xzdma_writeonlymode_example.c File Reference

Overview

This file contains the example using XZDma driver to do simple data transfer in Write only mode on ZDMA device.

In this mode data will be predefined and will be repetitively written into the given address and for given size. For ADMA only 2 words are repeated and for GDMA 4 words are repeated.

MODIFICATION HISTORY:

Ver   Who     Date     Changes



1.0   vns     2/27/15  First release
      ms      04/05/17 Modified comment lines notation in functions to
                       avoid unnecessary description to get displayed
                       while generating doxygen.
1.3   mus    08/14/17  Do not perform cache operations if CCI is enabled
1.4   adk    11/02/17  Updated example to fix compilation errors for IAR
                 compiler.
1.7   adk    18/03/19  Update the example data verification check to support
                 versal adma IP.
1.7   adk    21/03/19  Fix alignment pragmas in the example for IAR compiler.
1.13    sk     08/02/21  Make Done variable as volatile to fix failure at
                         optimization level 2.
1.13  asa    08/24/21  Make changes to add a missing data invalidation
                       operation just before the destination buffer data is
                       being read.
                       Changes were done for other cleanups and also to
                       ensure that the DMA is reset before the program exits.
1.16  sa     09/29/22  Fix infinite loops in the example.

#include "xzdma.h"
#include "xparameters.h"
#include "xinterrupt_wrap.h"
#include "xil_util.h"
#include "xplatform_info.h"

Functions
int	XZDma_WriteOnlyExample (UINTPTR BaseAddress)
	This function does a test of the data transfer in simple mode of write only mode on the ZDMA driver. More...
int	main (void)
	Main function to call the example. More...

Variables
XZDma	ZDma
	Instance of the ZDMA Device. More...
u32	SrcBuf [4]
	Source buffer. More...
u32	DstBuf [300]
	Destination buffer. More...

Function Documentation

int main

(

void

)

Main function to call the example.

Returns

• XST_SUCCESS if successful.
• XST_FAILURE if failed.

Note

None.

References XZDma_WriteOnlyExample().

int XZDma_WriteOnlyExample

(

UINTPTR

BaseAddress

)

This function does a test of the data transfer in simple mode of write only mode on the ZDMA driver.

Parameters

BaseAddress

contains the base address of the ZDMA device

Returns

• XST_SUCCESS if successful.
• XST_FAILURE if failed.

Note

None.

References XZDma_Config::BaseAddress, XZDma::Config, XZDma_Config::DmaType, XZDma_Transfer::DstAddr, DstBuf, XZDma_DataConfig::DstBurstLen, XZDma_DataConfig::DstBurstType, XZDma_DataConfig::DstCache, XZDma_Transfer::DstCoherent, XZDma_Config::IntrId, XZDma_Config::IntrParent, XZDma_Config::IsCacheCoherent, XZDma_DataConfig::OverFetch, XZDma_Transfer::Pause, SIZE, XZDma_Transfer::Size, XZDma_Transfer::SrcAddr, SrcBuf, XZDma_DataConfig::SrcBurstLen, XZDma_DataConfig::SrcBurstType, XZDma_DataConfig::SrcCache, XZDma_Transfer::SrcCoherent, XZDma_DataConfig::SrcIssue, XZDma_CfgInitialize(), XZDma_DisableIntr, XZDma_EnableIntr, XZDMA_HANDLER_DONE, XZDMA_INCR_BURST, XZDma_IntrHandler(), XZDMA_IXR_DMA_DONE_MASK, XZDma_LookupConfig(), XZDma_Reset(), XZDma_SelfTest(), XZDma_SetCallBack(), XZDma_SetChDataConfig(), XZDma_SetMode(), XZDma_Start(), XZDma_Stop(), XZDma_WOData(), and XZDMA_WRONLY_MODE.

Referenced by main().

Variable Documentation

u32 DstBuf[300]

Destination buffer.

u32 SrcBuf[4]

Source buffer.

XZDma ZDma

Instance of the ZDMA Device.