How would one calculate the bit-band alias fort bit 17 of address 0x4000 0100 in Cortex-M3? Is this correct?
0x4200 0000 + 0X100*32 + 17*4 = 0x4200 2044
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artless noise
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Collin HU
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This looks correct to me. – Realtime Rik Mar 06 '17 at 11:30
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if this is correct, the bit-band alias for bit 1 of address 0x4000 0102 is also 0x4200 2044. How could this be explained? – Collin HU Mar 07 '17 at 11:46
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Because its the same thing! Bit 17 of 0x40000100 is bit 1 of 0x40000102. The address is of individual bytes (the bytes address). For example if 0x40000100 is treated as a 32bit word, then the 32bits are in 0x40000100, 101, 102 & 103. – Realtime Rik Mar 07 '17 at 12:07
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I understand. Thx a lot! – Collin HU Mar 07 '17 at 12:20
