飞思卡尔HCS12X系列的IRQ中断测试工程，下降沿控制PB口LED灯亮灭，我在codewarrior 5.1上建的过程，运行在芯片MC9S12XDP512的开发板SK-S12XDP512-A上面。-Freescale HCS12X series IRQ interrupt test engineering, down along the PB mouth LED light control, destroyed in codewarrior 5.1 I built on the process