本帖最后由 zeruns 于 2023-8-24 02:54 编辑
沁恒CH32V307VCT6最小系统板，引出了所有IO口，一个Type-C连接到USB2.0全速OTG接口，一个Flash芯片 型号W25Q64 容量64Mbit 连接到SPI2接口，板上还有TL432电压基准1.25V(实测1.246V左右)可通过跳线连接到PC3的AD13，还有3.29V基准通过0欧电阻可连接到ADC参考电压VREF。
CH32V307VCT6简介
CH32V 系列是基于青稞 32 位 RISC-V 设计的工业级通用微控制器。全系产品加入硬件堆栈区、快速中断入口等设计，相比标准大大提高了中断响应速度。CH32V303_305_307 系列搭载 V4F 内核，支持单精度浮点指令集，具有更高的运算性能。在产品功能上支持 144MHz 主频零等待运行，并根据不同应用方向提供了具有特色的资源结构，例如 8 组 USART/UART 串口，4 组电机定时器，内置 PHY 收发器的USB2.0 高速接口（480Mbps），千兆以太网 MAC 等。
实物图
原理图图中的Type-C接口有点问题，CC1和CC2要用5.1K电阻分别下拉，我并联下拉了会导致使用Emark线时不能正常供电，立创开源平台上的项目已修正。
PCB顶层： TL432的1.25V（实测1.246V左右）电压基准可通过H8插跳线帽接到GPIOPC3的ADC13接口。 SW3是控制BOOT0和1自举引脚的，可以设置自举模式（具体看芯片手册2.5.2的 片上存储器及自举模式），都打到低电平（关闭）就行。 H9排针时用于接WCH-Link烧录代码用的。 H5排针是用于选择VBAT引脚的电源，如果没插电池就通过跳线帽接到3.3V电源，如果插了电池可接到BAT。 底层： 如果不需要外接VDDA电源和VREF要将底面的R11和R7接上0欧电阻，然后VREF+可以通过R8和R9选择接LDO降压出来的3.3V电源或者TL432输出的3.29V参考电压，正常接R9即可 另一个空着。 元件购买地址板上所有元器件都可以在立创商城买到，在开源链接里的BOM表那点立即到立创商城下单可将用到的元器件一键导入到购物车。 例程代码
例程用了 Harmony LiteOS-M 系统，例程中建了3个任务，分别是：LED2间隔500ms闪一下，LED3间隔1秒闪一下，LED4间隔2秒闪一次。（上面的动图速度加快了1.5倍） 工程要用MounRiver Studio软件打开。
main.c的代码： - /*
- * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
- *
- * 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 "debug.h"
- #include "los_tick.h"
- #include "los_task.h"
- #include "los_config.h"
- #include "los_interrupt.h"
- #include "los_debug.h"
- #include "los_compiler.h"
-
- /* Global define */
-
-
- /* Global Variable */
- __attribute__((aligned (8))) UINT8 g_memStart[LOSCFG_SYS_HEAP_SIZE];
- UINT32 g_VlaueSp=0;
-
- u8 i = 0,j=0,k=0;
-
- /*********************************************************************
- * @fn taskSampleEntry3
- *
- * @brief taskSampleEntry3 program.
- *
- * @return none
- */
- VOID taskSampleEntry3(VOID)
- {
- while(1) {
- LOS_TaskDelay(2000);
- printf("taskSampleEntry3 running,task3 SP:%08x\n",__get_SP());
- GPIO_WriteBit(GPIOD, GPIO_Pin_13, (k == 0) ? (k = Bit_SET) : (k = Bit_RESET));
- }
- }
-
-
- /*********************************************************************
- * @fn taskSampleEntry2
- *
- * @brief taskSampleEntry2 program.
- *
- * @return none
- */
- VOID taskSampleEntry2(VOID)
- {
- while(1) {
- LOS_TaskDelay(1000);
- printf("taskSampleEntry2 running,task2 SP:%08x\n",__get_SP());
- GPIO_WriteBit(GPIOD, GPIO_Pin_12, (j == 0) ? (j = Bit_SET) : (j = Bit_RESET));
- }
- }
-
- /*********************************************************************
- * @fn taskSampleEntry1
- *
- * @brief taskSampleEntry1 program.
