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2023-05-18 18:53:00 +08:00
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68
NSPE/Example/USBFS/usb_device/cdc_acm/src/app.c Normal file
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/*!
\file app.c
\brief main routine
\version 2021-10-30, V1.0.0, firmware for GD32W51x
*/
/*
Copyright (c) 2021, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "drv_usb_hw.h"
#include "cdc_acm_core.h"
usb_core_driver cdc_acm;
/*!
\brief main routine will construct a USB virtual ComPort device
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
usb_gpio_config();
usb_rcu_config();
usb_timer_init();
usbd_init (&cdc_acm, &cdc_desc, &cdc_class);
usb_intr_config();
/* main loop */
while (1) {
if (USBD_CONFIGURED == cdc_acm.dev.cur_status) {
if (0U == cdc_acm_check_ready(&cdc_acm)) {
cdc_acm_data_receive(&cdc_acm);
} else {
cdc_acm_data_send(&cdc_acm);
}
}
}
}

229
NSPE/Example/USBFS/usb_device/cdc_acm/src/gd32w51x_hw.c Normal file
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/*!
\file gd32w51x_hw.c
\brief USB hardware configuration for GD32W51x
\version 2021-10-30, V1.0.0, firmware for GD32W51x
*/
/*
Copyright (c) 2021, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "drv_usb_hw.h"
#define TIM_MSEC_DELAY 0x01U
#define TIM_USEC_DELAY 0x02U
__IO uint32_t delay_time = 0U;
__IO uint16_t timer_prescaler = 5U;
uint32_t usb_prescaler = 0U;
/* local function prototypes ('static') */
static void hw_time_set (uint8_t unit);
static void hw_delay (uint32_t ntime, uint8_t unit);
/*!
\brief configure USB data line gpio
\param[in] none
\param[out] none
\retval none
*/
void usb_gpio_config(void)
{
rcu_periph_clock_enable(RCU_SYSCFG);
rcu_periph_clock_enable(RCU_GPIOB);
/* USBFS_DM(PB12) and USBFS_DP(PB13) GPIO pin configuration */
gpio_mode_set(GPIOB, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_12 | GPIO_PIN_13);
gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_166MHZ, GPIO_PIN_12 | GPIO_PIN_13);
gpio_af_set(GPIOB, GPIO_AF_10, GPIO_PIN_12 | GPIO_PIN_13);
}
/*!
\brief configure USB clock
\param[in] none
\param[out] none
\retval none
*/
void usb_rcu_config(void)
{
rcu_usbfs_clock_config(RCU_USBFSSRC_PLL);
rcu_usbfs_div_config(RCU_USBFS_DIV7);
// rcu_usbfs_div_config(RCU_USBFS_DIV5);
// rcu_plldig_config(RCU_PLLDIG_240M);
// PMU_CTL1 |= PMU_CTL1_WLPEN;
// RCU_APB2EN |= RCU_APB2EN_RFEN;
// rcu_bandgap_poweron();
// RCU_CTL |= RCU_CTL_PLLDIGPU;
// RCU_CTL |= RCU_CTL_PLLDIGEN;
// rcu_usbfs_clock_config(RCU_USBFSSRC_PLLDIG);
rcu_periph_clock_enable(RCU_USBFS);
}
/*!
\brief configure USB interrupt
\param[in] none
\param[out] none
\retval none
*/
void usb_intr_config(void)
{
nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2);
nvic_irq_enable((uint8_t)USBFS_IRQn, 2U, 0U);
/* enable the power module clock */
rcu_periph_clock_enable(RCU_PMU);
/* USB wakeup EXTI line configuration */
exti_interrupt_flag_clear(EXTI_18);
exti_init(EXTI_18, EXTI_INTERRUPT, EXTI_TRIG_RISING);
exti_interrupt_enable(EXTI_18);
nvic_irq_enable((uint8_t)USBFS_WKUP_IRQn, 1U, 0U);
}
/*!
\brief initializes delay unit using Timer2
\param[in] none
\param[out] none
\retval none
*/
void usb_timer_init (void)
{
/* configure the priority group to 2 bits */
nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2);
/* enable the TIM2 global interrupt */
nvic_irq_enable((uint8_t)TIMER2_IRQn, 1U, 0U);
rcu_periph_clock_enable(RCU_TIMER2);
}
/*!
\brief delay in micro seconds
\param[in] usec: value of delay required in micro seconds
\param[out] none
\retval none
*/
void usb_udelay (const uint32_t usec)
{
hw_delay(usec, TIM_USEC_DELAY);
}
/*!
\brief delay in milliseconds
\param[in] msec: value of delay required in milliseconds
\param[out] none
\retval none
*/
void usb_mdelay (const uint32_t msec)
{
hw_delay(msec, TIM_MSEC_DELAY);
}
/*!
\brief time base IRQ
\param[in] none
\param[out] none
\retval none
*/
void usb_timer_irq (void)
{
if (RESET != timer_interrupt_flag_get(TIMER2, TIMER_INT_UP)){
timer_interrupt_flag_clear(TIMER2, TIMER_INT_UP);
if (delay_time > 0x00U){
delay_time--;
} else {
timer_disable(TIMER2);
}
}
}
/*!
\brief delay routine based on TIMER2
\param[in] nTime: delay time
\param[in] unit: delay Time unit = milliseconds / microseconds
\param[out] none
\retval none
*/
static void hw_delay(uint32_t ntime, uint8_t unit)
{
delay_time = ntime;
hw_time_set(unit);
while (0U != delay_time) {
}
timer_disable(TIMER2);
}
/*!
\brief configures TIMER2 for delay routine based on TIMER2
\param[in] unit: msec /usec
\param[out] none
\retval none
*/
static void hw_time_set(uint8_t unit)
{
timer_parameter_struct timer_basestructure;
timer_disable(TIMER2);
timer_interrupt_disable(TIMER2, TIMER_INT_UP);
if (TIM_USEC_DELAY == unit) {
timer_basestructure.period = 6U;
} else if(TIM_MSEC_DELAY == unit) {
timer_basestructure.period = 6999U;
} else {
/* no operation */
}
timer_basestructure.prescaler = timer_prescaler;
timer_basestructure.alignedmode = TIMER_COUNTER_EDGE;
timer_basestructure.counterdirection = TIMER_COUNTER_UP;
timer_basestructure.clockdivision = TIMER_CKDIV_DIV1;
timer_basestructure.repetitioncounter = 0U;
timer_init(TIMER2, &timer_basestructure);
timer_interrupt_flag_clear(TIMER2, TIMER_INT_UP);
timer_auto_reload_shadow_enable(TIMER2);
/* TIMER IT enable */
timer_interrupt_enable(TIMER2, TIMER_INT_UP);
/* TIMER2 enable counter */
timer_enable(TIMER2);
}

