mirror of https://github.com/XIVN1987/DAPLink
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107 lines
2.2 KiB
107 lines
2.2 KiB
#include "at32f425.h" |
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#include "usb_core.h" |
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#include "usbd_int.h" |
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#include "DAP.h" |
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#include "vcom_serial.h" |
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#include "hid_transfer.h" |
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/* 在 Option 弹窗的 C/C++ 页中： |
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定义 DAP_FW_V1： 生成 CMSIS-DAP v1 固件，使用 HID 传输协议 |
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不定义 DAP_FW_V1： 生成 CMSIS-DAP v2 固件，使用 WINUSB 传输协议 |
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*/ |
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otg_core_type Otg; |
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void systemInit(void); |
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void USB_Config(void); |
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int main(void) |
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{ |
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systemInit(); |
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DAP_Setup(); |
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VCOM_Init(); |
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USB_Config(); |
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SysTick_Config(SystemCoreClock / 1000); // 1ms interrupt |
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while(1) |
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{ |
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usbd_hid_process(); |
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VCOM_TransferData(); |
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} |
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} |
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void systemInit(void) |
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{ |
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flash_psr_set(FLASH_WAIT_CYCLE_2); |
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crm_pll_config(CRM_PLL_SOURCE_HICK, CRM_PLL_MULT_24); // 4MHz * 24 = 96MHz |
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crm_clock_source_enable(CRM_CLOCK_SOURCE_PLL, TRUE); |
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while(crm_flag_get(CRM_PLL_STABLE_FLAG) != SET) |
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{ |
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} |
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crm_ahb_div_set(CRM_AHB_DIV_1); |
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crm_apb1_div_set(CRM_APB1_DIV_1); |
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crm_apb2_div_set(CRM_APB2_DIV_1); |
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crm_sysclk_switch(CRM_SCLK_PLL); |
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while(crm_sysclk_switch_status_get() != CRM_SCLK_PLL) |
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{ |
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} |
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system_core_clock_update(); |
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} |
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void USB_Config(void) |
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{ |
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crm_periph_clock_enable(CRM_OTGFS1_PERIPH_CLOCK, TRUE); |
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crm_periph_clock_enable(CRM_ACC_PERIPH_CLOCK, TRUE); |
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crm_usb_clock_source_select(CRM_USB_CLOCK_SOURCE_HICK); // => crm_hick_sclk_frequency_select(CRM_HICK_SCLK_48MHZ); |
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// => crm_hick_divider_select(CRM_HICK48_NODIV); |
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/* HICK 模块输出的原始时钟频率为 48MHz，但校准模块使用的采样时钟是除频（1/6）电路输出的时钟，频率约 8MHz */ |
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acc_write_c1(7980); |
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acc_write_c2(8000); |
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acc_write_c3(8020); |
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acc_calibration_mode_enable(ACC_CAL_HICKTRIM, TRUE); |
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extern usbd_desc_handler hid_desc_handler; |
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extern usbd_class_handler hid_class_handler; |
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usbd_init(&Otg, USB_FULL_SPEED_CORE_ID, USB_OTG1_ID, &hid_class_handler, &hid_desc_handler); |
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NVIC_EnableIRQ(OTGFS1_IRQn); |
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} |
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void OTGFS1_IRQHandler(void) |
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{ |
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usbd_irq_handler(&Otg); |
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} |
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volatile uint32_t SysTick_ms = 0; |
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void SysTick_Handler(void) |
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{ |
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SysTick_ms++; |
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} |
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void usb_delay_ms(uint32_t ms) |
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{ |
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uint32_t start = SysTick_ms; |
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while(SysTick_ms - start < ms) __NOP(); |
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}
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