STM8-SWIM通信协议和调试模块用户手册(部分翻译)

STM8 MiniKit 用户手册1．简介STM8 MiniKit 是一款基于STM8系列八位单片机的低成本评估板。

评估板上配有基本的外部器件，从而方便用户对STM8的内核及外设的性能进行评估。

本文档对评估板的使用作了简要说明，并附上相关原理图和PCB 图。

此外对评估板附带的5个例程也作了简要说明。

2．评估板介绍 2.1 评估板评估板布局布局2.2 原理图原理图与与PCB 原理图：PCB：3．参考代码说明随盘附赠的CD中共包含5个例程：Music：音乐播放例程；CSS：时钟切换及时钟安全系统的使用例程；Sinwave：正弦波发生例程；LED：LED控制例程；UART：串口与PC通讯例程；注：1)本例程仅适用于STM8S MiniKit评估板。

且调试时请确认模拟电源选择跳线已经连接到5V/3.3V。

2)所有的例程均使用Cosmic C语言编译器，用户请预先安装Cosmic C编译器。

3)所有项目均基于STVD 4.1.0集成开发环境，用户请预先安装相应软件。

4)所有例程使用STLink作为在线调试工具，请在进行在线调试前确认PC与STLink的硬件连接。

3.1 Music例程说明项目描述本例程通过采用pwm信号驱动蜂鸣器播放音乐并调节音量与音调，来说明如何使用Timer,ADC,GPIO,TLI:使用HSI为系统时钟源，并配置恰当的分频比；Timer2 CC1通道配置为PWM模式用以驱动蜂鸣器；Timer4 溢出中断用作LED1,LED2,LED3闪烁的时基；TLI（PD7)中断用来切换音乐的音调；ADC 采样电位器电压来调节占空比以控制音量。

项目文件main.c 包含"main" 函数的主程序stm8_interrupt_vector.c 中断向量表硬件环境将在线调试工具与目标板通过swim接口相连；在J1接口连接9~12v的直流电；使用电位器来调节蜂鸣器音量；使用按键可在高音调和低音调之间切换；如何开始可按照如下步骤调试：1)直接打开已经建立好的项目(..\Demo\Music\Demo.stw)，或创建一个项目并且配置好所有的项目选项（可按默认值配置）；2)编译这个项目Project->Rebuild all；3)下载程序到MCU进行调试：Debug->Start/Stop Debug Session4)运行程序：Debug->Run (F5)调节评估板上的电位器RV1来调节BUZZ音量；用按键来切换乐曲的音调；3个LED灯(LD1, LD2, LD3) 依次点亮。

STM8 MiniKit 用户手册1．简介STM8 MiniKit 是一款基于STM8系列八位单片机的低成本评估板。

评估板上配有基本的外部器件，从而方便用户对STM8的内核及外设的性能进行评估。

本文档对评估板的使用作了简要说明，并附上相关原理图和PCB 图。

此外对评估板附带的5个例程也作了简要说明。

2．评估板介绍 2.1 评估板评估板布局布局2.2 原理图原理图与与PCB 原理图：PCB：3．参考代码说明随盘附赠的CD中共包含5个例程：Music：音乐播放例程；CSS：时钟切换及时钟安全系统的使用例程；Sinwave：正弦波发生例程；LED：LED控制例程；UART：串口与PC通讯例程；注：1)本例程仅适用于STM8S MiniKit评估板。

且调试时请确认模拟电源选择跳线已经连接到5V/3.3V。

2)所有的例程均使用Cosmic C语言编译器，用户请预先安装Cosmic C编译器。

3)所有项目均基于STVD 4.1.0集成开发环境，用户请预先安装相应软件。

4)所有例程使用STLink作为在线调试工具，请在进行在线调试前确认PC与STLink的硬件连接。

3.1 Music例程说明项目描述本例程通过采用pwm信号驱动蜂鸣器播放音乐并调节音量与音调，来说明如何使用Timer,ADC,GPIO,TLI:使用HSI为系统时钟源，并配置恰当的分频比；Timer2 CC1通道配置为PWM模式用以驱动蜂鸣器；Timer4 溢出中断用作LED1,LED2,LED3闪烁的时基；TLI（PD7)中断用来切换音乐的音调；ADC 采样电位器电压来调节占空比以控制音量。

项目文件main.c 包含"main" 函数的主程序stm8_interrupt_vector.c 中断向量表硬件环境将在线调试工具与目标板通过swim接口相连；在J1接口连接9~12v的直流电；使用电位器来调节蜂鸣器音量；使用按键可在高音调和低音调之间切换；如何开始可按照如下步骤调试：1)直接打开已经建立好的项目(..\Demo\Music\Demo.stw)，或创建一个项目并且配置好所有的项目选项（可按默认值配置）；2)编译这个项目Project->Rebuild all；3)下载程序到MCU进行调试：Debug->Start/Stop Debug Session4)运行程序：Debug->Run (F5)调节评估板上的电位器RV1来调节BUZZ音量；用按键来切换乐曲的音调；3个LED灯(LD1, LD2, LD3) 依次点亮。

一、如何用STLINK下载STM8如果想长期用串口下载，第一次下载就必须要用ST-LINK下载，由于考虑到部分同学没有ST-LINK,我们电子科技协会会先用ST-LINK将所有转接板下载一次，使用者可以直接用串口下载了，方便了广大同学。

