xuartps_low_echo_example.c File Reference

Overview

This file contains a design example using the hardware interface.

First, certain character sequence is output onto the terminal. Then any characters typed in are echoed back, for letters, cases are switched. An 'ESC' character terminates the execution of the example.

This example requires an external SchmartModule to be connected to the appropriate pins for the device through a daughter board. The test uses the default settings of the device: . baud rate of 9600 . 8 bits data . 1 stop bit . no parity

Note

The test hangs if communication channel from the user terminal to the device is broken.

MODIFICATION HISTORY:

Ver   Who    Date     Changes



1.00a drg/jz 01/13/10 First release
3.4   ms     01/23/17 Added xil_printf statement in main function to
                      ensure that "Successfully ran" and "Failed" strings
                      are available in all examples. This is a fix for
                      CR-965028.

Functions
int	UartPsEchoExample (u32 UartBaseAddress)
	This function does a minimal test on the UART device using the hardware interface. More...
int	main (void)
	Main function to call the Uart Echo example. More...

Function Documentation

int main

(

void

)

Main function to call the Uart Echo example.

Returns

XST_SUCCESS if successful, XST_FAILURE if unsuccessful

Note

None

References UartPsEchoExample().

int UartPsEchoExample

(

u32

UartBaseAddress

)

This function does a minimal test on the UART device using the hardware interface.

Parameters

UartBaseAddress

is the base address of the device

Returns

XST_SUCCESS if successful, XST_FAILURE if unsuccessful

Note

None.

References XUARTPS_CR_EN_DIS_MASK, XUARTPS_CR_OFFSET, XUARTPS_CR_RX_EN, XUARTPS_CR_TX_EN, XUARTPS_FIFO_OFFSET, XUartPs_IsReceiveData, XUartPs_IsTransmitFull, XUartPs_ReadReg, and XUartPs_WriteReg.

Referenced by main().