The driving signal has been isolated by an optocoupler, the reset circuit is a low-level reset, VCC is connected to a resistor, and the capacitor is grounded. What is the reason?...
I am new to DSP and I have a problem. Please help me! ! When configuring GPIO5 as a hardware interrupt, I use the code in CSL to configure it. The pin selected is CSL_GPIO_PIN5. In the datasheet, the ...
After we made a buzzer together last time, your brain circuits were very fast. Now let's strike while the iron is hot and think about it. In the past, we have been using digital pins (such as D0, D1, ...
I have an LED that needs to be driven, 6.5V, 20mA. I need to make a driver that can control the current. I don't need to adjust it continuously, I just need to switch between 0mA and 20mA. What is the...
LAN8720 configuration: IP: 192.168.192.30 Gateway: 192.168.192.1 A high frequency of ARP packets is detected The content of the packet asks for the mac address of 192.168.192.1, and asks the resp...[Details]
Function List and Notes (lower-level driver part) 1. IO port initialization: control IO and communication IO. Control includes power control, reset and low power mode. Communication is the serial po...[Details]
The independent watchdog of STM32 is driven by a dedicated internal 40Khz low-speed clock, that is, it is still effective even if the main clock fails. Here we need to note that the clock of the inde...[Details]
Requirements: Set timer T1 as an external event counter, count 500 pulses every time, then switch T1 to timing mode and output a positive pulse with a width of 10ms at P1.2. Over and over again. A...[Details]
According to a report by Russian News Agency on November 23, Alexander Hanin, founder and general manager of VisionLabs, a Russian facial recognition software development company, believes that in ...[Details]
In one of my products, there are two chips, AVR and PIC, at the same time. When AVR drives the relay, then drives the contactor. PIC is used for display. I found that PIC actually has a little interf...[Details]
Mobile phone battery charger program made by STC12C2052AD microcontroller #include stc12c2052ad.h #include intrins.h #define uchar unsigned char #define uint unsigned int sbit REF =P1^0; sbi...[Details]
Source program: SLAVR737.ASM uses AVR microcontroller 8-bit data to generate random numbers, outputs random numbers from PORTA and PORTC, and displays them on 8X8 LEDs. For hardware wiring circuit, s...[Details]
High reliability, powerful functions, high speed, low power consumption and low price have always been important indicators for measuring the performance of single-chip microcomputers , and are a...[Details]
EEPROM is a memory often used in microcontroller application systems. It is mainly used to save some data that needs to remain unchanged after power failure. In previous microcontroller systems, an E...[Details]
Note that when the STM32F407 is sampling AD, if the pin is floating, the voltage collected at this time is not 0. 1 ADC pin initialization void Lsens_Init(void) { GPIO_InitTypeDef GPIO_...[Details]
Compared with the F1 chip, the F4 RTC has been greatly improved. The F4 RTC provides a calendar clock and two programmable alarm interrupts, and a periodic programmable wake-up flag. This makes it ve...[Details]
On STM32F103 and other microcontrollers with cortex-m3/m4 cores, the interrupt vector table can be redefined by setting the value of the register SCB- VTOR = FLASH_BASE | VECT_TAB_OFFSET;. However, i...[Details]