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最近看到飞思卡尔的Open source BDM for08的程序中有下面这么一段程序：<br /> STA ,X /* switch BDM to high impedance */<br /> ROL i /* shift C into i (from the bottom) */<br /> NOP /* wait 1 more cycle (5 cycles in total together with ROL) */<br />其中static unsigned char i; /* i, j & k are used as timing and general purpose variables in the Tx & Rx routines must be placed into the direct segment */<br />其中的第二句在Code warrior中编译不通过，哪位高人来指点一下，谢谢各位! |
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楼主
