STM32F103C8T6芯片手册：高性能ARM Cortex-M3 MCU

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"F103C8T6芯片手册，这是一份介绍STM32F103C8T6微控制器的初步资料，适用于学习和熟悉相关寄存器操作。该芯片属于性能线产品，集成了ARM Cortex-M3内核、USB、CAN以及多种通信接口等功能。" STM32F103C8T6是STMicroelectronics公司生产的基于ARM Cortex-M3内核的32位微控制器，属于STM32系列中的性能线产品。这款芯片具备一系列先进的特性和功能，适合在各种嵌入式应用中使用。 1. **核心特性：** - **Cortex-M3内核**：运行频率高达72MHz，提供90DMIPS的处理能力，即1.25DMIPS/MHz的效能，支持单周期乘法和硬件除法运算。 - **中断系统**：嵌套中断控制器(NVIC)有43个可屏蔽中断通道，中断处理速度快，最低可达6个CPU周期，支持尾链技术优化中断响应时间。 2. **存储器：** - **闪存(Flash Memory)**：容量范围从32KB到128KB，用于存储程序代码。 - **静态随机访问内存(SRAM)**：6KB至20KB，供程序运行时临时数据存储。 3. **时钟、复位与电源管理：** - **供电范围**：支持2.0V到3.6V的应用电压，具有上电复位(POR)、掉电复位(PDR)和可编程电压检测器(PVD)功能。 - **时钟源**：可配置4MHz到16MHz的石英晶体振荡器，内置8MHz精密RC振荡器和32kHz RC振荡器，还支持锁相环(PLL)以提升CPU时钟。 4. **低功耗模式：** - 提供睡眠、停止和待机三种低功耗模式，以及VBAT电源，确保实时时钟(RTC)和备份寄存器在主电源关闭后仍能工作。 5. **模拟特性：** - **双12位A/D转换器**：转换速度为1μs，拥有16个输入通道，转换范围从0到3.6V。 6. **通信接口：** - 集成了USB接口，方便设备连接和数据传输。 - 包含CAN总线，适用于汽车和工业自动化等领域的通信需求。 - 九个通信接口，包括UART、SPI、I2C等，满足不同外设间的通信需求。 7. **其他功能：** - 多达七种16位定时器，可以用于脉冲控制、电机驱动等任务。 - 丰富的GPIO端口，可灵活配置以适应各种输入输出需求。这份手册对于开发者来说是一份宝贵的资源，可以帮助他们理解和掌握STM32F103C8T6微控制器的使用，包括寄存器配置、中断处理、电源管理以及通信接口的实现。通过深入学习，开发者能够充分利用该芯片的强大功能，设计出高效、可靠的嵌入式系统。

Description STM32F103xx

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Advanced control timer (TIM1)

The advanced control timer (TIM1) can be seen as a three-phase PWM multiplexed on 6

channels. It can also be seen as a complete general-purpose timer. The 4 independent

channels can be used for

● Input Capture

● Output Compare

● PWM generation (edge or center-aligned modes)

● One Pulse Mode output

● Complementary PWM outputs with programmable inserted dead-times.

If configured as a standard 16-bit timer, it has the same features as the TIMx timer. If

configured as the 16-bit PWM generator, it has full modulation capability (0-100%).

The counter can be frozen in debug mode.

Many features are shared with those of the standard TIM timers which have the same

architecture. The advanced control timer can therefore work together with the TIM timers via

the Timer Link feature for synchronization or event chaining.

I²C bus

Up to two I²C bus interfaces can operate in multi-master and slave modes. They can support

standard and fast modes.

They support dual slave addressing (7-bit only) and both 7/10-bit addressing in master

mode. A hardware CRC generation/verification is embedded.

They can be served by DMA and they support SM Bus 2.0/PM Bus.

Universal synchronous/asynchronous receiver transmitter (USART)

One of the USART interfaces is able to communicate at speeds of up to 4.5 Mbit/s. The

other available interfaces communicate at up to 2.25 Mbit/s. They provide hardware

management of the CTS and RTS signals, IrDA SIR ENDEC support, are ISO 7816

compliant and have LIN Master/Slave capability.

All USART interfaces can be served by the DMA controller.

Serial peripheral interface (SPI)

Up to two SPIs are able to communicate up to 18 Mbits/s in slave and master modes in full-

duplex and simplex communication modes. The 3-bit prescaler gives 8 master mode

frequencies and the frame is configurable from 8-bit to 16-bit. The hardware CRC

generation/verification supports basic SD Card/MMC modes.

Both SPIs can be served by the DMA controller.

Controller area network (CAN)

The CAN is compliant with specifications 2.0A and B (active) with a bit rate up to 1 Mbit/s. It

can receive and transmit standard frames with 11-bit identifiers as well as extended frames

with 29-bit identifiers. It has three transmit mailboxes, two receive FIFOs with 3 stages and

14 scalable filter banks.

STM32F103xx Description

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Universal serial bus (USB)

The STM32F103xx performance line embeds a USB device peripheral compatible with the

USB Full-speed 12 Mbs. The USB interface implements a full speed (12 Mbit/s) function

interface. It has software configurable endpoint setting and suspend/resume support. The

dedicated 48 MHz clock source is generated from the internal main PLL.

GPIOs (general-purpose inputs/outputs)

Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as

input (with or without pull-up or pull-down) or as peripheral alternate function. Most of the

GPIO pins are shared with digital or analog alternate functions. All GPIOs are high current-

capable.

The I/Os alternate function configuration can be locked if needed following a specific

sequence in order to avoid spurious writing to the I/Os registers.

I/Os on APB2 with up to 18 MHz toggling speed

ADC (analog to digital converter)

Two 12-bit Analog to Digital Converters are embedded into STM32F103xx performance line

devices and each ADC shares up to 16 external channels, performing conversions in single-

shot or scan modes. In scan mode, automatic conversion is performed on a selected group

of analog inputs.

Additional logic functions embedded in the ADC interface allow:

● Simultaneous sample and hold

● Interleaved sample and hold

● Single shunt

The ADC can be served by the DMA controller.

An analog watchdog feature allows very precise monitoring of the converted voltage of one,

some or all selected channels. An interrupt is generated when the converted voltage is

outside the programmed thresholds.

The events generated by the standard timers (TIMx) and the Advanced Control timer (TIM1)

can be internally connected to the ADC start trigger, injection trigger, and DMA trigger

respectively, to allow the application to synchronize A/D conversion and timers.

Temperature sensor

The temperature sensor has to generate a linear voltage with any variation in temperature.

The conversion range is between 2 V < V

DDA

< 3.6 V. The temperature sensor is internally

connected to the ADC_IN16 input channel which is used to convert the sensor output

voltage into a digital value.

Serial wire JTAG debug port (SWJ-DP)

The ARM SWJ-DP Interface is embedded. and is a combined JTAG and serial wire debug

port that enables either a serial wire debug or a JTAG probe to be connected to the target.

The JTAG TMS and TCK pins are shared respectively with SWDIO and SWCLK and a

specific sequence on the TMS pin is used to switch between JTAG-DP and SW-DP.

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