bstanwell/ch32v20x-examples
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This commit is contained in:
qiyongshuang
2026-01-07 10:43:29 +08:00
parent 6209b6e7f9
commit d161f84c90
551 changed files with 23169 additions and 1518 deletions
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EVT/EXAM/IAP/USB_UART/CH32V20x_IAP/CONFIG/hw_config.c
+2 -21
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@@ -56,27 +56,8 @@ void USB_LP_CAN1_RX0_IRQHandler(void)
*/
void Set_USBConfig( )
{
RCC_ClocksTypeDef RCC_ClocksStatus={0};
RCC_GetClocksFreq(&RCC_ClocksStatus);
if( RCC_ClocksStatus.SYSCLK_Frequency == 144000000 )
{
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div3 );
}
else if( RCC_ClocksStatus.SYSCLK_Frequency == 96000000 )
{
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div2 );
}
else if( RCC_ClocksStatus.SYSCLK_Frequency == 48000000 )
{
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div1 );
}
#if defined(CH32V20x_D8W) || defined(CH32V20x_D8)
else if ( RCC_ClocksStatus.SYSCLK_Frequency == 240000000 && RCC_USB5PRE_JUDGE() == SET )
{
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div5 );
}
#endif
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_Div2);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
}
/*******************************************************************************