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The iic.h file is as follows:
#ifndef _stm32f103_myi2c_h_
#define _stm32f103_myi2c_h_
//IO direction setting
#define SDA_IN() {GPIOB- CRH&=0XFFFF0FFF;GPIOB- CRH|=8 12;}
#define SDA_OUT() {G...[Details]
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There are two commonly used methods for measuring transformation ratio, namely high-voltage measurement method and low-voltage measurement method. Low voltage measurement method: connect the high v...[Details]
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In an intercom system where analog audio transmission and reception signals share a channel, in order to reduce the impact of sidetone on the call quality, all intercom equipment needs to add a sideto...[Details]
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In recent years, greenhouse environmental control has been studied and applied accordingly at home and abroad. Most of the existing intelligent greenhouse system hardware in China is imported from ...[Details]
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Thermocouples are widely used in industrial temperature measurement due to their simple structure, easy manufacturing, and convenient measurement. However, to obtain correct measurement results, it is...[Details]
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With the popularity of mobile devices such as laptops,
mobile phones
, and PDAs,
the development of
integrated
circuits
corresponding to various
battery
power sources
i...[Details]
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When using any instrument for measurement, there is always a measurement error. The difference between the measurement result and the true value of the measurement is called measurement error. The...[Details]
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Applied Materials, the world's largest supplier of chipmaking equipment, plans to acquire Japanese peer Kokusai Electric for less than 250 billion yen ($2.3 billion), Nikkei reported. ...[Details]
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Today I will share with you some hidden practical tips. These tips are very useful, and you may not know all of them. Let's take Honor as an example. Such mobile phones, whether they are iOS or Andro...[Details]
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According to Shangguan News, Ma Yide, a member of the National People's Congress and a researcher at the Institute of Law of the Beijing Academy of Social Sciences, said in an interview with reporter...[Details]
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In the past, particle size analysis methods usually used screening or sedimentation methods. The commonly used sedimentation method has the disadvantages of slow detection speed (especially for small ...[Details]
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On the evening of October 12, Fenghua High-Tech released its performance forecast for the first three quarters, stating that the company expects to achieve a net profit attributable to shareholders ...[Details]
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In the early morning of August 10, US President Biden signed an executive order to establish a foreign investment review mechanism to restrict US entities from investing in China's semiconductor and ...[Details]
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Since the release of the Xiaomi TV 5 series in November 2019, Xiaomi has not updated its digital series TV products for a year and a half. This may represent Xiaomi's confidence in its competitivenes...[Details]
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OBC, DCDC, PDU
Constituting the “three small electrics” of new energy
Due to the different power systems, the "three electrics" of new energy vehicles have replaced the fuel tank, engine,...[Details]
Mobile and portable
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