[i=s] This post was last edited by chenbingjy on 2018-10-9 11:20 [/i]There are two USB ports, one with STLINK and one without STLINK. The one with STLINK works fine, but the one without STLINK does no
MF RC500 is a member of a highly integrated reader IC family for contactless communication at 13.56MHz. This reader IC family utilizes advanced modulation and demodulation concepts and fully integrate
[i=s]This post was last edited by xiaxingxing on 2021-10-7 20:24[/i]As shown in the figure below, the cutoff frequency of the second-order SK low-pass filter is 14.5kHz. According to the formula in th