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TrainCamp_fubowen_Modbus
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晶振频率修改

main
the_deepest 1 week ago
parent
7b4b0949cc
commit
171cc958c4
2 changed files with 2 additions and 2 deletions
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  1. +1
    -1
      cmsis/stm32f4xx.h
  2. +1
    -1
      cmsis/system_stm32f4xx.c

+ 1
- 1
cmsis/stm32f4xx.h View File

@@ -97,7 +97,7 @@
*/ */


#if !defined (HSE_VALUE) #if !defined (HSE_VALUE)
#define HSE_VALUE ((uint32_t)25000000) /*!< Value of the External oscillator in Hz */
#define HSE_VALUE ((uint32_t)12000000) /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */ #endif /* HSE_VALUE */


/** /**


+ 1
- 1
cmsis/system_stm32f4xx.c View File

@@ -152,7 +152,7 @@


/************************* PLL Parameters *************************************/ /************************* PLL Parameters *************************************/
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */ /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_M 12
#define PLL_N 336 #define PLL_N 336


/* SYSCLK = PLL_VCO / PLL_P */ /* SYSCLK = PLL_VCO / PLL_P */


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