不过在这里还是简单的介绍一下如何用ST-LINK下载。

第一步：打开STVP(ST Visual Programmer)，图1所示图1然后按下File里的Open，打开你所想要下载的程序。

第二步：选择Configure -> Configure ST Visual Programmer。

然后会弹出一个窗口，如图2图2选择ST-LINK,SWIM,STM8S105X4.然后按确定回到原来的界面。

第三步：按下Program -> Current tab就可以把程序下载进去了。

注：硬件上就ST-LINK的SWIM接STM8的SWIM(PD1)脚，SWIM-RST接51板上的第9脚（NRST）;还有VCC和GND就接开发板上的电源和地。

注意要供上电后才能下载。

二、如何用串口下载STM8注：要用Flash Loader Demonstrator2.2版本才能下载，下载前要把USB和串口下载的转换按键按下。

也就是中间那个按键按下，即选择了串口下载。

第一步：打开Flash Loader Demonstrator2.2 ，如图3设置，注意Echo要选择为Echo Mode。

然后按下STM8转接板上的复位按键，松手后马上点击Next。

图3第二步：连接成功后会弹出如图4警告，按确定就行了。

因为刚启动软件还没有选择合适器件，下载完毕不关掉软件再重复一次就没有这个警告了。

图4第三步：Target选择STM_32K，然后点Next。

图5第四步：这个界面可以选择擦除、下载、读取操作，我们主要目的是下载。

选择好下载文件，擦除（擦除必要页、不擦除、全部擦除）按需选择一项。

可以勾选的选项有：跳到用户程序（下载完毕）、优化（去掉某些0xFF）、下载后校检。

January 2023UM1075 Rev 91/19UM1075User manualST-LINK/V2 in-circuit debugger/programmerfor STM8 and STM32IntroductionThe ST-LINK/V2 is an in-circuit debugger/programmer for the STM8 and STM32microcontrollers. The single wire interface module (SWIM) and the JTAG/serial wire debugging (SWD) interfaces facilitate the communication with any STM8 or STM32 microcontroller operating on an application board.In addition to providing the same functionalities of the ST-LINK/V2, the ST-LINK/V2-ISOL features digital isolation between the PC and the target application board. It also withstands voltages of up to 1000 V RMS .The USB full-speed interface enables communication with a PC and:•STM8 devices via ST Visual Develop (STVD) or ST Visual Program (STVP) software (available from STMicroelectronics)•STM32 devices via IAR ™, Keil ®, STM32CubeIDE, STM32CubeProgrammer, and STM32CubeMonitor integrated development environments.Figure 1. ST-LINK/V2 and ST-LINK/V2-ISOLST-LINK/V2ST-LINK/V2-ISOLContents UM1075Contents1Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3Product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64Hardware configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1Connection with STM8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.1Standard ERNI connection with SWIM flat ribbon . . . . . . . . . . . . . . . . . . 94.1.2Low-cost SWIM connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.1.3SWIM signals and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.2Connection with STM32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.3ST-LINK/V2 status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145Software configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155.1ST-LINK/V2 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155.2STM8 application development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155.3STM32 application development and flash programming . . . . . . . . . . . . 15 6Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182/19UM1075 Rev 9UM1075List of tables List of tablesTable 1.List of the order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 2.SWIM flat ribbon connections for ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 3.SWIM low-cost cable connections for ST-LINK/V2-ISOL. . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 4.JTAG/SWD cable connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 5.How third-party toolchains support ST-LINK/V2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 6.Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18UM1075 Rev 93/19List of figures UM1075 List of figuresFigure 1.ST-LINK/V2 and ST-LINK/V2-ISOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2.ST-LINK/V2 product contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3.ST-LINK/V2-ISOL product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4.ST-LINK/V2 (on the left) and ST-LINK/V2-ISOL (on the right) connectors. . . . . . . . . . . . . . 8 Figure 5.ERNI connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 6.Key detail on connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 7.Low-cost connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 8.Target SWIM connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 9.JTAG and SWD connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 10.JTAG debugging flat ribbon layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 11.SWIM ST-LINK/V2 standard ERNI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 12.SWIM ST-LINK/V2 low-cost cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4/19UM1075 Rev 9UM1075 Rev 95/19UM1075Features 1 Features•5 V power supplied by a USB connector •USB 2.0 full speed compatible interface •USB standard A to Mini-B cable •SWIM specific features–1.65 to 5.5 V application voltage supported on SWIM interface –SWIM low-speed and high-speed modes supported –SWIM programming-speed rate: 9.7 and 12.8 Kbytes/s, respectively, for low and high speed –SWIM cable for connection to the application via an ERNI standard vertical (ref: 284697 or 214017) or horizontal (ref: 214012) connector –SWIM cable for connection to the application via a pin header or a 2.54 mm pitch connector•JTAG/serial wire debugging (SWD) specific features – 1.65 to 3.6 V application voltage supported on the JTAG/SWD interface and 5 Vtolerant inputs (a)–JTAG cable for connection to a standard JTAG 20-pin pitch 2.54 mm connector–Supports JTAG communication, up to 9 MHz (default: 1.125 MHz)–Supports serial wire debug (SWD) up to 4 MHz (default: 1.8 MHz), and serial wireviewer (SWV) communication, up to 2 MHz •Direct firmware update feature supported (DFU)•Status LED, blinking during communication with the PC •1000 V RMS high isolation voltage (ST-LINK/V2-ISOL only)•Operating temperature from 0 to 50 °C2 Ordering informationTo order the ST-LINK/V2, refer to Table 1.a.The ST-LINK/V2 can communicate with targets operating below 3.3 V, but generates output signals at thisvoltage level. STM32 targets are tolerant to this over-voltage. If some other components of the target boardare sensible, use ST-LINK/V2-ISOL, STLINK-V3MINIE or STLINK-V3SET with B-STLINK-VOLT adapter toavoid impact of over-voltage injection on the board.Table 1. List of the order codesOrder codeST-LINK description ST-LINK/V2In-circuit debugger/programmer ST-LINK/V2-ISOL In-circuit debugger/programmer with digital isolationProduct contents UM10756/19UM1075 Rev 93 Product contentsThe cables delivered within the product are shown in Figure 2 and Figure 3. They include(from left to right):•USB standard A to Mini-B cable (A)•ST-LINK/V2 debugging and programming (B)•SWIM low-cost connector (C)•SWIM flat ribbon with a standard ERNI connector at one end (D) •JTAG or SWD and SWV flat ribbon with a 20-pin connector (E)Figure 2. ST-LINK/V2 product contentsABC D EUM1075Product contentsFigure 3. ST-LINK/V2-ISOL product contentsAB CDEUM1075 Rev 97/19Hardware configuration UM10758/19UM1075 Rev 94 Hardware configurationThe ST-LINK/V2 is designed around the STM32F103C8 device, which incorporates thehigh-performance Arm ®(a) Cortex ®-M3 core. It is available in a TQFP48 package.As shown in Figure 4, the ST-LINK/V2 provides two connectors:•an STM32 connector for the JTAG/SWD and SWV interface •an STM8 connector for the SWIM interfaceThe ST-LINK/V2-ISOL provides one connector for the STM8 SWIM, STM32 JTAG/SWD,and SWV interfaces.Figure 4. ST-LINK/V2 (on the left) and ST-LINK/V2-ISOL (on the right) connectors1. A = STM32 JTAG and SWD target connector2. B = STM8 SWIM target connector3. C = STM8 SWIM, STM32 JTAG, and SWD target connector4. D = Communication activity LEDa.Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.BA DCDUM1075 Rev 99/19UM1075Hardware configuration4.1 Connection with STM8For the development of applications based on STM8 microcontrollers, the ST-LINK/V2 canbe connected to the target board by two different cables, depending upon the connectoravailable on the application board.These cables are:•a SWIM flat ribbon with a standard ERNI connector at one end • a SWIM cable with two 4-pin, 2.54 mm connectors or SWIM separate-wires cables4.1.1 Standard ERNI connection with SWIM flat ribbonFigure 5 shows how to connect the ST-LINK/V2 if a standard ERNI 4-pin SWIM connector ispresent on the application board.Figure 5. ERNI connector1. A = Target application board with ERNI connector2. B = Wire cable with ERNI connector at one end3. C = STM8 SWIM target connector4.See Figure 11Figure 6 shows that pin 16 is missing on the ST-LINK/V2-ISOL target connector. Thismissing pin is used as a safety key on the cable connector, to guarantee the correct positionof the SWIM cable on the target connector even pins, used for both SWIM and JTAG cables.A BCABCHardware configuration UM107510/19UM1075 Rev 9Figure 6. Key detail on connectors 4.1.2 Low-cost SWIM connectionFigure 7 shows how to connect the ST-LINK/V2 if a 4-pin, 2.54 mm, low-cost SWIM connector is present on the application board.Figure 7. Low-cost connection1. A = Target application board with 4-pin,2.54 mm, low-cost connector2. B = Wire cable with a 4-pin connector or separate-wires cable3. C = STM8 SWIM target connector4.See Figure 124.1.3 SWIM signals and connectionsTable 2 summarizes the signal names, functions, and target connection signals when using the wire cable with a 4-pin connector.AB CA BCUM1075 Rev 911/19UM1075Hardware configurationFigure 8. Target SWIM connectorTable 3 summarizes the signal names, functions, and target connection signals using the separate-wires cable.As the SWIM separate-wires cable has independent connectors for all pins on one side, it is possible to connect the ST-LINK/V2-ISOL to an application board without a standard SWIM connector. On this flat ribbon, all signals are referenced by a specific color and a label to ease the connection on target.TVCC, SWIM, GND, and SWIM-RST can be connected to a low-cost 2.54 mm pitch connector or to pin headers available on the target board.Table 2. SWIM flat ribbon connections for ST-LINK/V2Pin Function Target connection1VDD Target VCC (1)1.The power supply from the application board is connected to the ST-LINK/V2 debugging and programmingboard to ensure signal compatibility between both boards.MCU VCC 2DATA SWIM MCU SWIM pin3GND GROUND GND 4RESETRESETMCU RESET pinTable 3. SWIM low-cost cable connections for ST-LINK/V2-ISOLColor Cable pin nameFunction Target connectionRed TVCC Target VCC (1)1.The power supply from the application board is connected to the ST-LINK/V2 debugging and programmingboard to ensure signal compatibility between both boards.MCU VCCGreen UART-RX Unused Reserved (2)(not connected on the target board)2.BOOT0, UART-TX and UART-RX are reserved for future developments.Blue UART-TX Yellow BOOT0Orange SWIM SWIM MCU SWIM pinBlack GND GROUND GND WhiteSWIM-RSTRESETMCU RESET pinHardware configuration UM107512/19UM1075 Rev 94.2 Connection with STM32For development of applications based on STM32 microcontrollers, the ST-LINK/V2 must be connected to the application using the standard 20-pin JTAG flat ribbon provided.Table 4 summarizes the signals names, functions, and target connection signals of the standard 20-pin JTAG flat ribbon.Table 4. JTAG/SWD cable connectionsPin no.ST-LINK/V2 connector (CN3)ST-LINK/V2function Target connection(JTAG)Target connection(SWD)1VAPP Target VCC MCU VDD (1)1.The power supply from the application board is connected to the ST-LINK/V2 debugging and programmingboard to ensure signal compatibility between the boards.MCU VDD (1)23TRST JTAG TRST JNTRST GND (2)2.Connect to GND for noise reduction on the ribbon.4GND (3)3.Available on ST-LINK/V2 only, not connected on ST-LINK/V2-ISOL.GND (3)GND (3)(4)4.At least one of these pin must be connected to the ground for correct behavior, it is recommended toconnecting all of them.GND (3)(4)5TDI JTAG TDO JTDI GND (2)6GND (3)GND (3)GND (3)(4)GND (3)(4)7TMS_SWDIO JTAG TMS, SW IO JTMS SWDIO 8GND (3)GND (3)GND (3)(4)GND (3)(4)9TCK_SWCLK JTAG TCK, SW CLK JTCK SWCLK 10GND (5)5.GND on ST-LINK/V2, used by SWIM on ST-LINK/V2-ISOL (see Table 3).GND (5)GND (4)(5)GND (4)(5)11Not connected Not connected Not connected Not connected 12GND GNDGND (4)GND (4)13TDO_SWO JTAG TDI, SWO JTDO TRACESWO (6)6.Optional: for Serial Wire Viewer (SWV) trace.14GND (5)GND (5)GND (4)(5)GND (4)(5)15NRST NRST NRST NRST 16GND (3)GND (3)GND (3)(4)GND (3)(4)17 Not connected Not connected Not connected Not connected 18GND GNDGND (4)GND (4)19VDD (3)VDD (3.3 V)(3)Not connected Not connected 20GNDGNDGND (4)GND (4)UM1075 Rev 913/19UM1075Hardware configurationFigure 9 shows how to connect the ST-LINK/V2 to a target using the JTAG cable.Figure 9. JTAG and SWD connection1. A = Target application board with JTAG connector2. B = JTAG/SWD 20-wire flat cable3. C = STM32 JTAG and SWD target connectorThe reference of the connector needed on the target application board is: 2x10C header wrapping 2x40C H3/9.5 (pitch 2.54) - HED20 SCOTT PHSD80.Note:For low cost applications, or when the standard 20-pin 2.54 mm-pitch connector footprint is too big, it is possible to implement the Tag-Connect solution. The Tag-Connect adapter and cable provide a simple and reliable means of connecting ST-LINK/V2 or ST-LINK/V2-ISOL to the PCB without requiring a mating component on the application PCB.ABCABCHardware configurationUM107514/19UM1075 Rev 9For more details on this solution and application-PCB-footprint information, visit .The references of components compatible with JTAG and SWD interfaces are:a) TC2050-ARM2010 adapter (20-pin- to 10-pin-interface board) b) TC2050-IDC or TC2050-IDC-NL (No Legs) (10-pin cable)c) TC2050-CLIP retaining clip for use with TC2050-IDC-NL (optional)4.3 ST-LINK/V2 status LEDThe LED labeled COM on top of the ST-LINK/V2 shows the ST-LINK/V2 status (whatever the connection type). In detail:•LED is blinking RED: the first USB enumeration with the PC is taking place•LED is RED: communication between the PC and ST-LINK/V2 is established (end of enumeration)•LED is blinking GREEN / RED: data are exchanged between the target and the PC •LED is GREEN: the last communication has been successful•LED is ORANGE: ST-LINK/V2 communication with the target has failed.UM1075 Rev 915/19UM1075Software configuration5 Software configuration5.1 ST-LINK/V2 firmware upgradeThe ST-LINK/V2 embeds a firmware upgrade mechanism for in-situ upgrade through theUSB port. As the firmware can evolve during the life of the ST-LINK/V2 product (new functionality, bug fixes, support for new microcontroller families), it is recommended to periodically visit the dedicated pages on to stay up-to-date with the latest version.5.2 STM8 application developmentRefer to ST toolset Pack24 with Patch 1 or more recent, which includes ST Visual Develop (STVD) and ST Visual Programmer (STVP).5.3 STM32 application development and flash programmingThird-party toolchains (IAR ™ EWARM, Keil ® MDK-ARM ™) support ST-LINK/V2 according to the versions given in Table 5 or in the most recent version available.The ST-LINK/V2 requires a dedicated USB driver. If the toolset setup does not install it automatically, the driver can be found on under the name STSW-LINK009.For more information on third-party tools, visit the following websites:• •Table 5. How third-party toolchains support ST-LINK/V2Third party Toolchain Version IAR ™EWARM 6.20Keil ®MDK-ARM ™4.20Schematics UM107516/19UM1075 Rev 96 Schematics1.Legend for pin descriptions:VDD = Target voltage senseDATA = SWIM DATA line between target and debug tool GND = Ground voltageRESET = Target system resetUM1075Schematics1.Legend for pin descriptions:VDD = Target voltage senseDATA = SWIM DATA line between target and debug toolGND = Ground voltageRESET = Target system resetUM1075 Rev 917/19Revision history UM107518/19UM1075 Rev 97 Revision historyTable 6. Document revision historyDate RevisionChanges22-Apr-20111Initial release.03-Jun-20112Table 2: SWIM flat ribbon connections for ST-LINK/V2: addedfootnote 1 to the function “Target VCC”.Table 4: JTAG/SWD cable connections : added footnote to the function “Target VCC”.Table 5: How third-party toolchains support ST-LINK/V2: updated the “Versions” of IAR and Keil.19-Aug-20113Added USB driver details to Section 5.3.11-May-20124Added SWD and SWV to JTAG connection features. Modified Table 4: JTAG/SWD cable connections .13-Sep-20125Added ST-LINK/V2-ISOL order code.Updated Section 4.1: STM8 application development on page 15.Added Note 6 in Table 4.Added Note “For low cost applications...” before Section 3.3: ST-LINK/V2 status LEDs on page 14.18-Oct-20126Added Section 5.1: ST-LINK/V2 firmware upgrade on page 15.25-Mar-20167Updated V RMS value in Introduction and in Features .18-Oct-20188Updated Table 4: JTAG/SWD cable connections and its footnotes.Minor text edits across the whole document.09-Jan-20239Updated Introduction , Features , and Section 5.3: STM32 application development and flash programming .Updated Table 5: How third-party toolchains support ST-LINK/V2.Minor text edits across the whole document.UM1075IMPORTANT NOTICE – READ CAREFULLYSTMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment.Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’ products.No license, express or implied, to any intellectual property right is granted by ST herein.Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to /trademarks. All other product or service names are the property of their respective owners.Information in this document supersedes and replaces information previously supplied in any prior versions of this document.© 2023 STMicroelectronics – All rights reservedUM1075 Rev 919/19。

