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Can someone help me? I'm stuck. I'm using a zybo z7, vivadoblock diagrams, and vivits platform on a C languagesource. The professor is asking to modify a C code suchthat when button0 (BTN0) is pressed only LED0 (LD0) turns on, ifbutton1 is pressed only LED1 turns on, and so on for all fourbuttons. Include a screenshot of the modified code. The originalcode turn all the led lights on, not matter the button pressed.
This is the original code:
#include "xparameters.h" #include "xil_printf.h" #include"xgpio.h" #include "xil_types.h" // Get device IDs fromxparameters.h #define BTN_ID XPAR_AXI_GPIO_BUTTONS_DEVICE_ID#define LED_ID XPAR_AXI_GPIO_LED_DEVICE_ID #define BTN_CHANNEL 1#define LED_CHANNEL 1 #define BTN_MASK 0b1111 #define LED_MASK0b1111 int main() { XGpio_Config *cfg_ptr; XGpio led_device,btn_device; u32 data; xil_printf("Entered function main\r\n"); //Initialize LED Device cfg_ptr = XGpio_LookupConfig(LED_ID);XGpio_CfgInitialize(&led_device, cfg_ptr,cfg_ptr->BaseAddress); // Initialize Button Device cfg_ptr =XGpio_LookupConfig(BTN_ID); XGpio_CfgInitialize(&btn_device,cfg_ptr, cfg_ptr->BaseAddress); // Set Button TristateXGpio_SetDataDirection(&btn_device, BTN_CHANNEL, BTN_MASK); //Set Led Tristate XGpio_SetDataDirection(&led_device,LED_CHANNEL, 0); while (1) { data =XGpio_DiscreteRead(&btn_device, BTN_CHANNEL); data &=BTN_MASK; if (data != 0) { data = LED_MASK; } else { data = 0; }XGpio_DiscreteWrite(&led_device, LED_CHANNEL, data); } }
Which looks like this:
I tried adding different variables, but it still doing the same.This is the code I have right now:
#include "xparameters.h"#include "xil_printf.h"#include "xgpio.h"#include "xil_types.h"// Get device IDs from xparameters.h#define BTN_ID XPAR_AXI_GPIO_BUTTONS_DEVICE_ID#define LED_ID XPAR_AXI_GPIO_LED_DEVICE_ID#define BTN_CHANNEL0 1#define BTN_CHANNEL1 1#define BTN_CHANNEL2 1#define BTN_CHANNEL3 1#define LED_CHANNEL0 1#define LED_CHANNEL1 1#define LED_CHANNEL2 1#define LED_CHANNEL3 1#define BTN_MASK0 0b1111#define BTN_MASK1 0b1111#define BTN_MASK2 0b1111#define BTN_MASK3 0b1111#define LED_MASK0 0b1111#define LED_MASK1 0b1111#define LED_MASK2 0b1111#define LED_MASK3 0b1111
int main() { XGpio_Config *cfg_ptr; XGpioled_device0,led_device1,led_device2,led_device3,btn_device0,btn_device1,btn_device2,btn_device3; u32 data; xil_printf("Entered functionmain\r\n"); // Initialize LEDDevice cfg_ptr =XGpio_LookupConfig(LED_ID); XGpio_CfgInitialize(&led_device0, cfg_ptr,cfg_ptr->BaseAddress); XGpio_CfgInitialize(&led_device1, cfg_ptr,cfg_ptr->BaseAddress); XGpio_CfgInitialize(&led_device2, cfg_ptr,cfg_ptr->BaseAddress); XGpio_CfgInitialize(&led_device3, cfg_ptr,cfg_ptr->BaseAddress);
// Initialize ButtonDevice cfg_ptr =XGpio_LookupConfig(BTN_ID); XGpio_CfgInitialize(&btn_device0, cfg_ptr,cfg_ptr->BaseAddress); XGpio_CfgInitialize(&btn_device1, cfg_ptr,cfg_ptr->BaseAddress); XGpio_CfgInitialize(&btn_device2, cfg_ptr,cfg_ptr->BaseAddress); XGpio_CfgInitialize(&btn_device3, cfg_ptr,cfg_ptr->BaseAddress);
