114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : CH58x_usb2dev.c
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* Author : WCH
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* Version : V1.2
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* Date : 2021/11/17
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* Description
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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 "CH58x_common.h"
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uint8_t *pU2EP0_RAM_Addr;
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uint8_t *pU2EP1_RAM_Addr;
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uint8_t *pU2EP2_RAM_Addr;
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uint8_t *pU2EP3_RAM_Addr;
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/*********************************************************************
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* @fn USB2_DeviceInit
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*
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* @brief USB2设备功能初始化，4个端点，8个通道。
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*
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* @param none
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*
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* @return none
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*/
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void USB2_DeviceInit(void)
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{
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R8_USB2_CTRL = 0x00; // 先设定模式,取消 RB_UC_CLR_ALL
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R8_U2EP4_1_MOD = RB_UEP4_RX_EN | RB_UEP4_TX_EN | RB_UEP1_RX_EN | RB_UEP1_TX_EN; // 端点4 OUT+IN,端点1 OUT+IN
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R8_U2EP2_3_MOD = RB_UEP2_RX_EN | RB_UEP2_TX_EN | RB_UEP3_RX_EN | RB_UEP3_TX_EN; // 端点2 OUT+IN,端点3 OUT+IN
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R16_U2EP0_DMA = (uint16_t)(uint32_t)pU2EP0_RAM_Addr;
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R16_U2EP1_DMA = (uint16_t)(uint32_t)pU2EP1_RAM_Addr;
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R16_U2EP2_DMA = (uint16_t)(uint32_t)pU2EP2_RAM_Addr;
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R16_U2EP3_DMA = (uint16_t)(uint32_t)pU2EP3_RAM_Addr;
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R8_U2EP0_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK;
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R8_U2EP1_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK | RB_UEP_AUTO_TOG;
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R8_U2EP2_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK | RB_UEP_AUTO_TOG;
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R8_U2EP3_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK | RB_UEP_AUTO_TOG;
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R8_U2EP4_CTRL = UEP_R_RES_ACK | UEP_T_RES_NAK;
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R8_USB2_DEV_AD = 0x00;
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R8_USB2_CTRL = RB_UC_DEV_PU_EN | RB_UC_INT_BUSY | RB_UC_DMA_EN; // 启动USB设备及DMA，在中断期间中断标志未清除前自动返回NAK
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R16_PIN_ANALOG_IE |= RB_PIN_USB2_IE | RB_PIN_USB2_DP_PU; // 防止USB端口浮空及上拉电阻
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R8_USB2_INT_FG = 0xFF; // 清中断标志
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R8_U2DEV_CTRL = RB_UD_PD_DIS | RB_UD_PORT_EN; // 允许USB端口
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R8_USB2_INT_EN = RB_UIE_SUSPEND | RB_UIE_BUS_RST | RB_UIE_TRANSFER;
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}
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/*********************************************************************
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* @fn U2DevEP1_IN_Deal
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*
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* @brief U2端点1数据上传
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*
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* @param l - 上传数据长度(<64B)
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*
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* @return none
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*/
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void U2DevEP1_IN_Deal(uint8_t l)
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{
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R8_U2EP1_T_LEN = l;
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R8_U2EP1_CTRL = (R8_U2EP1_CTRL & ~MASK_UEP_T_RES) | UEP_T_RES_ACK;
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}
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/*********************************************************************
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* @fn U2DevEP2_IN_Deal
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*
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* @brief U2端点2数据上传
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*
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* @param l - 上传数据长度(<64B)
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*
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* @return none
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*/
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void U2DevEP2_IN_Deal(uint8_t l)
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{
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R8_U2EP2_T_LEN = l;
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R8_U2EP2_CTRL = (R8_U2EP2_CTRL & ~MASK_UEP_T_RES) | UEP_T_RES_ACK;
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}
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/*********************************************************************
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* @fn U2DevEP3_IN_Deal
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*
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* @brief U2端点3数据上传
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*
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* @param l - 上传数据长度(<64B)
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*
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* @return none
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*/
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void U2DevEP3_IN_Deal(uint8_t l)
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{
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R8_U2EP3_T_LEN = l;
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R8_U2EP3_CTRL = (R8_U2EP3_CTRL & ~MASK_UEP_T_RES) | UEP_T_RES_ACK;
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}
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/*********************************************************************
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* @fn U2DevEP4_IN_Deal
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*
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* @brief U2端点4数据上传
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*
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* @param l - 上传数据长度(<64B)
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*
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* @return none
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*/
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void U2DevEP4_IN_Deal(uint8_t l)
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{
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R8_U2EP4_T_LEN = l;
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R8_U2EP4_CTRL = (R8_U2EP4_CTRL & ~MASK_UEP_T_RES) | UEP_T_RES_ACK;
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}
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