数据手册STM8S105xx 基础型系列，16MHz STM8S 8位单片机，多达32K字节Flash 集成数据EEPROM，10位ADC，定时器，UART，SPI，I²C芯片特点内核高级STM8内核，具有3级流水线的哈佛结构扩展指令集存储器中等密度程序和数据存储器：─最多32K字节Flash；10K次擦写后在55°C环境下数据可保存20年─数据存储器：多达1K字节真正的数据EEPROM；可达30万次擦写RAM：多达2K字节时钟、复位和电源管理2.95 ~ 5.5V工作电压灵活的时钟控制，4个主时钟源– 低功率晶体振荡器– 外部时钟输入– 用户可调整的内部16MHz RC– 内部低功耗128kHz RC带有时钟监控的时钟安全保障系统电源管理：– 低功耗模式(等待、活跃停机、停机) – 外设的时钟可单独关闭永远打开的低功耗上电和掉电复位中断管理带有32个中断的嵌套中断控制器6个外部中断向量，最多37个外部中断定时器2个16位通用定时器，带有2+3个CAPCOM通道(IC、OC 或 PWM)高级控制定时器：16位，4个CAPCOM 通道，3个互补输出，死区插入和灵活的同步带有8位预分频器的8位基本定时器自动唤醒定时器2个看门狗定时器：窗口看门狗和独立看门狗通信接口带有同步时钟输出的UART ，智能卡，红外IrDA，LIN接口SPI接口最高到8Mbit/sI2C接口最高到400Kbit/s模数转换器(ADC)10位，±1LSB的ADC，最多有10路通道，扫描模式和模拟看门狗功能I/O端口48脚封装芯片上最多有38个I/O，包括16个高吸收电流输出非常强健的I/O设计，对倒灌电流有非常强的承受能力开发支持单线接口模块(SWIM)和调试模块(DM)，可以方便地进行在线编程和非侵入式调试表1产品列表系列型号STM8S105xxSTM8S105K4, STM8S105K6,STM8S105S4, STM8S105S6,STM8S105C4, STM8S105C6本文档英文原文下载地址：/stonline/products/literature/ds/14771.pdf目录1简介 (4)2详细描述 (5)3模块框图 (6)4产品概述 (7)4.1STM8的中央处理单元 (7)4.2单线接口模块(SWIM)和调试模块(DM) (7)4.3中断控制器 (8)4.4Flash程序存储器和数据EEPROM存储器 (8)4.5时钟控制器 (9)4.6电源管理 (9)4.7看门狗定时器 (10)4.8自动唤醒计数器 (10)4.9蜂鸣器 (10)4.10TIM1 — 16位高级控制定时器 (10)4.11TIM2、TIM3 — 16位通用定时器 (10)4.12TIM4 — 8位基本定时器 (11)4.13模数转换器(ADC1) (11)4.14通信接口 (11)4.14.1UART2 (11)4.14.2SPI (12)4.14.3I2C (12)5引脚及其描述 (13)5.1封装引脚 (13)5.1.1备选功能重映射 (19)6存储器和寄存器映像 (20)6.1存储器映像 (20)6.2寄存器映像 (21)7中断向量映像 (28)8选项字节 (29)9电气特性 (32)9.1参数条件 (32)9.1.1最小和最大值 (32)9.1.2典型数值 (32)9.1.3典型曲线 (32)9.1.4典型电流消耗 (32)9.1.5引脚的负载条件 (32)9.1.6负载电容 (32)9.1.7引脚输入电压 (33)9.2绝对最大额定值 (33)9.3工作条件 (34)9.3.1VCAP外部电容 (35)9.3.2供电电流特性 (35)9.3.3外部时钟源和时间特性 (41)9.3.4内部时钟源和时间特性 (43)9.3.5存储器特性 (44)9.3.6I/O端口管脚特性 (45)9.3.7复位管脚特性 (50)9.3.8串行外设接口(SPI) (52)9.3.9I2C接口特性 (54)9.3.1010位ADC特性 (55)9.3.11EMC特性 (57)10封装特性 (60)10.1封装机械数据 (60)10.1.1LQFP封装尺寸 (60)10.1.2VFQFPN封装机械数据 (63)10.1.3SDIP32封装机械数据 (64)10.2热特性 (64)10.2.1参考文档 (65)10.2.2选择产品的温度范围 (65)11订购信息 (66)12STM8开发工具 (本章从略) (67)12.1仿真和在线调试工具 (67)12.2软件工具 (67)12.2.1STM8工具套件 (67)12.2.2C和汇编工具 (67)12.3编程工具 (67)13(英文)版本修改记录 (68)1 简介这本数据手册描述了STM8S105xx基础型系列单片机的特点、引脚分配、电气特性、机械特性和订购信息。

