文件名称:pwm_led
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呼吸灯显示的一个效果是，灯从灭缓慢的变亮，然后从亮缓慢的变暗，如此循环。
在刚开始设计呼吸灯的时候，可能大家想通过LED灯两端的电压，使电压从零逐渐的增加来实现从灭变亮的这个过程，然后再将电压逐渐降低到零来实现从亮到灭。但是咱们必须要明白一个事实，FPGA引脚输出的电压只有“0”和“1”之分，我们是不能使FPGA的引脚输出电压慢慢增加的。所以通过控制LED灯两端的电压来实现呼吸灯是达不到效果的。
虽然咱们不能使FPGA引脚输出电压从逐渐增加或减小，但是我们可以控制其输出高低电平的时间，若要控制呼吸灯从灭到亮的过程，我们可以使呼吸灯在单位时间内亮的时间依次增加，这样就可以形成这种逐渐变亮的效果。-One effect of the breathable lamp display is that the light fades slowly and then slowly darkens the light, so the loop.
At the beginning of the design of the breathing light, you may want to LED voltage at both ends of the voltage zero to gradually increase the light to achieve this process, and then gradually reduce the voltage to zero to achieve light to off The But we have to understand the fact that the FPGA pin output voltage is only 0 and 1 of the points, we can not make the FPGA pin output voltage slowly increased. So by controlling the voltage across the LED lights to achieve the effect of breathing lights is not up to the effect.
Although we can not make the FPGA pin output voltage gradually increase or decrease, but we can control the output of its high and low time, to control the breathing light the light to the process of light, we can make the breathing light in the unit time Of the time in turn increase, so that you can form this gradually brightening eff
在刚开始设计呼吸灯的时候，可能大家想通过LED灯两端的电压，使电压从零逐渐的增加来实现从灭变亮的这个过程，然后再将电压逐渐降低到零来实现从亮到灭。但是咱们必须要明白一个事实，FPGA引脚输出的电压只有“0”和“1”之分，我们是不能使FPGA的引脚输出电压慢慢增加的。所以通过控制LED灯两端的电压来实现呼吸灯是达不到效果的。
虽然咱们不能使FPGA引脚输出电压从逐渐增加或减小，但是我们可以控制其输出高低电平的时间，若要控制呼吸灯从灭到亮的过程，我们可以使呼吸灯在单位时间内亮的时间依次增加，这样就可以形成这种逐渐变亮的效果。-One effect of the breathable lamp display is that the light fades slowly and then slowly darkens the light, so the loop.
At the beginning of the design of the breathing light, you may want to LED voltage at both ends of the voltage zero to gradually increase the light to achieve this process, and then gradually reduce the voltage to zero to achieve light to off The But we have to understand the fact that the FPGA pin output voltage is only 0 and 1 of the points, we can not make the FPGA pin output voltage slowly increased. So by controlling the voltage across the LED lights to achieve the effect of breathing lights is not up to the effect.
Although we can not make the FPGA pin output voltage gradually increase or decrease, but we can control the output of its high and low time, to control the breathing light the light to the process of light, we can make the breathing light in the unit time Of the time in turn increase, so that you can form this gradually brightening eff
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下载文件列表
pwm_led/
pwm_led/design/
pwm_led/design/pwm_led.v
pwm_led/doc/
pwm_led/doc/pwm_sim.png
pwm_led/pin.txt
pwm_led/quartus_prj/
pwm_led/quartus_prj/db/
pwm_led/quartus_prj/db/.cmp.kpt
pwm_led/quartus_prj/db/prev_cmp_pwm_led.qmsg
pwm_led/quartus_prj/db/pwm_led.db_info
pwm_led/quartus_prj/db/pwm_led.sld_design_entry.sci
pwm_led/quartus_prj/incremental_db/
pwm_led/quartus_prj/incremental_db/compiled_partitions/
pwm_led/quartus_prj/incremental_db/compiled_partitions/pwm_led.db_info
pwm_led/quartus_prj/incremental_db/README
pwm_led/quartus_prj/output_files/
pwm_led/quartus_prj/output_files/Chain_1.cdf
pwm_led/quartus_prj/output_files/Chain_final.cdf
pwm_led/quartus_prj/output_files/pwm_led.asm.rpt
pwm_led/quartus_prj/output_files/pwm_led.done
pwm_led/quartus_prj/output_files/pwm_led.fit.rpt
pwm_led/quartus_prj/output_files/pwm_led.fit.smsg
pwm_led/quartus_prj/output_files/pwm_led.fit.summary
pwm_led/quartus_prj/output_files/pwm_led.flow.rpt
