FLT
I2C Programmable Filter Factor
Controls the width of the glitch, in terms of I2C module clock cycles, that the filter must absorb. For any
glitch whose size is less than or equal to this width setting, the filter does not allow the glitch to pass.
0h No filter/bypass
1-Fh Filter glitches up to width of n I2C module clock cycles, where n=1-15d
楼主说的是这个?
I2C Programmable Filter Factor
Controls the width of the glitch, in terms of I2C module clock cycles, that the filter must absorb. For any
glitch whose size is less than or equal to this width setting, the filter does not allow the glitch to pass.
0h No filter/bypass
1-Fh Filter glitches up to width of n I2C module clock cycles, where n=1-15d
这个是抑制I2C总线上的抖动用的,至于是SCL还是SDA上的抖动手册上没有说。
以I2C模块的时钟为基准,设定一定的时钟周期,滤除掉总线上的抖动。
那FLT参数就表示要滤除掉的脉冲的宽度么?
是的,注意这个宽度是以I2C模块时钟为宽度进行计算而不是以I2C时钟的宽度进行计算。
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