*******************
bit_word_addr = bit_band_base + (byte_offset x 32) + (bit_number × 4)
where:
bit_word_addr is the address of the word in the alias memory region that maps to the
targeted bit.
bit_band_base is the starting address of the alias region
byte_offset is the number of the byte in the bit-band region that contains the targeted bit
bit_number is the bit position (0-31) of the targeted bit.
*******************
byte_offset 如何翻译？按位范围bit position (0-31)，我想应该是字（32位）的起始点地址字节-20000000H。 |
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楼主
