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*
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*
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******************************************************************************/
/*****************************************************************************/
/**
*
* @file xhwicap_ff.c
*
* This example demonstrates how to set and reset FF values. It sets and
* resets the FFX in SLICE_X0Y0. Make sure this FF is not being used in
* the design. This can be done by adding the following line in the UCF
* file.
*
* CONFIG PROHIBIT = SLICE_X0Y0;
*
* This example assumes that there is a UART Device or STDIO Device in the
* hardware system.
*
* @note
*
* This example should run on any or a Virtex4 device.
*
*
* <pre>
*
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -------------------------------------------------------
* 1.00a bjb 12/02/03 First release
* 1.00a bjs 03/08/04 Updated for EDK6.2.1
* 1.00a sv 07/18/05 Minor changes to comply to Doxygen and coding guidelines
* 4.00a hvm 12/1/09 Updated with HAL phase 1 changes
*
* </pre>
*
******************************************************************************/
/***************************** Include Files *********************************/
#include <xparameters.h>
#include <xstatus.h>
#include <xhwicap.h>
#if XHI_FAMILY == XHI_DEV_FAMILY_V4 /* Virtex 4 */
#include <xhwicap_clb_ff.h>
#include <xhwicap_clb_srinv.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
/*
* Row and column to test
*/
#define HWICAP_EXAMPLE_TEST_COL 0
#define HWICAP_EXAMPLE_TEST_ROW 0
#define printf xil_printf /* A smaller footprint print */
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Function Prototypes ******************************/
int HwIcapBramFfExample(u16 DeviceId);
/************************** Variable Definitions *****************************/
static XHwIcap HwIcap;
/*****************************************************************************/
/**
* Main function to call the HwIcap BRAM-FF example.
*
* @param None
*
* @return XST_SUCCESS if successful, XST_FAILURE if unsuccessful
*
* @note None
*
******************************************************************************/
#if XHI_FAMILY == XHI_DEV_FAMILY_V4 /* Virtex 4 */
int main(void)
{
int Status;
/*
* Run the HwIcap BRAM-FF example, specify the Device ID generated in
* xparameters.h
*/
Status = HwIcapBramFfExample(HWICAP_DEVICEID);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
return XST_SUCCESS;
}
/*****************************************************************************/
/**
*
* This function does a test on the BRAM FF 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 HwIcapBramFfExample(u16 DeviceId)
{
u32 SrMode=0;
int Status;
u32 Row;
u32 Col;
u32 Slice;
u32 Loop;
u32 Value;
u8 Contents[1];
XHwIcap_Config *CfgPtr;
/*
* 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;
}
/*
* Identify the FF to change: FFX in SLICE_X0Y0.
*/
Col = XHwIcap_SliceX2Col(HWICAP_EXAMPLE_TEST_COL);
Row = XHwIcap_SliceY2Row(&HwIcap, HWICAP_EXAMPLE_TEST_ROW);
Slice = XHwIcap_SliceXY2Slice(HWICAP_EXAMPLE_TEST_COL,
HWICAP_EXAMPLE_TEST_ROW);
printf("Setting the SRMODE -> SRHIGH. \r\n");
Status = XHwIcap_SetClbBits(&HwIcap, Row, Col,
XHI_CLB_FF.SRMODE[Slice][XHI_CLB_XQ], XHI_CLB_FF.SRHIGH, 1);
if (Status != XST_SUCCESS) {
printf("Failed to Set SRMODE->SRHIGH: %d \r\n", Status);
return XST_FAILURE;
}
printf("Setting the SRMODE -> SRLOW. \r\n");
Status = XHwIcap_SetClbBits(&HwIcap, Row, Col,
XHI_CLB_FF.SRMODE[Slice][XHI_CLB_XQ], XHI_CLB_FF.SRLOW, 1);
if (Status != XST_SUCCESS) {
printf("Failed to Set SRMODE->SRLOW: %d \r\n", Status);
return XST_FAILURE;
}
printf("Set SRINV to SR \r\n");
Status = XHwIcap_SetClbBits(&HwIcap, Row, Col,
XHI_CLB_SRINV.RES[Slice], XHI_CLB_SRINV.SR, 1);
if (Status != XST_SUCCESS) {
printf("Failed to Set SRINV->SR: %d \r\n", Status);
return XST_FAILURE;
}
/*
* Set it back
*/
printf("Set SRINV to SR_B \r\n");
Status = XHwIcap_SetClbBits(&HwIcap, Row, Col,
XHI_CLB_SRINV.RES[Slice], XHI_CLB_SRINV.SR_B, 1);
if (Status != XST_SUCCESS) {
printf("Failed to Set SRINV->SR_B: %d \r\n", Status);
return XST_FAILURE;
}
/*
* Capture the FF states. If the CAPTURE block is instantiated in
* the design then the XHwIcap_CommandCapture() is not necessary.
*/
printf("Capture the FF state. \r\n");
Status = XHwIcap_CommandCapture(&HwIcap);
if (Status != XST_SUCCESS) {
printf("Failed to capture FF states: %d \r\n", Status);
return XST_FAILURE;
}
/*
* Read the FF Contents
*/
Status = XHwIcap_GetClbBits(&HwIcap, Row, Col,
XHI_CLB_FF.CONTENTS[Slice][XHI_CLB_XQ],
Contents, 1);
if (Status != XST_SUCCESS) {
printf("Failed to Get FF Contents: %d \r\n", Status);
return XST_FAILURE;
}
/*
* The readback value of the FF is inverted from its true value.
*/
Value = ~Contents[0] & 0x1;
printf("FF Contents: %d \r\n", Value);
printf("HwicapBramFFExample Passed Successfully ... \r\n\r\n");
return XST_SUCCESS;
}
#else
#error Unsupported FPGA Family
#endif