机电与自动化专业STM32简介Introduction-of-STM32大学毕业论文外

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A. Introduction of STM32

STM32 is based on the family of ARM Cortex-M3 core - designed specifically for embedded applications that require high performance, low cost, low power consumption. The performance is divided into two different series: STM32F103 the \STM32F101 the \highest performance of similar products; the clock frequency of Basic Series is 36MHz, and the prices of 16 position products significantly enhance the performance of more than 16 position products, is the best choice users to buy them. The two series are built-in flash from 32K to 128K, is the combination of the maximum capacity of the SRAM and peripheral interfaces. When the clock frequency reaches 72MHz, it executes from Flash and the STM32 power consumption is 36mA, the lowest power consumption in the 32-bit market products, the equivalent an impressive 0.5mA/MHz.

a. STMicroelectronics Group

STMicroelectronics Group was established in June 1987, is a merger of Italy's SGS Microelectronics and the French Thomson semiconductor company. In May 1998, SGS-THOMSON Microelectronics will change the company name to STMicroelectronics Limited.

STMicroelectronics is one of the largest semiconductor companies in the world. From its inception to date, ST's growing faster than the overall rate of growth of the semiconductor industry. Since 1999, ST has always been one of the world's top ten semiconductor companies. According to the latest industry statistics, STMicroelectronics is the world's fifth largest semiconductor manufacturer and a world leader in many markets. For example, STMicroelectronics is the world's largest dedicated analog chips and power conversion chip manufacturers, the world's largest industrial semiconductor and set-top box chip suppliers and discrete devices, mobile phone camera module and car field of integrated circuits highest in the world.

STMicroelectronics has the entire group employs nearly 50,000, with 16 state-of-the-art R & D institutions and 39 design and application centers, 15 main manufacturing plant, and

has 78 sales offices in 36 countries. The company is headquartered in Geneva, Switzerland, is also the headquarters of European and emerging markets; company's U.S. headquarters in Dallas, Texas, Carrollton; Asia-Pacific headquarters in Singapore; business in Japan by Tokyo as a headquarters ; Greater China headquarters in Shanghai, responsible for business in Hong Kong, mainland China and Taiwan.

December 8, 1994 for the first time since the completion of the public offering of shares, STMicroelectronics has been in New York Stock Exchange (ticker symbol: STM) and Pan Ou Bali Stock Exchange listed, in June 1998, in Milan, Italy, securities Exchange.

STMicroelectronics has nearly 900 million shares in the public offering of shares, of which approximately 71.1% of the shares are publicly traded on the various stock exchanges. Another 27.5% of the stock by STMicroelectronics Holding II BV Limited held its shareholders Finmeccanica and CDP Italian Finmeccanica consortium Areva and France Telecom, the French consortium; remaining 1.4% of treasury shares by STMicroelectronics hold.

b. ST ultra-low-power ARM ? Cortex ?-M3 microcontroller

STM32L series of products are based on the ultra-low-power ARM Cortex-M3 processor core, STMicroelectronics two unique energy-saving technologies: 130nm dedicated low-leakage current manufacturing process and optimize energy-saving architecture to deliver industry-leading energy-saving performance. This series belongs to the lineup 32 STMicroelectronics STM32 microcontroller product family, the product family, a total of 180 balance of product, the full range of products share most of the pin, software and peripherals, excellent compatibility with developers to the maximum design flexibility.

c. ST ultra-low-power ARM ? Cortex ?-M0 microcontroller

STM32F0 series of products are based on the ultra-low-power ARM Cortex-M0 processor core technology and features, enhanced integration, aimed at the application of ultra-low-cost budget. The family of microcontrollers to shorten the 8-bit and 16-bit micro-controller devices and the performance gap between the 32-bit microcontroller device, the user terminal products in the economy to achieve state-of-the-art complex features.

d. Products

Before STM32F105 and STM32F107 interconnect family of microcontrollers,

STMicroelectronics has introduced the STM32 Access Line Enhanced Series, the series of the USB basic series and enhanced; new products follow the Enhanced Series 72MHz processing frequency. Memory 64KB to 256KB Flash and 20KB to 64KB embedded SRAM. The LQFP64, LQFP100, and LFBGA100 three package in the new series, a different package to maintain the pin out consistency, combined with the STM32 platform design philosophy, and developers by selecting the products can be re-optimization function, memory, performance and pin count,

with a minimum of hardware changes to meet individual application needs.

Until July 1, 2010, the circulation of models:

Basic: STM32F101R6 STM32F101C8 STM32F101R8 STM32F101V8 STM32F101RB STM32F101VB Enhanced: STM32F103C8 STM32F103R8 STM32F103V8 STM32F103RBSTM32F103VB STM32F103VE STM32F103ZE

STM32 models Description: STM32F103RBT6 chip model, for example, the compositions of the models of seven parts, its naming rules are as follows:

(1) STM32: STM32 ARM Cortex-M3 represents kernel of 32-bit microcontrollers. (2) F: F represents the chip sub-series. (3) 103:103 representatives Enhanced Series.

(4) R: R This is a representative of the number of pins, where T represents 36 feet, 48 feet, C represents, R represents a 64 feet, V represents the 100-pin 144-pin, Z represents.

(5) B: B a representative of embedded Flash capacity, including 6 on behalf of 32K bytes of Flash, 8 on behalf of 64K bytes Flash, 384K bytes Flash B on behalf of 128K bytes Flash, C on behalf of 256K bytes Flash, D representatives E on behalf of 512K bytes Flash.

(6) T: T a representative of the package, in which H represents BGA package, T represents LQFP package, U represents VFQFPN package.

(7) 6:6 This is a representative of the operating temperature range, where 6 represents -40 - 85 ℃, 7 on behalf of -40 - 105 ℃.

e. STM32F103 performance characteristics

Feature

1. The kernel: ARM32-bit Cortex-M3 CPU, the maximum operating frequency of 72MHz,1.25DMIPS/MHz. Single-cycle multiply and hardware division.

2. Memory: integrated on-chip 32-512KB of Flash memory and 6-64KB SRAM memory. 3. Clock reset and power management: 2.0-3 .6 V drive voltage of the power supply and I / O interface, POR, PDR and programmable voltage detector (PVD), 4-16MHz crystal oscillator, embedded 8MHz RC oscillator tuning circuit in the factory, 40 kHz internal RC oscillator circuit. For the CPU clock PLL. With the calibration for the RTC 32kHz crystal.

4. Low power consumption: three kinds of low-power modes: Sleep, stop, standby mode. Powered the VBAT RTC and backup registers.

5. Debug mode: serial debug (SWD) and JTAG interfaces.

6. DMA: 12-channel DMA controller; supported peripherals: timers, ADC, DAC, SPI, IIC and USART.

7.2 12 us class A / D converter (16-channel): A / D measurement range: 0-3 .6 V. Dual sample and hold capability. The chip integrates a temperature sensor.

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