/******************************************************************************
*
* Copyright (C) 2003 - 2014 Xilinx, Inc. All rights reserved.
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* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
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******************************************************************************/
/*****************************************************************************/
/**
*
* @file xhwicap_lut.c
*
* This example tests some of the values in a LUT. This example requires the
* use of a LUT not in use. One can reserve a LUT in the UCF file with the
* constraint: CONFIG PROHIBIT = SLICE_X0Y0
*
*
* @note
*
* This example should run on any Virtex4 or a Virtex5 or a Virtex6 device.
*
*
* <pre>
*
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- ------------------------------------------------------
* 1.00a bjb 10/30/03 Original version
* 1.00a bjs 01/01/04 First release
* 1.00a bjs 03/08/04 Updated for EDK 6.2.1
* 1.00a sv 07/18/05 Minor changes to comply to Doxygen and coding guidelines
* 2.00a ecm 10/04/07 Changes to support FIFO mode and V5
* 4.00a hvm 11/30/09 Added support for V6
* </pre>
*
******************************************************************************/
/***************************** Include Files *********************************/
#include <xparameters.h>
#include <xhwicap.h>
#if ((XHI_FAMILY == XHI_DEV_FAMILY_V4) || (XHI_FAMILY == XHI_DEV_FAMILY_V5 ) ||\
(XHI_FAMILY == XHI_DEV_FAMILY_V6))
#include <xhwicap_clb_lut.h>
#endif
#include <stdio.h>
/************************** Constant Definitions *****************************/
/*
* The following constants map to the XPAR parameters created in the
* xparameters.h file. They are defined here such that a user can easily
* change all the needed parameters in one place.
*/
#define HWICAP_DEVICEID XPAR_HWICAP_0_DEVICE_ID
/*
* This is the LUT that is tested . This LUT must not be used by the design.
* This can be done in the system.ucf file by putting the following statements:
*
* CONFIG PROHIBIT = SLICE_X[COL]Y[ROW];
*
* If you wish to reserve the entire column then put the following statement in
* the ucf file:
*
* CONFIG PROHIBIT = SLICE_X[COL]Y*;
*
*/
#define TEST_COL 0 /* Test Column for LUT */
#define TEST_ROW 0 /* Test Row for LUT */
#if XHI_FAMILY == XHI_DEV_FAMILY_V4
#define TEST_LUT XHI_CLB_LUT_F /* Test LUT */
#define LUT_SIZE 16 /* The number of bits in a LUT */
#elif ((XHI_FAMILY == XHI_DEV_FAMILY_V5) || (XHI_FAMILY == XHI_DEV_FAMILY_V6))
#define TEST_LUT XHI_CLB_LUT_A /* Test LUT */
#define LUT_SIZE 64 /* The number of bits in a LUT */
#endif
#define MAX_TEST_COUNT 0xFF
#define printf xil_printf /* A smaller footprint printf */
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Function Prototypes ******************************/
int HwIcapLutExample(u16 DeviceId);
/************************** Variable Definitions *****************************/
static XHwIcap HwIcap;
u8 LutWriteBuffer[LUT_SIZE]; /* Value written to the LUT */
u8 LutReadBuffer[LUT_SIZE]; /* Value read back from the LUT */
/*****************************************************************************/
/**
*
* Main function to call the HwIcap LUT example.
*
* @param None
*
* @return XST_SUCCESS if successful, otherwise XST_FAILURE.
*
* @note None
*
******************************************************************************/
#if ((XHI_FAMILY == XHI_DEV_FAMILY_V4) || (XHI_FAMILY == XHI_DEV_FAMILY_V5 ) ||\
(XHI_FAMILY == XHI_DEV_FAMILY_V6))
int main(void)
{
int Status;
/*
* Run the HwIcap LUT example, specify the Device ID generated in
* xparameters.h
*/
Status = HwIcapLutExample(HWICAP_DEVICEID);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
return XST_SUCCESS;
}
/*****************************************************************************/
/**
*
* This function does a test on the LUT as an example.
*
* @param DeviceId is the XPAR_<HWICAP_INSTANCE>_DEVICE_ID value from
* xparameters.h
*
*
* @return XST_SUCCESS if successful, otherwise XST_FAILURE
*
* @note None.
*
******************************************************************************/
int HwIcapLutExample(u16 DeviceId)
{
XHwIcap_Config *CfgPtr; /* Pointer to HwIcap Config */
u32 Count; /* Current value to test */
int Status; /* Return value */
u32 Index; /* Counter */
u32 RowNum; /* CLB Row location */
u32 ColNum; /* CLB Column location */
u32 Slice; /* CLB Slice location */
printf("\r\n Starting HwIcapLutExample. \r\n");
/*
* Initialize the HwIcap instance.
*/
CfgPtr = XHwIcap_LookupConfig(DeviceId);
if (CfgPtr == NULL) {
return XST_FAILURE;
}
Status = XHwIcap_CfgInitialize(&HwIcap, CfgPtr, CfgPtr->BaseAddress);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Perform a self-test to ensure that the hardware was built correctly.
*/
Status = XHwIcap_SelfTest(&HwIcap);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Identify the LUT to change: LUT in SLICE_X0Y0.
*/
ColNum = XHwIcap_SliceX2Col(TEST_COL);
RowNum = XHwIcap_SliceY2Row(&HwIcap, TEST_ROW);
Slice = XHwIcap_SliceXY2Slice(TEST_COL, TEST_ROW);
/*
* Loop through all possible LUT Values
*/
for (Count = 0; Count < MAX_TEST_COUNT; Count++) {
/*
* Set the LUT array to be assigned
*/
for (Index = 0; Index < LUT_SIZE; Index++) {
LutWriteBuffer[Index] = (Count >> Index) & 0x01;
LutReadBuffer[Index] = 0;
}
/*
* Set LUT
*/
Status = XHwIcap_SetClbBits(&HwIcap, RowNum, ColNum,
XHI_CLB_LUT.CONTENTS[Slice][TEST_LUT],
LutWriteBuffer, LUT_SIZE);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Read back LUT value
*/
Status = XHwIcap_GetClbBits(&HwIcap, RowNum, ColNum,
XHI_CLB_LUT.CONTENTS[Slice][TEST_LUT],
LutReadBuffer, LUT_SIZE);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Compare the written and read values
*/
for (Index = 0; Index < LUT_SIZE; Index++) {
if (LutWriteBuffer[Index] != LutReadBuffer[Index]) {
printf("\r\n HwIcapLutExample Failed. Cnt = %d , Index = %d WrBuf = %d RdBuf= %d\
\r\n", Count, Index, LutWriteBuffer[Index], LutReadBuffer[Index] );
return XST_FAILURE;
}
}
}
printf("\r\n HwIcapLutExample Passed Successfully.\r\n");
return XST_SUCCESS;
}
#else
#error Unsupported FPGA Family
#endif