AA0402FR-076K49L

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]

This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]

Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[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]

At this exhibition, Microsoft brought its flagship intelligent voice products - XiaoIce and Xiaona. In addition, the voice will be equipped with an intelligent face recognition system. Let's see ho...[Details]

A crystal oscillator can be electrically equivalent to a two-terminal network consisting of a capacitor and a resistor in parallel and a capacitor in series. In electrical engineering, this network h...[Details]

Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[Details]

1) ADC multi-channel acquisition: (Multi-channel acquisition must use scanning mode. In scanning mode, the channels of the rule group share a register, so DMA transmission must be used; to prevent da...[Details]

1. A/D (Analog-to-Digital) and D/A (Digital-to-Analog) Conversion 1. Pin AOUT: Analog output Vref: reference voltage AGND: Analog ground EXT: Ground OSC: Floating SCL，SDA：IIC AIN0, AIN1, AIN2: anal...[Details]

/*-----------------------------------------------   Name: IIC protocol PCF8591 AD/DA conversion   Content: Use DA input, digital tube display output digital quantity, LED display analog voltage size ...[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]

#include "MSP430x44x.h"  void init_UART(void);  void uart_start(void);  void uart_send(void);  void uart_receive(void);  unsigned char RXDATA_BUF ,TXDATA_BUF ={0xbd,0x77,0x3d,0xc5,0xc6,0xf5,0x68,0x0d...[Details]

/**********（一）Timer A comparison mode*************/  int main( void )  {  WDTCTL=WDTPW+WDTHOLD; //Turn off watchdog  BCSCTL1 =CALBC1_1M Hz ; //Set DCO to 1MHZ  DCOCTL =CALBC1_1MHZ;    P1DIR |= BIT0; ...[Details]

; *************************************************** ; * Function : 8 LED flash program * ; * MICroProcessor : HT48R50A-1/28SKDIP-A * ; *Author:       www.picr.com                  * ; * Crystal : 4...[Details]

　　Recently, it was reported that chip foundry TSMC will start construction of a new 5nm factory in the Southern Taiwan Science and Industrial Park (STSP) this Friday (January 26). TSMC Chairman Morri...[Details]