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Error when build project

quy huy

Hi everybody !
When I buid my project in Keil Arm ver.4 , there are some warnings and errors :

stm32f4xx_gpio.c(130): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
stm32f4xx_rcc.c(266): warning: #223-D: function "assert_param" declared implicitly assert_param(IS_RCC_HSE(RCC_HSE));

stm32f4xx_rcc.c(2106): error: #20: identifier "RCC_BDCR_LSEMOD" is undefined SET_BIT(RCC->BDCR, RCC_BDCR_LSEMOD);

I included files :
#include <stm32f4xx.h>
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_rcc.h"

So what is the reason making those ? And how can i resolve the problem ?
Thank you !

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