October 2012Doc ID 018748 Rev 61/19UM1075User manualST -LINK/V2 in-circuit debugger/programmerfor STM8 and STM32IntroductionThe ST -LINK/V2 is an in-circuit debugger/programmer for the STM8 and STM32microcontroller families. The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces, facilitate communication with any STM8 or STM32 microcontroller located on an application board.In addition to providing the same functionalities as the ST -LINK/V2, the ST -LINK/V2-ISOL features digital isolation between the PC and the target application board. It also withstands voltages of up to 2500 VRMS.The USB full-speed interface allows communication with a PC and:●STM8 devices via ST Visual Develop (STVD) or ST Visual Program (STVP) software (which are available from STMicroelectronics)●STM32 devices via Atollic, IAR, Keil, and TASKING integrated development environments.Figure 1.ST-LINK/V2 and ST -LINK/V2-ISOLTable 1.Applicable toolsTypePart numberOrder Code DescriptionDevelopmenttoolsST -LINK/V2ST -LINK/V2In-circuit debugger/programmer ST -LINK/V2-ISOLIn-circuit debugger/programmerwith digital isolationST -LINK/V2ST -LINK/V2-ISOLContents UM1075Contents1Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2Product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Hardware configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.1Connection with STM8 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.1.1Standard ERNI connection with SWIM flat ribbon . . . . . . . . . . . . . . . . . . 93.1.2Low-cost SWIM connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103.1.3SWIM signals and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.2Connection with STM32 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.3ST-LINK/V2 status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144Software configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154.1ST-Link/V2 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154.2STM8 application development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154.3STM32 application development and Flash programming . . . . . . . . . . . . 15 5Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182/19Doc ID 018748 Rev 6UM1075List of tables List of tablesTable 1.Applicable tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table 2.SWIM flat ribbon connections for ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 3.SWIM low-cost cable connections for ST-LINK/V2-ISOL. . . . . . . . . . . . . . . . . . . . . . . . . . 11 Table 4.JTAG/SWD cable connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 5.How third party toolchains support ST-LINK/V2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Table 6.Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Doc ID 018748 Rev 63/19List of figures UM1075 List of figuresFigure 1.ST-LINK/V2 and ST-LINK/V2-ISOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2.ST-LINK/V2 product contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3.ST-LINK/V2-ISOL product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4.Connectors of the ST-LINK/V2 and ST-LINK/V2-ISOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 5.ERNI connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 6.Key detail on connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 7.Low-cost connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 8.Target SWIM connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 9.JTAG and SWD connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 10.JTAG debugging flat ribbon layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 11.SWIM ST-LINK/V2 standard ERNI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 12.SWIM ST-LINK/V2 low-cost cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4/19Doc ID 018748 Rev 6UM1075Features1 Features● 5 V power supplied by a USB connector●USB 2.0 full speed compatible interface●USB standard A to mini B cable●SWIM specific features– 1.65 V to 5.5 V application voltage supported on SWIM interface–SWIM low-speed and high-speed modes supported–SWIM programming speed rate: 9.7 Kbytes/s in low speed and 12.8 Kbytes/s in high speed–SWIM cable for connection to the application via an ERNI standard vertical(ref: 284697 or 214017) or horizontal (ref: 214012) connector–SWIM cable for connection to the application via a pin header or a 2.54 mm pitch connector●JTAG/serial wire debugging (SWD) specific features– 1.65 V to 3.6 V application voltage supported on the JT AG/SWD interface and 5 V tolerant inputs–JTAG cable for connection to a standard JTAG 20-pin pitch 2.54 mm connector–Supports JTAG communication–Supports serial wire debug (SWD) and serial wire viewer (SWV) communication●Direct firmware update feature supported (DFU)●Status LED which blinks during communication with the PC●2500 VRMS high isolation voltage (ST-LINK/V2-ISOL only)●Operating temperature 0 to 50 °CDoc ID 018748 Rev 65/19Product contents UM10756/19Doc ID 018748 Rev 62 Product contentsFigures ST -LINK/V2 product contents show the various cables delivered within the product.They include (from left to right in Figure 2 and Figure 3):●USB standard A to mini B cable (A)●ST -LINK/V2 debugging and programming (B)●SWIM low-cost connector (C)●SWIM flat ribbon with a standard ERNI connector at one end (D) ●JTAG or SWD and SWV flat ribbon with a 20-pin connector (E)Figure 2.ST-LINK/V2 product contentsABCDEUM1075Product contentsDoc ID 018748 Rev 67/19Figure 3.ST-LINK/V2-ISOL product contentsABCDEHardware configuration UM10758/19Doc ID 018748 Rev 63 Hardware configurationThe ST -LINK/V2 is designed around the STM32F103C8 device which incorporates the high-performance ARM®, Cortex™-M3 core. It is available in a TQFP48 package. As shown in Figure 4, the ST -LINK/V2 provides two connectors:●an STM32 connector for the JTAG/SWD and SWV interface ●an STM8 connector for the SWIM interfaceThe ST -LINK/V2-ISOL provides one connector for the STM8 SWIM, STM32 JTAG/SWD andSWV interfaces.Figure 4.Connectors of the ST-LINK/V2 and ST-LINK/V2-ISOL1. A = STM32 JTAG and SWD target connector2. B = STM8 SWIM target connector3. C = STM8 SWIM, STM32 JTAG and SWD target connector4. D = Communication activity LED3.1 Connection with STM8 applicationsFor STM8 developments, the ST -LINK/V2 can be connected to the target board by two different cables, depending on the connector available on the application board. These cables are:●SWIM flat ribbon with a standard ERNI connector at one end●SWIM cable with two 4-pin, 2.54 mm connector or SWIM separate-wires cableBA DCDUM1075Hardware configurationDoc ID 018748 Rev 69/193.1.1 Standard ERNI connection with SWIM flat ribbonFigure 5 shows how to connect the ST -LINK/V2 if a standard ERNI 4-pin SWIM connector is present on the application board. Figure 5.ERNI connection1.A = Target application board with ERNI connector 2.B = Wire cable with ERNI connector at one end3. C = STM8 SWIM target connector4.See Figure 11: SWIM ST-LINK/V2 standard ERNI cable .Figure 6 shows that pin 16 is missing on the ST -LINK/V2-ISOL target connector. Thismissing pin is used as a safety key on the cable connector to guarantee connection of the SWIM cable in the correct position on the target connector even pins, used for both SWIM and JTAG cables.Figure 6.Key detail on connectorsABCABCHardware configuration UM107510/19Doc ID 018748 Rev 63.1.2 Low-cost SWIM connectionFigure 7 shows how to connect the ST -LINK/V2 if a 4-pin, 2.54 mm, low-cost SWIMconnector is present on the application board.Figure 7.Low-cost connection1. A = Target application board with 4-pin,2.54 mm, low-cost connector 2. B = Wire cable with a 4-pin connector or separate-wires cable3. C = STM8 SWIM target connector4.See Figure 12: SWIM ST-LINK/V2 low-cost cableA BCABCUM1075Hardware configurationDoc ID 018748 Rev 611/193.1.3 SWIM signals and connectionsTable 2 summarizes the signal names, functions, and target connection signals using thewire cable with a 4-pin connector.Figure 8.Target SWIM connectorTable 3 summarizes the