怎么通过定时器中断切换LED

嗨，大家好，
我是PSOC 1的初学者。经历了许多应用笔记，我尝试了我的第一个项目在PSoC。我的目标是每1秒切换一个LED。最大可能配置（VC1除法器＝16，VC2除法器＝16，VC3（源于VC2）＝256，定时器周期＝256）给了我0.6秒。因为它是可感知的，所以我继续这样做。在我的电源PSoC板上，一个LED连接到P1Y5。我配置了这些引脚（初始值为1）。当我编程PSoC时，我的LED保持发光（保留在其初始值中）没有切换。我已经检查了中断和所有的声明。我不能在我的知识中发现更多的错误。
我附上了我的项目。
善意的帮助
谢谢，
森达尔



     以下为原文
    Hi all,
       I am a beginner with PSoC 1. Having gone through many app note, i tried my first ever project in PSoC. My aim was to toggle an LED every 1s. Maximum possible configuration ( Vc1 divider= 16, vc2 divider= 16, vc3 (sourced by Vc2) =256 and timer period = 256) gave me 0.6 s . Since it is perceptible i continued as such. In my power Psoc  board an LED is connected to P1_5 . I configured those pins (initial value as 1) . when i programmed the Psoc my led kept on glowing(remaining in its inital value assigned)  no toggling. I have checked for declaration of interrupts and all. I couldnt find more mistakes with my knowledge.
     
    I have attached my project.
    Kindly help
    Thanks,
    Sundar