pwm_led/quartus_prj/output_files/pwm_led.jdi
pwm_led/quartus_prj/output_files/pwm_led.map.rpt
pwm_led/quartus_prj/output_files/pwm_led.map.summary
pwm_led/quartus_prj/output_files/pwm_led.pin
pwm_led/quartus_prj/output_files/pwm_led.sof
pwm_led/quartus_prj/pwm_led.qpf
pwm_led/quartus_prj/pwm_led.qsf
pwm_led/quartus_prj/pwm_led.qsf.bak
pwm_led/quartus_prj/pwm_led.qws
pwm_led/sim/
pwm_led/sim/aaa.cr.mti
pwm_led/sim/aaa.mpf
pwm_led/sim/tb_pwm_led.v
pwm_led/sim/vsim.wlf
pwm_led/sim/work/
pwm_led/sim/work/pwm_led/
pwm_led/sim/work/pwm_led/verilog.prw
pwm_led/sim/work/pwm_led/verilog.psm
pwm_led/sim/work/pwm_led/_primary.dat
pwm_led/sim/work/pwm_led/_primary.dbs
pwm_led/sim/work/pwm_led/_primary.vhd
pwm_led/sim/work/tb_pwm_led/
pwm_led/sim/work/tb_pwm_led/verilog.prw
pwm_led/sim/work/tb_pwm_led/verilog.psm
pwm_led/sim/work/tb_pwm_led/_primary.dat
pwm_led/sim/work/tb_pwm_led/_primary.dbs
pwm_led/sim/work/tb_pwm_led/_primary.vhd
pwm_led/sim/work/_info
pwm_led/sim/work/_temp/
pwm_led/sim/work/_temp/vlog3h05j7
pwm_led/sim/work/_temp/vlog4qvswk
pwm_led/sim/work/_temp/vlog54st9n
pwm_led/sim/work/_temp/vlogb5w9k2
pwm_led/sim/work/_temp/vlogffyhf4
pwm_led/sim/work/_temp/vlogni2c1b
pwm_led/sim/work/_temp/vlogshv1cd
pwm_led/sim/work/_temp/vlogt730rx
pwm_led/sim/work/_temp/vlogy4vvm1
pwm_led/sim/work/_vmake
pwm_led/design/
pwm_led/design/pwm_led.v
pwm_led/doc/
pwm_led/doc/pwm_sim.png
pwm_led/pin.txt
pwm_led/quartus_prj/
pwm_led/quartus_prj/db/
pwm_led/quartus_prj/db/.cmp.kpt
pwm_led/quartus_prj/db/prev_cmp_pwm_led.qmsg
pwm_led/quartus_prj/db/pwm_led.db_info
pwm_led/quartus_prj/db/pwm_led.sld_design_entry.sci
pwm_led/quartus_prj/incremental_db/
pwm_led/quartus_prj/incremental_db/compiled_partitions/
pwm_led/quartus_prj/incremental_db/compiled_partitions/pwm_led.db_info
pwm_led/quartus_prj/incremental_db/README
pwm_led/quartus_prj/output_files/
pwm_led/quartus_prj/output_files/Chain_1.cdf
pwm_led/quartus_prj/output_files/Chain_final.cdf
pwm_led/quartus_prj/output_files/pwm_led.asm.rpt
pwm_led/quartus_prj/output_files/pwm_led.done
pwm_led/quartus_prj/output_files/pwm_led.fit.rpt
pwm_led/quartus_prj/output_files/pwm_led.fit.smsg
pwm_led/quartus_prj/output_files/pwm_led.fit.summary
pwm_led/quartus_prj/output_files/pwm_led.flow.rpt
pwm_led/quartus_prj/output_files/pwm_led.jdi
pwm_led/quartus_prj/output_files/pwm_led.map.rpt
pwm_led/quartus_prj/output_files/pwm_led.map.summary
pwm_led/quartus_prj/output_files/pwm_led.pin
pwm_led/quartus_prj/output_files/pwm_led.sof
pwm_led/quartus_prj/pwm_led.qpf
pwm_led/quartus_prj/pwm_led.qsf
pwm_led/quartus_prj/pwm_led.qsf.bak
pwm_led/quartus_prj/pwm_led.qws
pwm_led/sim/
pwm_led/sim/aaa.cr.mti
pwm_led/sim/aaa.mpf
pwm_led/sim/tb_pwm_led.v
pwm_led/sim/vsim.wlf
pwm_led/sim/work/
pwm_led/sim/work/pwm_led/
pwm_led/sim/work/pwm_led/verilog.prw
pwm_led/sim/work/pwm_led/verilog.psm
pwm_led/sim/work/pwm_led/_primary.dat
pwm_led/sim/work/pwm_led/_primary.dbs
pwm_led/sim/work/pwm_led/_primary.vhd
pwm_led/sim/work/tb_pwm_led/
pwm_led/sim/work/tb_pwm_led/verilog.prw
pwm_led/sim/work/tb_pwm_led/verilog.psm
pwm_led/sim/work/tb_pwm_led/_primary.dat
pwm_led/sim/work/tb_pwm_led/_primary.dbs
pwm_led/sim/work/tb_pwm_led/_primary.vhd
pwm_led/sim/work/_info
pwm_led/sim/work/_temp/
pwm_led/sim/work/_temp/vlog3h05j7
pwm_led/sim/work/_temp/vlog4qvswk
pwm_led/sim/work/_temp/vlog54st9n
pwm_led/sim/work/_temp/vlogb5w9k2
pwm_led/sim/work/_temp/vlogffyhf4
pwm_led/sim/work/_temp/vlogni2c1b
pwm_led/sim/work/_temp/vlogshv1cd
pwm_led/sim/work/_temp/vlogt730rx
pwm_led/sim/work/_temp/vlogy4vvm1
pwm_led/sim/work/_vmake
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