signal names, functions, and target connection signals using the separate-wires cable.As the SWIM separate-wires cable has independent connectors for all pins on one side, it is possible to connect the ST -LINK/V2-ISOL to an application board without a standard SWIM connector. On this flat ribbon, all signals are referenced by a specific color and a label to ease the connection on target.Table 2.SWIM flat ribbon connections for ST-LINK/V2Pin Function Target connection1VDD TargetVCC (1)1.The power supply from the application board is connected to the ST-LINK/V2 debugging and programmingboard to ensure signal compatibility between both boards.MCU VCC 2DA TA SWIM MCU SWIM pin3GND GROUND GND 4RESETRESETMCU RESET pinTable 3.SWIM low-cost cable connections for ST-LINK/V2-ISOLColor Cable pin nameFunction Target connectionRed TVCC Target VCC (1)1.The power supply from the application board is connected to the ST-LINK/V2 debugging and programmingboard to ensure signal compatibility between both boards.MCU VCCGreen UART -RX Unused Reserved (2)(not connected on the target board)2.BOOT0, UART-TX and UART-RX are reserved for future developments.Blue UART -TX Y ellow BOOT0Orange SWIM SWIM MCU SWIM pinBlack GND GROUND GND WhiteSWIM-RSTRESETMCU RESET pinHardware configuration UM107512/19Doc ID 018748 Rev 6TVCC, SWIM, GND and SWIM-RST can be connected to a low-cost 2.54 mm pitch connector or to pin headers available on the target board.3.2 Connection with STM32 applicationsFor STM32 developments, the ST -LINK/V2 needs to be connected to the application using the standard 20-pin JT AG flat ribbon provided.Table 4 summarizes the signals names, functions, and target connection signals of the standard 20-pin JTAG flat ribbon.Table 4.JTAG/SWD cable connectionsPin no.ST-LINK/V2 connector (CN3)ST-LINK/V2 functionTarget connection(JTAG)Target connection(SWD)1VAPP T arget VCC MCU VDD (1)1.The power supply from the application board is connected to the ST-LINK/V2 debugging and programmingboard to ensure signal compatibility between both boards.MCU VDD (1)23TRST JTAG TRST JNTRST GND (2)2.Connect to GND for noise reduction on the ribbon.4GNDGNDGND (3)3.At least one of this pin must be connected to the ground for correct behavior (connecting all of them isrecommended).GND (3)5TDI J TAG TDO J TDI GND (2)6GND GNDGND (3)GND (3)7TMS_SWDIO JTAG TMS, SW IO JTMS SWDIO 8GND GNDGND (3)GND (3)9TCK_SWCLK JTAG TCK, SW CLK JTCK SWCLK 10GND GNDGND (3)GND (3)11NCNot connectedNot connected Not connected 12GND GND GND (3)GND (3)13TDO_SWO JTAG TDI, SWO JTDO TRACESWO (4)4.Optional: for Serial Wire Viewer (SWV) trace.14GND GND GND (3)GND (3)15NRSTNRSTNRSTNRST16GND GND GND (3) GND (3)17 NC Not connected Not connected Not connected 18GND GND GND (3)GND (3)19VDD VDD (3.3V)(5)5.Available on ST-LINK/V2 only and not connected on ST-LINK/V2/OPTO.Not connectedNot connected 20GNDGND GND (3)GND (3)UM1075Hardware configurationDoc ID 018748 Rev 613/19Figure 9 shows how to connect the ST -LINK/V2 to a target using the JTAG cable.Figure 9.JTAG and SWD connection1. A = Target application board with JTAG connector2. B = JTAG/SWD 20-wire flat cable3.C= STM32 JTAG and SWD target connectorThe reference of the connector needed on the target application board is:2x10C header wrapping 2x40C H3/9.5 (pitch 2.54) - HED20 SCOTT PHSD80.Note:For low cost applications or when the standard 20 pins pitch 2.54mm connector footprint is too big, it is possible to implement the Tag-Connect solution to save cost and space on the application board. The Tag-Connect adapter and cable provide a simple reliable means of connecting ST -LINK/V2 or ST -LINK/V2-ISOL to your PCB without requiring a matingABCABCHardware configuration UM107514/19Doc ID 018748 Rev 6component on application PCB. For more details on this solution and application PCB footprint information, please visit .The references of components compatible with JTAG and SWD interfaces are:a) TC2050-ARM2010 adapter (20pins to 10pins interface board) b) TC2050-IDC or TC2050-IDC-NL (No Legs) (10pins cable)c)TC2050-CLIP retaining clip for use with TC2050-IDC-NL (optional)3.3 ST-L INK/V2 status LEDsThe LED labeled ‘COM’ on top of the ST -LINK/V2 shows the ST -LINK/V2 status (whateverthe connection type). When the:●LED is blinking RED: the first USB enumeration with the PC is taking place.●LED is RED: communication between the PC and ST -LINK/V2 is established (end of enumeration).●LED is blinking GREEN/RED: data are being exchanged between the target and the PC.●LED is GREEN: the last communication has been successful.●LED is ORANGE: ST -LINK/V2 communication with the target has failed.UM1075Software configurationDoc ID 018748 Rev 615/194 Software configuration4.1ST-Link/V2 firmware upgradeThe ST -Link/V2 embeds a firmware upgrade mechanism for in-situ upgrade through theUSB port. As the firmware might evolve during the whole life of the ST -Link/V2 product (new functionality, bug fixes, support for new microcontroller families …), it is recommended to visit /stlinkv2 periodically in order to stay up-to-date with the latest firmware version.4.2 STM8 application developmentPlease refer to ST toolset Pack24 with Patch 1 or more recent, which includes ST Visual Develop (STVD) and ST Visual Programmer (STVP).4.3 STM32 application development and Flash programmingThird party toolchains, Atollic TrueSTUDIO, IAR EWARM, Keil MDK-ARM, and TASKING VX-toolset support ST -LINK/V2 according to the versions given in Table 5 or the most recent version available.The ST -LINK/V2 requires a dedicated USB driver. If the toolset installed it automatically, file stlink_winusb.inf is installed in <WINDIR>/inf (where <WINDIR> is typically C:/Windows). If the toolset setup did not install it automatically, the driver can be found on :1.Connect to .2. In the search tab, part number field, look for ST-Link/V2.3.Click on the Generic Part Number column’s hyperlink to ST -Link/V2.4. In the Design support tab, SW drivers section, click on the icon to download st-link_v2_usbdriver.zip.5.Unzip and run ST -Link_V2_USBdriver.exe.For more information on third party tools, please visit:● ● ● ●Table 5.How third party toolchains support ST -LINK/V2Third partyToolchainVersionAtollic TrueSTUDIO 2.1IAR EWARM 6.20Keil MDK-ARM 4.20T ASKINGVX-toolset for ARM Cortex-M4.0.1Schematics UM107516/19Doc ID 018748 Rev 65 Schematics1.Legend for pin descriptions:VDD = Target voltage senseDATA = SWIM DATA line between target and debug tool GND = Ground voltageRESET = Target system resetUM1075SchematicsDoc ID 018748 Rev 617/191.Legend for pin descriptions:VDD = Target voltage senseDATA = SWIM DATA line between target and debug tool GND = Ground voltageRESET = Target system resetRevision history UM107518/19Doc ID 018748 Rev 66 Revision historyTable 6.Document revision historyDate RevisionChanges22-Apr-20111Initial release.03-Jun-20112Table 2: SWIM flat ribbon connections for ST -LINK/V2: addedfootnote 1 to the function “Target VCC”.Table 4: JT AG/SWD cable connections : added footnote to the function “Target VCC”.Table 5: How third party toolchains support ST -LINK/V2: updated the “Versions” of IAR and Keil.19-Aug-20113Added USB driver details to Section 4.3.11-May-20124Added SWD and SWV to JT AG connection features. Modified Table 4: JT AG/SWD cable connections .13-Sep-20125Added ST -LINK/V2-ISOL order code.Updated Section 4.1: STM8 application development on page 15Added Note 5. in T able 4.Added Note “For low cost applications...” before Section 3.3: ST -LINK/V2 status LEDs on page 1418-Oct-20126Added Section 4.1: ST -Link/V2 firmware upgrade on page 15.UM1075Please Read Carefully:Information in this document is provided solely in connection with ST products. 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STM8L中文参考手册（4）-20 16位通用定时器(TIM2、TIM3、tim5)20.1简介本章介绍TIM2、TIM3和tim5是相同的定时器每个定时器包括一个由可编程分频器驱动的16位上下自动重载计数器它可以用于多种目的，包括:●定时产生●测量输入信号的脉冲长度(输入捕获)●产生输出波形(输出比较、脉宽调制和脉冲模式)●各种中断能力事件(捕获、比较、溢出)●与其他定时器或外部信号(外部时钟、复位、触发使能)同步定时器时钟可以来自内部时钟，也可以来自配置寄存器或外部源本章仅介绍通用定时器的主要特性。

