PS PL COMMUNICATION -- CONTROLLING THE LED FROM SWITCHES ALSO WRITING THE DATA TO BLOCK RAM AND READING FROM IT .
1. BLOCK DESIGN:
2. BOARD USED : ZYBO
3. CONSTRAINT FILE :
set_property PACKAGE_PIN G15 [get_ports {sw0[0]}]
set_property PACKAGE_PIN P15 [get_ports {sw1[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {sw0[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {sw1[0]}]
set_property PACKAGE_PIN G15 [get_ports {Op2_0[0]}]
set_property PACKAGE_PIN P15 [get_ports {Op1_0[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {Op2_0[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {Op1_0[0]}]
4. SDK CODE :
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/*
* helloworld.c: simple test application
*
* This application configures UART 16550 to baud rate 9600.
* PS7 UART (Zynq) is not initialized by this application, since
* bootrom/bsp configures it to baud rate 115200
*
* ------------------------------------------------
* | UART TYPE BAUD RATE |
* ------------------------------------------------
* uartns550 9600
* uartlite Configurable only in HW design
* ps7_uart 115200 (configured by bootrom/bsp)
*/
#include <stdio.h>
#include "platform.h"
#include "xil_printf.h"
#include "xgpio.h"
#include "xparameters.h"
#include"sleep.h"
int main()
{
init_platform();
XGpio input , output ,input_mem;
int status =0 ;
int read_data =0 ;
int write_data=0 ;
int read_counter_mem=0 ;
print("Hello World\n\r");
status = XGpio_Initialize(&input, XPAR_INPUT_SW_DEVICE_ID);
if ( status != XST_SUCCESS)
{
xil_printf( " initilaization of gpio 0 is failed \n");
}
xil_printf("initialization of gpio 0 is success \n");
status = XGpio_Initialize(&output, XPAR_OUTPUT_LED_DEVICE_ID);
if ( status != XST_SUCCESS)
{
xil_printf( " initilaization of gpio 1 is failed \n");
}
xil_printf("initialization of gpio 1 is success \n");
status = XGpio_Initialize(&input_mem, XPAR_MEM_READ_DEVICE_ID);
if ( status !=XST_SUCCESS)
{
xil_printf("mem_gpio initialization failed\n");
}
else
{
xil_printf("mem_gpio initializatoin is success\n");
}
XGpio_SetDataDirection(&input, 1,0x1); // ---- input gpio-from switches
XGpio_SetDataDirection(&output, 1,0x0);//----- output led from switches
XGpio_SetDataDirection(&input_mem, 1,0x11111111); //------set the direction of the gpio as a input
while(1)
{
read_data= XGpio_DiscreteRead(&input, 1);
XGpio_DiscreteWrite(&output, 1,write_data);
//read the counter value continuely
read_counter_mem= XGpio_DiscreteRead(&input_mem,1);
// printing the value of the counter in terminal
xil_printf("value of the counter =%d\n", read_counter_mem);
if( read_data==1)
{
xil_printf("led on \n");
write_data =0xf ;
}
else
{
xil_printf("led off \n");
write_data = 0x0;
}
// sleep(100);
}
cleanup_platform();
return 0;
}
5.DESIGN FILE LINK:
youtube link :
https://youtu.be/YJfwOKsl4cM
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