瑞泰ICETEK－28335－A的can例程里面
ECanaShadow和 ECanaRegs是相同结构的
ECanaShadow.CANTIOC.all = ECanaRegs.CANTIOC.all;
ECanaShadow.CANTIOC.bit.TXFUNC = 1;
ECanaRegs.CANTIOC.all = ECanaShadow.CANTIOC.all;
这段句子的意思不清楚，
eCAN control registers require 32-bit access.
// If you want to write to a single bit, the compiler may break this
// access into a 16-bit access. One solution, that is presented here,
// is to use a shadow register to force the 32-bit access.
// Read the entire register into a shadow register. This access
// will be 32-bits. Change the desired bit and copy the value back
// to the eCAN register with a 32-bit write.
// Configure the eCAN RX and TX pins for eCAN transmissions
这段注解比较难理解，大家有做过这个的没？2812这个模块应该和28335差不多，哪位高手能解答下啊~ |
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