MA40020M

Regarding the PHY construction of LWIP, the PHY chip used is LAN8720A, RMII mode.  Regarding the hardware connection part, the Atomic board F407 is used, and the hardware connection is as follows:  ...[Details]

There has been a lot of news about Huawei phones recently . At the Huawei Global Analyst Conference on the 17th , Huawei announced that it will launch 5G phones in the seco...[Details]

Autonomous driving and 5G are the two hot topics that global companies and media are paying the most attention to, and the combination of the two is the focus of everyone's attention....[Details]

In recent years, in order to meet the needs of social development, more and more companies have entered the fields of smart phones, artificial intelligence, VR , AR, etc. After seeing the d...[Details]

The day before yesterday, another mainland technology company submitted a prospectus to the Hong Kong Stock Exchange. The company is called "Jia Nan Creative (hereinafter referred to as 'Jia Nan')"...[Details]

STM32 has 2 watchdogs: independent watchdog and window watchdog. Independent watchdog IWDG: A system fault detector that is independent of the system and is not affected by the system because it has ...[Details]

The calculation formula of the watchdog feeding time (watchdog overflow time) is: Tout=((4*2^prer)*rlr)/40 Tout is the watchdog overflow time (in ms), prer is the watchdog clock prescaler value (...[Details]

Why does MCU have a watchdog? With this question, let's learn about watchdogs. Even the 51 single-chip microcomputer has a watchdog, which shows that this dog has a special meaning to us. The purpose...[Details]

OSC_IN and OSC_OUT are external crystal pins by default. If you do not use an external crystal oscillator on the STM32, how to connect OSC_IN and OSC_OUT If you use the internal RC oscillator instead...[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 the 80C51 single-chip microcomputer, the clock frequency is known to be 6MHz. Please program P1.0 and P1.1 to output square waves with periods of 2s and 0.5s respectively. Please give the answer a...[Details]

One addend is in the on-chip RAM 40H, 41H, 42H units, the other addend is in the on-chip RAM 43H, 44H, 45H, and the sum is stored in the 50H, 51H, 52H units, with the carry bit stored in 00H. Please ...[Details]

/****************************************************************** **                                                        **  File : SPI.c     | Master Send Receive Interrupt |                   ...[Details]

//Note: The GCC-AVR version used in this article is WinAVR20100110 Interrupts are not part of the C language, and the implementation of interrupts is implemented by the compiler. Therefore, the writ...[Details]

What is an AVR microcontroller? What are the advantages of an AVR microcontroller? Why should you choose an AVR microcontroller? AVR microcontroller is a new type of microcontroller developed by ATME...[Details]