52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
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#include "hdl_usb.h"
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static void USB_IRQ_Handler(void)
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{
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extern void USBD_IRQHandler(uint8_t busid);
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USBD_IRQHandler(0);
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}
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void hdl_usb_init(void)
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{
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stc_clock_pllx_init_t stcUpllInit;
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stc_gpio_init_t stcGpioCfg;
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stc_irq_signin_config_t stcIrqRegiConf;
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LL_PERIPH_WE(LL_PERIPH_EFM | LL_PERIPH_FCG | LL_PERIPH_GPIO | LL_PERIPH_PWC_CLK_RMU | LL_PERIPH_SRAM);
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/* 时钟配置 */
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(void)CLK_PLLxStructInit(&stcUpllInit);
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stcUpllInit.u8PLLState = CLK_PLLX_ON;
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stcUpllInit.PLLCFGR = 0UL;
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stcUpllInit.PLLCFGR_f.PLLM = (4UL - 1UL);
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stcUpllInit.PLLCFGR_f.PLLN = (84UL - 1UL);
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stcUpllInit.PLLCFGR_f.PLLR = (7UL - 1UL);
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stcUpllInit.PLLCFGR_f.PLLQ = (7UL - 1UL);
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stcUpllInit.PLLCFGR_f.PLLP = (7UL - 1UL); //48M
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(void)CLK_PLLxInit(&stcUpllInit);
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CLK_SetUSBClockSrc(CLK_USBCLK_PLLXP);
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/* 引脚配置 */
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(void)GPIO_StructInit(&stcGpioCfg);
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stcGpioCfg.u16PinAttr = PIN_ATTR_ANALOG;
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(void)GPIO_Init(USB_DM_PORT, USB_DM_PIN, &stcGpioCfg);
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(void)GPIO_Init(USB_DP_PORT, USB_DP_PIN, &stcGpioCfg);
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// GPIO_SetFunc(USB_DM_PORT, USB_DM_PIN, GPIO_FUNC_10);
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// GPIO_SetFunc(USB_DP_PORT, USB_DP_PIN, GPIO_FUNC_10);
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// GPIO_SetFunc(USB_VBUS_PORT, USB_VBUS_PIN, GPIO_FUNC_10); /* VBUS */
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FCG_Fcg1PeriphClockCmd(FCG1_PERIPH_USBFS, ENABLE);
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/* 中断配置 */
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stcIrqRegiConf.enIRQn = INT030_IRQn;
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stcIrqRegiConf.enIntSrc = INT_SRC_USBFS_GLB;
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stcIrqRegiConf.pfnCallback = &USB_IRQ_Handler; // 添加中断函数
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(void)INTC_IrqSignIn(&stcIrqRegiConf);
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NVIC_ClearPendingIRQ(stcIrqRegiConf.enIRQn);
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NVIC_SetPriority(stcIrqRegiConf.enIRQn, DDL_IRQ_PRIO_15);
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NVIC_EnableIRQ(stcIrqRegiConf.enIRQn);
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LL_PERIPH_WP(LL_PERIPH_EFM | LL_PERIPH_FCG | LL_PERIPH_SRAM);
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}
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