它参考了与19:16高级控制定时器(TIM1)相对应的部分中的每个功能的更详细的信息页28320.2 TIMx 主要功能通用TIMx TIM2/TIM3功能包括:●16位向上、向下、向上/向下自动刷新计数器●3位可编程分频器允许将计数器的时钟频率分成1至128的任意2次方两个独立的低电平通道:输入捕获输出比较脉冲宽度调制产生(边沿对齐)-一个脉冲输出模式低电平中断输入，用于复位定时器输出信号，或处于已知状态●输入捕捉2可通过来自comp2比较器:更新的中断和DMA请求产生以下事件:当计数器溢出时，计数器初始化(软件)输入捕捉输出比较中断输入触发事件(开始、停止、内部/外部触发初始化或计数)20.3.1时间单元定时器时基单元包括:●16位可逆计数器时钟源是内部时钟(fsysclk)它由预分频器计数器的时钟ck_cnt驱动，预分频器计数器直接连接到ck_psc时钟馈送分频器分频器的实现如下:7位计数器(在timx_pscr寄存器中)由基于低预分频器的3位寄存器控制它可以控制飞行中寄存器缓冲区的变化。

它可以将计数器的时钟频率转换为1、2、4、8、16、32、64或128计数器的时钟频率计算如下:fCk _ CNT = fck _ PSC/2(PSCR[2:0)计数器操作请参考第19.3.4页:上部288，模式部分19.3.5:在第290页向下计数，模式19.3.6:中心对齐(向上/向下计数)29220.3.2时钟/触发控制器参见第296页第19.4节:TIM1时钟/触发控制器20.3.3采集/比较通道输入级参见第310页第19.5节:TIM1采集/比较通道有两个输入通道，如图122:输入级框图通道2内部连接到比较器输出级参见第19.5.4页:315，输出级19.5.5:强制输出模式在第316页，第19.5.7页:脉宽调制模式在第318页如图124所示。

