I am developing on ARM7 and using UART0 for serial communication. I want to know the principle of data transmission, that is, how to send data and how to trigger interrupts. I just graduated and don't...
Environment: Linux 2.4.20 gcc compiler is used to compile a driver for powerpc. I found that there are two compile options -mmultiple -mstring in the source code makefile. If you don't remove them, th...
"The maturity period of 3G technology is too long. We will fully prepare for 4G." At the first media meeting after taking office, Wu Zhensheng, president of Nortel Greater China, revealed the major st...
Use TI 74HC4052 4-channel analog switch (voltage support 2~6V) to switch the serial port channels;
Both the MCU and 74HC4052 are powered by 3.3V power supply. One of the eight 74HC4052 chips is not wo...