英文:
PIC programming which bits are which in TRIS register
问题
TRISB &= 0b11100000 这段代码将 RB0-RB5 设置为输入。
英文:
I am trying to understand PIC18 code in a format like TRISB &= 0b11100000.
What is the order the individual RB pins appear in? i.e. is this register setting RB0-RB2 as input, or RB5-RB7 as input?
答案1
得分: 1
After using TRISB &= 0b11100000, RB5-RB7 will keep their state and RB0-RB4 will be cleared - set to outputs.
通常情况下，通过 TRISB &= ~(0b00011111) 来清除位，以增加代码的清晰度。
英文:
After using TRISB &= 0b11100000, RB5-RB7 will keep their state and RB0-RB4 will be cleared - set to outputs.
Usually clearing bits is done with TRISB &= ~(0b00011111) for 'clarity'
答案2
得分: 0
在代码中 TRISB &= 0b11100000，二进制值设置了最低的引脚 RB0-RB2 为输出，最高的引脚 RB5-RB7 为输入。
英文:
in the code TRISB &= 0b11100000, the binary value sets the direction of the lowest pins, RB0-RB2, as outputs, and the highest, RB5-RB7, as inputs.
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