STM8L中文参考手册-420个16位通用定时器（TIM2，TIM3，tim5）20.1引言本章介绍TIM2，TIM3和tim5是相同的定时器。

每个定时器包括一个16位的升降自动重载计数器由一个可编程分频器驱动。

它可用于多种用途，包括：●时基产生●测量输入信号的脉冲长度（输入捕捉）●生成输出波形（输出比较，脉宽调制和脉冲模式）●中断能力的各种事件（捕获，比较，溢出）●同步与其他计时器或外部信号（外部时钟，复位，触发使）定时器时钟可以来自内部时钟可以通过配置寄存器或从外部源。

只有通用定时器的主要特点是本章中提出的。

指的是部分19:16点先进控制定时器对应的段落（TIM1）对每个功能的更多详细信息页面283。

20.2 TIMx主要特点通用TIMx TIM2 / TIM3功能包括：●16位上，下，上/ downauto刷新计数器。

●3位可编程分频器使计数器的时钟频率可分‖ 飞‖的任何权力，2从1到128。

2个独立的通道●：输入捕捉输出比较PWM生成（边缘对齐方式）-一个脉冲输出的方式●中断输入将定时器的输出信号在复位状态，或在一个已知状态。

●输入捕捉2可以通过从comp2比较器●中断和DMA请求生成下列事件：更新：计数器溢出时，计数器初始化（软件）输入捕捉输出比较中断输入触发事件（计数器的启动，停止，内部/外部触发初始化或计数）20.3.1时间单位计时器时基单元包括：●16位可逆计数器●16位自动重载寄存器●3位可编程分频器没有重复计数器。

时钟源是内部时钟（fsysclk）。

它是直接连接到ck_psc 时钟饲料的预分频器计数器的时钟ck_cnt驱动。

分频器分频器实现如下：●预分频器的基础上通过一个3位寄存器控制的7位计数器（在 timx_pscr寄存器）。

它可以在飞这控制寄存器缓冲的改变。

它可以将计数器的时钟频率的1，2，4，8，16，32，64或128。

计数器的时钟频率计算如下：fck_cnt = fck_psc / 2（PSCR [2:0]）计数器操作请参阅第19.3.4：上数288页，模式部分19.3.5：向下计数在290页和第19.3.6模式：中心对齐方式（向上/向下计数）292页。