Recently I saw ST's crystal oscillator design guide AN2867
“Load capacitance is the capacitance of the terminals of the circuit connected to the crystal oscillator. This value is determined by the ext
[i=s]This post was last edited by bigbat on 2019-2-2 15:51[/i] Today I thought I should learn more about PCB design software, so I downloaded [color=#666666][font=Arial, Helvetica][size=13px]Autodesk
[i=s]This post was last edited by Xiaotaiyangyy on 2022-9-21 22:34[/i]As shown in the PMOS anti-reverse connection circuit above, the value of the voltage regulator D1 is 12V. This is to stabilize the
[i=s]This post was last edited by jinglixixi on 2021-8-21 00:45[/i]The AB32VG1 development board is equipped with LED and KEY, and its schematic diagram is shown in Figure 1.Figure 1 LED and KEY circu