在rcc里面有这样的定义:
#ifdef STM32F10X_CL
/**
* @brief Configures the I2S2 clock source(I2S2CLK).
* @note
* - This function must be called before enabling I2S2 APB clock.
* - This function applies only to STM32 Connectivity line devices.
* @param RCC_I2S2CLKSource: specifies the I2S2 clock source.
* This parameter can be one of the following values:
* @arg RCC_I2S2CLKSource_SYSCLK: system clock selected as I2S2 clock entry
* @arg RCC_I2S2CLKSource_PLL3_VCO: PLL3 VCO clock selected as I2S2 clock entry
* @retval None
*/
void RCC_I2S2CLKConfig(uint32_t RCC_I2S2CLKSource)
{
/* Check the parameters */
assert_param(IS_RCC_I2S2CLK_SOURCE(RCC_I2S2CLKSource));
但是我在main函数想要调用这个RCC_I2S2CLKConfig()函数去配置I2S的时钟,编译出现了:..\OBJ\SPI.axf: Error: L6218E: Undefined symbol RCC_I2SCLKConfig (referred from main.o).这个问题,想问问原子哥这是什么情况