Hello everyone, I am using the sim300 GPRS module. I use the AVR mega16 microcontroller to control the module to send short messages. I have debugged it with the serial port and there is no problem at...
Do register files and SRAM have the same internal structure, but different peripheral circuits ? Also, why are register files generally made into two ports? In other words, register files only have on...
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I recently made a board, and the button part is the most troublesome! The button is usually pulled up by 10K. When the button is pressed, it will be grounded and take the low level. The button value w...
void zhengti(void) { for (b=0;b 0 && PCA0L >= TIMEOUT) //The high level lasts for more than 120us { EA = 0; UART_initial();//This sentence has been moved to the top (I don't know if it is correct) ser...
Hello everyone: I am debugging the 485 communication program between STM32 and PC, but now I have a very annoying problem. Please help me! STM32 is connected to an SP3485, which leads to two pins 485A...
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