ON

*   J13 - SCI_TX ON

*   J25 - SCI_PWR ON

*

* See results on PC terminal (19200, 8N1, None).

*

* ------------------------------------------------------------------------------

* Test HW:  MPC57xx

* Maskset:  1N65H

* Target :  RAM, internal_FLASH

* Fsys:     200 MHz PLL with 40 MHz crystal reference

* Terminal: 19200, 8N1, None

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