I was not originally engaged in this, but was forced to do this, and I am really helpless. Could someone help me connect the Bluetooth to the mobile phone, and then send the ATCommand to dial the Inte
1. IO Configuration Taking SCIA as an example: GPIO35--SCITXDA GPIOA36--SCIRXDA is used Using registers:
GPBPUD: Set pull-up GPIO32-GPIO63 corresponding bit 0 enables pull-up
GPBQSEL1:
GPBMUX1
1. CPU selection. Many people ask whether to buy an arm7 development board or an arm9 development board. My personal suggestion is to buy an ARM9 board. Playing with ARM without running an operating s
[p=26, null, left][color=#000][font=Arial][size=14px]I recently made a board. Of course, I took into account the selection of components. Since the indicators require high accuracy, I was very cautiou
[color=#333333][font=Arial, Microsoft YaHei][size=14px]In the boost circuit of tl494, the chip power supply and the boost part power supply are provided separately. The boost part input is 12V, 2A. Th