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NSPE/Example/USBFS/usb_device/cdc_acm/src/gd32w51x_it.c Normal file
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/*!
\file gd32w51x_it.c
\brief main interrupt service routines
\version 2021-10-30, V1.0.0, firmware for GD32W51x
*/
/*
Copyright (c) 2021, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
#include "gd32w51x_it.h"
#include "drv_usbd_int.h"
extern usb_core_driver cdc_acm;
extern uint32_t usb_prescaler;
void usb_timer_irq (void);
/* local function prototypes ('static') */
static void resume_mcu_clk(void);
/*!
\brief this function handles NMI exception
\param[in] none
\param[out] none
\retval none
*/
void NMI_Handler(void)
{
}
/*!
\brief this function handles HardFault exception
\param[in] none
\param[out] none
\retval none
*/
void HardFault_Handler(void)
{
/* if Hard Fault exception occurs, go to infinite loop */
while (1){
}
}
/*!
\brief this function handles MemManage exception
\param[in] none
\param[out] none
\retval none
*/
void MemManage_Handler(void)
{
/* if Memory Manage exception occurs, go to infinite loop */
while (1){
}
}
/*!
\brief this function handles BusFault exception
\param[in] none
\param[out] none
\retval none
*/
void BusFault_Handler(void)
{
/* if Bus Fault exception occurs, go to infinite loop */
while (1){
}
}
/*!
\brief this function handles UsageFault exception
\param[in] none
\param[out] none
\retval none
*/
void UsageFault_Handler(void)
{
/* if Usage Fault exception occurs, go to infinite loop */
while (1){
}
}
/*!
\brief this function handles SVC exception
\param[in] none
\param[out] none
\retval none
*/
void SVC_Handler(void)
{
}
/*!
\brief this function handles DebugMon exception
\param[in] none
\param[out] none
\retval none
*/
void DebugMon_Handler(void)
{
}
/*!
\brief this function handles PendSV exception
\param[in] none
\param[out] none
\retval none
*/
void PendSV_Handler(void)
{
}
/*!
\brief this function handles SysTick exception
\param[in] none
\param[out] none
\retval none
*/
void SysTick_Handler(void)
{
}
/*!
\brief this function handles USBFS interrupt
\param[in] none
\param[out] none
\retval none
*/
void USBFS_IRQHandler (void)
{
usbd_isr (&cdc_acm);
}
/*!
\brief this function handles USBFS wakeup interrupt request.
\param[in] none
\param[out] none
\retval none
*/
void USBFS_WKUP_IRQHandler(void)
{
if (cdc_acm.bp.low_power) {
resume_mcu_clk();
rcu_periph_clock_enable(RCU_USBFS);
usb_clock_active(&cdc_acm);
}
exti_interrupt_flag_clear(EXTI_18);
}
/*!
\brief this function handles Timer2 update interrupt request.
\param[in] none
\param[out] none
\retval none
*/
void TIMER2_IRQHandler(void)
{
usb_timer_irq();
}
/*!
\brief resume mcu clock
\param[in] none
\param[out] none
\retval none
*/
static void resume_mcu_clk(void)
{
/* enable HSE */
rcu_osci_on(RCU_HXTAL);
/* wait till HSE is ready */
while(RESET == rcu_flag_get(RCU_FLAG_HXTALSTB)){
}
/* enable PLL */
rcu_osci_on(RCU_PLL_CK);
/* wait till PLL is ready */
while(RESET == rcu_flag_get(RCU_FLAG_PLLSTB)){
}
/* select PLL as system clock source */
rcu_system_clock_source_config(RCU_CKSYSSRC_PLLP);
/* wait till PLL is used as system clock source */
while(RCU_SCSS_PLLP != rcu_system_clock_source_get()){
}
}

1071
NSPE/Example/USBFS/usb_device/cdc_acm/src/system_gd32w51x.c Normal file
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