STM8S无法写入TIM2->CCMR

嗨，我刚刚开始使用STM8S003F3P TSSOP20设备进行开发。我一直在研究许多外围设备，这些外设已经很好，但现在遇到了障碍。我正在使用带有Raisonance工具集的STVD。


我要做的是在引脚1和引脚20上获得2个PWM信号，即tiM2_1和TIM2_2。我注意到，当使用固件库时，PWM没有出现，所以我试图做一些不同的实现，似乎没有人能够使PWM运行。因此，在调查配置的地址值（位于基址0x5300）后，我注意到CCMR1和CCMR2根本没有设置。它们位于0x5305和0x5306位置。即使我在指令完成后直接设置值并逐步执行，这些地址的值也保持不变。我认为芯片可能有问题，所以我尝试了几个不同的芯片，结果都是一样的。所以我正式坚持并需要帮助。我想知道是否有人看过这个或知道我做错了什么。

该芯片运行正常，因为在同一设备上，（相同的设置等）我已经能够获得SPI和TIM1上的EncoderMode完美运行。它似乎只是TIM2不会让我正确配置。

我所做的两个示例实现如下....

地址定义：

#define mCCMR1（*（（vu8 *）（0x5305）））
#define mCCMR2（*（（vu8 *）（0x5306）））
#define mCR1（*（（vu8 *）（0x5300）））

然后在主要我有：

TIM2-> PSCR = 0x00;
TIM2-> ARRH = 0x03;
TIM2-> ARRL = 0xE7;

TIM2-> CCR1H = 0x01;
TIM2-> CCR1L = 0xF4;
TIM2-> CCR2H = 0x01;
TIM2-> CCR2L = 0xF4;
TIM2-> CCER1 = 0x33;
mCCMR1 = 0x68;
mCCMR2 = 0x68;
mCR1 = 0x01;


在此版本中，CR1正确设置但CCMR1和CCMR2没有，它们保持为零。

另一个实施是：

TIM2_DeInit（）;
TIM2_TimeBaseInit（TIM2_PRESCALER_1,999）;

//频道1 - IN1
TIM2_OC1Init（TIM2_OCMODE_PWM1，TIM2_OUTPUTSTATE_ENABLE，CCR1_Val，TIM2_OCPOLARITY_LOW）;
TIM2_OC1PreloadConfig（ENABLE）;


//频道2 - IN2
TIM2_OC2Init（TIM2_OCMODE_PWM1，TIM2_OUTPUTSTATE_ENABLE，CCR2_Val，TIM2_OCPOLARITY_LOW）;
TIM2_OC2PreloadConfig（ENABLE）;

TIM2_ARRPreloadConfig（ENABLE）;
TIM2_Cmd（ENABLE）;

并且在此处发生相同的结果，除了CCMR1和CCMR2之外，所有配置寄存器似乎都被适当地写入。

任何输入都会有所帮助，谢谢你提前!!



以下为原文




Hi, I have just recently started developing with the STM8S003F3P TSSOP20 device. I have been working through a number of peripherals, which have gone fine, but have now run into a roadblock. I am using the STVD with Raisonance toolset.


What I am trying to do is get 2 PWM signals on the pins 1 and pin 20, that is TIM2_1 and TIM2_2. I noticed right off the bat that when using the firmware libraries, the PWMs didnt come up, so i tried to do a few different implementations and none seem to be able to make the PWMs go. So after investigating the address values for the configurations (located at base address 0x5300) i noticed that CCMR1 and CCMR2 are not getting set at all. These are at location 0x5305 and 0x5306. Even when i set the values directly and step through, right after the instruction completes, the value at those addresses remain unchanged. I thought the chip might be faulty so i tried it on a few different ones and all the same result. So im officially stuck and need help. I am wondering if anyone has seen this or knows what I am doing wrong.

The chip is functioning correctly because on the same device, (same setup etc) i have been able to get SPI and the EncoderMode on TIM1 functioning perfectly. It just seems to be TIM2 that wont let me configure correctly.  

Two example implementations i have done are as follows....

addresses defined:

#define mCCMR1 (*((vu8 *) (0x5305)))
#define mCCMR2 (*((vu8 *) (0x5306)))
#define mCR1 (*((vu8 *) (0x5300)))

and then in main i have:

TIM2->PSCR = 0x00;
TIM2->ARRH = 0x03;
TIM2->ARRL = 0xE7;
  
TIM2->CCR1H = 0x01;
TIM2->CCR1L = 0xF4;
TIM2->CCR2H = 0x01;
TIM2->CCR2L = 0xF4;
TIM2->CCER1 = 0x33;
mCCMR1 = 0x68;
mCCMR2 = 0x68;
mCR1 = 0x01;


In this version, CR1 gets sets correctly but CCMR1 and CCMR2 do not, they remain at zero.

Another implementation was:

TIM2_DeInit();
TIM2_TimeBaseInit(TIM2_PRESCALER_1, 999);
  
//Channel 1 - IN1
TIM2_OC1Init(TIM2_OCMODE_PWM1, TIM2_OUTPUTSTATE_ENABLE,CCR1_Val, TIM2_OCPOLARITY_LOW);
  TIM2_OC1PreloadConfig(ENABLE);


  //Channel 2 - IN2
  TIM2_OC2Init(TIM2_OCMODE_PWM1, TIM2_OUTPUTSTATE_ENABLE,CCR2_Val, TIM2_OCPOLARITY_LOW);
  TIM2_OC2PreloadConfig(ENABLE);
  
TIM2_ARRPreloadConfig(ENABLE);
TIM2_Cmd(ENABLE);

and the same result happens here, all the configuration registers seem to get written appropriately except for CCMR1 and CCMR2.

Any input at all would be helpful, thank you in advance!!