本帖最后由 eddy836 于 2009-10-5 13:43 编辑
九九的STM32笔记中写到：FWLib固件库目前的最新版应该是V2.0.x，V1.0.x版本固件库中，TIM1模块被独立出来，调用的函数与其他定时器不同；在V2.0系列版本中，取消了TIM1.h，所有的TIM模块统一调用TIM.h即可。网络上流传的各种代码有许多是基于v1版本的固件库，在移植到v2版本固件库时，需要做些修改。
当然现在最新的FWlib固件库是3.1.2的，先不说这个版本的。一直用的是V2.0的版本，也一直参考着据说是V2.0的中文手册（UM0427《32位基于 ARM 微控制器 STM32F101xx 与 STM32F103xx 固件函数库》）。但这两天发现问题了，原因是在调试TIM的时候发现例程中的函数TIM_OC1Init竟然在该 用户手册中找不到，有点纳闷，用了一个多月的手册难道是1.0版本的？？？
带着这样的疑问，我找到如下资料：
AN2776（《How to migrate from STM32F10xxx FWLib V1.0 to V2.0》），在2.2.2节中写道：
In FWLib V1.0 the timer peripherals are covered by two drivers:
● stm32f10x_tim.c/stm32f10x_tim.h: they cover the functionality of general-purpose timers (TIM2, TIM3 and TIM4). The function format in this driver is as follows:
TIM_FunctionName(TIMx, param1, param2,...)
e.g.: TIM_ITConfig(TIM_TypeDef* TIMx, u16 TIM_IT, FunctionalState NewState)
●stm32f10x_tim1.c/stm32f10x_tim1.h: they cover the functionality of the advanced-control timer (TIM1). This driver provides the same set of functions as stm32f10x_tim.c/stm32f10x_tim.h plus dedicated functions to cover addtional TIM1 features (PWMI mode, complementary PWM with dead-time insertion, etc.). The function format in this driver is as follows:
TIM1_FunctionName(param1, param2,...)
e.g.: TIM1_ITConfig(u16 TIM1_IT, FunctionalState NewState)
In FWLib V2.0, these two drivers have been merged into a single driver, stm32f10x_tim.c/stm32f10x_tim.h, that covers all the timers available in High-
density and Medium-density devices: general-purpose timers (TIM2, TIM3, TIM4 and TIM5), advanced-control timers (TIM1 and TIM8) and basic timers (TIM6&7).This change affects only application code based on the stm32f10x_tim1.c/stm32f10x_tim1.h driver. The set of functions for TIM1 are the same but the name is different. In the function name, “TIM1” was changed to “TIM” and a new parameter was added to specify the timer to be configured.
这么看来的确和九九说的一样，但是UM0427(再说下该文档标题，《STM32F10xxx_Library_Manual_ChineseV2.pdf》)，一个是ST版本的，另一个是MXCHIP版本的，这两个版本中都没有出现例如TIM_OC1Init函数。所以我敢肯定这两个绝对不是V2版本的中文手册。于是再找到STM32F10x_FW_Archive，发现这才是真正V2.0的英文版本，**中已明显删去关于TIM1的任何东西，全部以TIM替换！
话说到这里，也不能怪别人，只怪自己太相信中文手册了，说手册是2.0就信以为是2.0。但是作为一个初探STM32的人，一切冠以ST或者MXCHIP的文档都仿佛是权威的象征，究竟是哪个天杀的把文档标题改成_ChineseV2的，还是官方出来的文档就是这样子的，去这两家的官网找不到文档已无从考证！ 如果是前者还好说，但如果是后者，这样的错误总不能让我从文档底角下那行纤细的小字“译文仅供参考，与英文版冲突的，以英文版为准”来给予原谅的理由吧？
小弟刚接触STM32，不知道是不是把问题表达清楚了，不吝赐教。
最后附上FWLib v2.0下的TIM下OCToggle例程一部分代码：
TIM下OCToggle例程FWLib V2.0 版本TIM2初始化部分
/* ---------------------------------------------------------------
TIM2 Configuration: Output Compare Toggle Mode:
TIM2CLK = 36 MHz, Prescaler = 0x2, TIM2 counter clock = 12 MHz
CC1 update rate = TIM2 counter clock / CCR1_Val = 366.2 Hz
CC2 update rate = TIM2 counter clock / CCR2_Val = 732.4 Hz
CC3 update rate = TIM2 counter clock / CCR3_Val = 1464.8 Hz
CC4 update rate = TIM2 counter clock / CCR4_Val = 2929.6 Hz
--------------------------------------------------------------- */
/* Time base configuration */
TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
TIM_TimeBaseStructure.TIM_Prescaler = 0x02;
TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
/* Output Compare Toggle Mode configuration: Channel1 */
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Toggle;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 2047;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OC1Init(TIM2, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1023;
TIM_OC2Init(TIM2, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 511;
TIM_OC3Init(TIM2, &TIM_OCInitStructure);
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 255;
TIM_OC4Init(TIM2, &TIM_OCInitStructure);
/* TIM enable counter */
TIM_Cmd(TIM2, ENABLE);
/* TIM IT enable */
TIM_ITConfig(TIM2, TIM_IT_CC1 | TIM_IT_CC2 | TIM_IT_CC3 | TIM_IT_CC4, ENABLE); |
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