I want to make a point-and-read device. There seem to be several chipsets from several manufacturers to choose from. Can anyone provide a chipset for development (or where can I find an agent to buy o...
In the circuit using PIC16F716, a 20MHz crystal oscillator is used. As a result, the crystal oscillator sometimes oscillates and sometimes does not oscillate. In addition, the period and waveform of t...
LM3S8962, ASM problem. Why can the following code run normally: OSIntCtxSw PUSH {R4, R5} LDR R4, =NVIC_INT_CTRL ; trigger the PendSV exception LDR R5, =NVIC_PENDSVSET STR R5, [R4] POP {R4, R5} BX LR N...
[img]http://hiphotos.baidu.com/mtbf2000/pic/item/7efbff3f9f4c47fa55e72337.jpg[/img]Insulation resistance: The insulation between the windings and the core of an ideal transformer is an insulation requ...