Hello, I am new to FPGA. I have seen a template in DE0-nano. I would like to display the value in "PWM_width <= PWM_width[5:0]+ PWM_adj;" one by one in a screen like the cout function in C++
I used "%display()" but I didn't see the value in the message box in quartus. Thanks
/
module DE0_NANO(
//////////// CLOCK //////////
CLOCK_50,
//////////// LED //////////
LED,
//////////// KEY //////////
KEY,
//////////// SW //////////
SW,
//////////// SDRAM //////////
DRAM_ADDR,
DRAM_BA,
DRAM_CAS_N,
DRAM_CKE,
DRAM_CLK,
DRAM_CS_N,
DRAM_DQ,
DRAM_DQM,
DRAM_RAS_N,
DRAM_WE_N,
//////////// EPCS //////////
EPCS_ASDO,
EPCS_DATA0,
EPCS_DCLK,
EPCS_NCSO,
//////////// Accelerometer and EEPROM //////////
G_SENSOR_CS_N,
G_SENSOR_INT,
I2C_SCLK,
I2C_SDAT,
//////////// ADC //////////
ADC_CS_N,
ADC_SADDR,
ADC_SCLK,
ADC_SDAT,
//////////// 2x13 GPIO Header //////////
GPIO_2,
GPIO_2_IN,
//////////// GPIO_0, GPIO_0 connect to GPIO Default //////////
GPIO_0_D,
GPIO_0_IN,
//////////// GPIO_0, GPIO_1 connect to GPIO Default //////////
GPIO_1_D,
GPIO_1_IN,
);
//=======================================================
// PARAMETER declarations
//=======================================================
//=======================================================
// PORT declarations
//=======================================================
//////////// CLOCK //////////
input CLOCK_50;
//////////// LED //////////
output [7:0]LED;
//////////// KEY //////////
input [1:0]KEY;
//////////// SW //////////
input [3:0]SW;
//////////// SDRAM //////////
output [12:0]DRAM_ADDR;
output [1:0]DRAM_BA;
output DRAM_CAS_N;
output DRAM_CKE;
output DRAM_CLK;
output DRAM_CS_N;
inout [15:0]DRAM_DQ;
output [1:0]DRAM_DQM;
output DRAM_RAS_N;
output DRAM_WE_N;
//////////// EPCS //////////
output EPCS_ASDO;
input EPCS_DATA0;
output EPCS_DCLK;
output EPCS_NCSO;
//////////// Accelerometer and EEPROM //////////
output G_SENSOR_CS_N;
input G_SENSOR_INT;
output I2C_SCLK;
inout I2C_SDAT;
//////////// ADC //////////
output ADC_CS_N;
output ADC_SADDR;
output ADC_SCLK;
input ADC_SDAT;
//////////// 2x13 GPIO Header //////////
inout [12:0]GPIO_2;
input [2:0]GPIO_2_IN;
//////////// GPIO_0, GPIO_0 connect to GPIO Default //////////
inout [33:0]GPIO_0_D;
input [1:0]GPIO_0_IN;
//////////// GPIO_0, GPIO_1 connect to GPIO Default //////////
inout [33:0]GPIO_1_D;
input [1:0]GPIO_1_IN;
//=======================================================
// REG/WIRE declarations
//=======================================================
wire reset_n;
reg [26:0] counter;
reg [5:0] PWM_adj;
reg [6:0] PWM_width;
reg [7:0] LED;
//=======================================================
// Structural coding
//=======================================================
assign reset_n = KEY[0];
always @(posedge CLOCK_50 or negedge reset_n)
begin
if(!reset_n)
begin
counter <= 0;
LED[0] <= 0;
end
else begin
counter <= counter+1;
PWM_width <= PWM_width[5:0]+ PWM_adj;
if(counter[26])
begin
PWM_adj <= counter[25:20];
end
else begin
PWM_adj <= ~ counter[25:20];
end
LED[0] <= ~PWM_width[6];
LED[1] <= ~PWM_width[6];
LED[2] <= ~PWM_width[6];
LED[3] <= ~PWM_width[6];
LED[4] <= PWM_width[6];
LED[5] <= PWM_width[6];
LED[6] <= PWM_width[6];
LED[7] <= PWM_width[6];
end
end
endmodule
Hi WCH, have you found any guidance since your post?