// Set Button Tristate XGpio_SetDataDirection(&btn_device0, BTN_CHANNEL0,BTN_MASK0); XGpio_SetDataDirection(&btn_device1, BTN_CHANNEL1,BTN_MASK1); XGpio_SetDataDirection(&btn_device2, BTN_CHANNEL2,BTN_MASK2); XGpio_SetDataDirection(&btn_device3, BTN_CHANNEL3,BTN_MASK3);
// Set Led Tristate XGpio_SetDataDirection(&led_device0, LED_CHANNEL0,0); XGpio_SetDataDirection(&led_device1, LED_CHANNEL1,0); XGpio_SetDataDirection(&led_device2, LED_CHANNEL2,0); XGpio_SetDataDirection(&led_device3, LED_CHANNEL3,0);
while (1) { data0 =XGpio_DiscreteRead(&btn_device0, BTN_CHANNEL0); data0&= BTN_MASK0;
data1 =XGpio_DiscreteRead(&btn_device1, BTN_CHANNEL1); data1&= BTN_MASK1;
data2 =XGpio_DiscreteRead(&btn_device2, BTN_CHANNEL2); data2&= BTN_MASK2;
data3 =XGpio_DiscreteRead(&btn_device3, BTN_CHANNEL3); data3&= BTN_MASK3;
if(data0 != 0) { data0 = LED_MASK0; } else{ data0 = 0; }
if(data1 != 0) { data1 = LED_MASK1; } else{ data1 = 0; }
if(data2 != 0) { data2 = LED_MASK2; } else{ data2 = 0; }
if(data3 != 0) { data3 = LED_MASK3; } else{ data3 = 0; }
XGpio_DiscreteWrite(&led_device0, LED_CHANNEL0,data0); XGpio_DiscreteWrite(&led_device1, LED_CHANNEL1,data1); XGpio_DiscreteWrite(&led_device2, LED_CHANNEL2,data2); XGpio_DiscreteWrite(&led_device3, LED_CHANNEL3,data3);
}}
I don't know if I have to modify the 0b1111 next to theBTN_MASK and LED_MASK, but I'm not sure which values I would addthere then.
I will also post a picture of the block diagram just incase.
#include "xparameters.h" #include "xil_printf.h" #include "xgpio.h" #include "xil_types.h" // Get device IDs from xparameters.h #define BTN_ID XPAR_AXI_GPIO_BUTTONS_DEVICE_ID #define LED_ID XPAR_AXI_GPIO_LED_DEVICE_ID #define BTN_CHANNEL 1 #define LED_CHANNEL 1 #define BTN_MASK Ob1111 #define LED_MASK Ob1111 int main() { XGpio_Config *cfg_ptr; XGpio led device, btn_device; u32 data; xil_printf("Entered function main\r\n"); // Initialize LED Device cfg_ptr = XGpio_LookupConfig (LED_ID); XGpio_CfgInitialize(&led_device, cfg_ptr, cfg_ptr->BaseAddress); //Initialize Button Device cfg_ptr = XGpio_LookupConfig(BTN_ID); XGpio_CfgInitialize(&btn_device, cfg_ptr, cfg_ptr->BaseAddress); // Set Button Tristate XGpio_SetDataDirection (&btn_device, BTN_CHANNEL, BTN_MASK); // Set Led Tristate XGpio_SetDataDirection (&led_device, LED_CHANNEL, 0); while (1) { data=XGpio_Discrete Read (&btn_device, BTN_CHANNEL); data &= BTN_MASK; if (data != 0) { } else { } data LED_MASK; data = 0; XGpio_DiscreteWrite(&led_device, LED_CHANNEL, data);
processing system 7 0 MAX_GPO_ACLK ZYNQ. S_AX ZYNQ7 Processing System AXI_GPIO_LED _ad_add(80) damady arvalid saavad asady adawald - brady dhp(10 ad bvalid - ◄s_ad_data(31 - _ad_mady ◄smas(10) _ad_valid _ad_data[31:0) wady watt(20) _ad_valid sack dann AXI GPIO + SAX s_ad_adk DOR + FIXED IO + USBIND 0 + M_AX GP + FCLK CLK FOLK RESETO N dann AXI GPIO BUTTONS AXI GPIO GRO- jq3► GRO + st_ps7_0_50M slow sync_dk axt rain aux natin mb_debug ya dam Jackad bus struct - paripheral_rast(0:0) interconnectars(0:0) ► paripharal_anisatr(0:0) ► Processor System Reset ps7_0_axi_periph D + 500 AX ACLK ARESETN 500 ACLK 500 ARE SETN MOO_ACLK MOO_ARE SETN MO1ACLK MO1 ARE SETN A MOO_AX + MOLAX + AXI Interconnect leds_4bits DDR FIXED_IO