uartns550
Xilinx Vitis Drivers API Documentation
xuartns550_low_level_example.c File Reference

Overview

This file contains a design example using the low-level driver functions and macros of the UART NS550 driver.

Note
None.

MODIFICATION HISTORY:

Ver   Who  Date     Changes


1.00b rpm 04/25/02 First release 1.00b sv 06/08/05 Minor changes to comply to Doxygen and coding guidelines 2.00a ktn 10/20/09 Updated to use HAL processor APIs, minor modifications as per coding guidelines and macros have been renamed to remove _m from the name. 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 XUartNs550_LowLevelExample (u32 UartBaseAddress)
 This function does a minimal test on the UART device using the low-level driver macros and functions. More...
 
int main (void)
 Main function to call the example. More...
 

Function Documentation

int main ( void  )

Main function to call the example.

Returns
XST_SUCCESS if successful, XST_FAILURE if unsuccessful.
Note
None.

References XUartNs550_LowLevelExample().

int XUartNs550_LowLevelExample ( u32  UartBaseAddress)

This function does a minimal test on the UART device using the low-level driver macros and functions.

This function sends data and expects to receive the data through the UART. A physical loopback must be done by the user with the tranmit and receive signals of the UART.

Parameters
UartBaseAddressis the base address of the UARTNS550 device and is the XPAR_<UARTNS550_instance>_BASEADDR value from xparameters.h.
Returns
XST_SUCCESS if successful, XST_FAILURE if unsuccessful.
Note
None.

References XUartNs550_RecvByte(), XUartNs550_SendByte(), XUartNs550_SetBaud(), XUartNs550_SetLineControlReg, XUartNs550_WriteReg, XUN_FCR_OFFSET, XUN_FIFO_ENABLE, and XUN_LCR_8_DATA_BITS.

Referenced by main().