163 lines
4.5 KiB
C
163 lines
4.5 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : hw_config.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2021/08/08
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* Description : USB configuration file.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#include "hw_config.h"
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "../driver/inc/usb_lib.h"
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#include "usb_desc.h"
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#include "usb_istr.h"
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#include "usb_prop.h"
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#include "usb_pwr.h"
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void USBWakeUp_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void USB_LP_CAN1_RX0_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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/*******************************************************************************
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* @fn USBWakeUp_IRQHandler
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*
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* @brief This function handles USB wake up exception.
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*
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* @return None
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*/
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void USBWakeUp_IRQHandler(void)
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{
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EXTI_ClearITPendingBit(EXTI_Line18);
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}
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/*******************************************************************************
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* @fn USB_LP_CAN1_RX0_IRQHandler
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*
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* @brief This function handles USB exception.
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*
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* @return None
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*/
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void USB_LP_CAN1_RX0_IRQHandler(void)
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{
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USB_Istr();
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}
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/*******************************************************************************
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* @fn Set_USBConfig
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*
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* @brief Set_USBConfig .
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*
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* @return None
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*/
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void usb_conf_clksource(void)
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{
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switch (SystemCoreClock) {
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case 144000000: RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div3 ); break;
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case 96000000: RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div2 ); break;
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case 48000000: RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div1 ); break;
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}
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
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}
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/*******************************************************************************
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* @fn Enter_LowPowerMode
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*
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* @brief Enter low power mode.
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*
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* @return None
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*/
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void Enter_LowPowerMode(void)
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{
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printf("usb enter low power mode\r\n");
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bDeviceState = SUSPENDED;
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}
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/*******************************************************************************
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* @fn Leave_LowPowerMode
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*
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* @brief Leave low power mode.
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*
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* @return None
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*/
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void Leave_LowPowerMode(void)
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{
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DEVICE_INFO *pInfo = &Device_Info;
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printf("usb leave low power mode\r\n");
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if (pInfo->Current_Configuration != 0)
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bDeviceState = CONFIGURED;
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else
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bDeviceState = ATTACHED;
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}
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/*******************************************************************************
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* @fn USB_Interrupts_Config
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*
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* @brief Configrate USB interrupt.
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*
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* @return None
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*/
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void usb_intr_init(void)
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{
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NVIC_InitTypeDef NVIC_InitStructure;
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EXTI_InitTypeDef EXTI_InitStructure;
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EXTI_ClearITPendingBit(EXTI_Line18);
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EXTI_InitStructure.EXTI_Line = EXTI_Line18;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_Init(&EXTI_InitStructure);
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NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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NVIC_Init(&NVIC_InitStructure);
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}
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/*******************************************************************************
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* @fn USB_Port_Set
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*
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* @brief Set USB IO port.
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*
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* @param NewState: DISABLE or ENABLE.
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* Pin_In_IPU: Enables or Disables intenal pull-up resistance.
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*
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* @return None
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*/
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void USB_Port_Set(FunctionalState NewState, FunctionalState Pin_In_IPU)
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{
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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if (NewState) {
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_SetCNTR(_GetCNTR()&(~(1<<1)));
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GPIOA->CFGHR&=0XFFF00FFF;
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GPIOA->OUTDR&=~(3<<11); //PA11/12=0
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GPIOA->CFGHR|=0X00044000; //float
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} else {
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_SetCNTR(_GetCNTR()|(1<<1));
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GPIOA->CFGHR&=0XFFF00FFF;
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GPIOA->OUTDR&=~(3<<11); //PA11/12=0
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GPIOA->CFGHR|=0X00033000; // LOW
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}
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if(Pin_In_IPU) (EXTEN->EXTEN_CTR) |= EXTEN_USBD_PU_EN;
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else (EXTEN->EXTEN_CTR) &= ~EXTEN_USBD_PU_EN;
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}
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