- *
- * @return none
- */
- VOID taskSampleEntry1(VOID)
- {
- while(1) {
- LOS_TaskDelay(500);
- printf("taskSampleEntry1 running,task1 SP:%08x\n",__get_SP());
- GPIO_WriteBit(GPIOD, GPIO_Pin_11, (i == 0) ? (i = Bit_SET) : (i = Bit_RESET));
- }
-
- }
- // <a href="https://blog.zeruns.tech" target="_blank">https://blog.zeruns.tech</a>
- /*********************************************************************
- * @fn EXTI0_INT_INIT
- *
- * @brief Initializes EXTI0 collection.
- *
- * @return none
- */
- void EXTI0_INT_INIT(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure={0};
- EXTI_InitTypeDef EXTI_InitStructure={0};
- NVIC_InitTypeDef NVIC_InitStructure={0};
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO|RCC_APB2Periph_GPIOA,ENABLE);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- /* GPIOA ----> EXTI_Line0 */
- GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource0);
- EXTI_InitStructure.EXTI_Line=EXTI_Line0;
- EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
- EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
- EXTI_InitStructure.EXTI_LineCmd = ENABLE;
- EXTI_Init(&EXTI_InitStructure);
-
- NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 4;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
- }
-
- void GPIO_INIT(void) {
- GPIO_InitTypeDef GPIO_InitStructure = { 0 };
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12|GPIO_Pin_11|GPIO_Pin_13;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOD, &GPIO_InitStructure);
-
- }
-
- /*********************************************************************
- * @fn taskSample
- *
- * @brief taskSample program.
- *
- * @return none
- */
- UINT32 taskSample(VOID) {
- UINT32 uwRet;
- UINT32 taskID1, taskID2, taskID3;
- TSK_INIT_PARAM_S stTask = { 0 };
- stTask.pfnTaskEntry = (TSK_ENTRY_FUNC) taskSampleEntry1;
- stTask.uwStackSize = 0X500;
- stTask.pcName = "taskSampleEntry1";
- stTask.usTaskPrio = 6;/* 高优先级 */
- uwRet = LOS_TaskCreate(&taskID1, &stTask);
- if (uwRet != LOS_OK) {
- printf("create task1 failed\n");
- }
-
- stTask.pfnTaskEntry = (TSK_ENTRY_FUNC) taskSampleEntry2;
- stTask.uwStackSize = 0X500;
- stTask.pcName = "taskSampleEntry2";
- stTask.usTaskPrio = 7;/* 低优先级 */
- uwRet = LOS_TaskCreate(&taskID2, &stTask);
- if (uwRet != LOS_OK) {
- printf("create task2 failed\n");
- }
-
- stTask.pfnTaskEntry = (TSK_ENTRY_FUNC) taskSampleEntry3;
- stTask.uwStackSize = 0X500;
- stTask.pcName = "taskSampleEntry3";
- stTask.usTaskPrio = 7;/* 低优先级 */
- uwRet = LOS_TaskCreate(&taskID3, &stTask);
- if (uwRet != LOS_OK) {
- printf("create task3 failed\n");
- }
- // <a href="https://blog.vpszj.cn" target="_blank">https://blog.vpszj.cn</a>
- EXTI0_INT_INIT();
- return LOS_OK;
- }
-
- /*********************************************************************
- * @fn main
- *
- * @brief Main program.
- *
- * @return none
- */
- LITE_OS_SEC_TEXT_INIT int main(void)
- {
- unsigned int ret;
-
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
- SystemCoreClockUpdate();
- Delay_Init();
- GPIO_INIT();
- USART_Printf_Init(115200);
-
- printf("SystemClk:%d\r\n",SystemCoreClock);
- printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
-
- ret = LOS_KernelInit();
- taskSample();
- if (ret == LOS_OK)
- {
- LOS_Start();
- }
-
- GPIO_WriteBit(GPIOC, GPIO_Pin_1,RESET);
-
- while (1) {
- __asm volatile("nop");
- }
-
- }
-
-
- /*********************************************************************
- * @fn EXTI0_IRQHandler
- *
- * @brief This function handles EXTI0 Handler.
- *
- * @return none
- */
- void EXTI0_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
- void EXTI0_IRQHandler(void)
- {
- /* 中断栈使用的是原来调用main设置的值，将中断栈和线程栈分开，这样线程跳中断，中断函数如果嵌套深度较大，不至于
- * 线程栈被压满溢出，但是采用当前方式，线程进中断时，编译器保存到的16个caller寄存器任然压入线程栈，如果需要希
- * 望caller寄存器压入中断栈，则中断函数的入口和出口需要使用汇编，中间调用用户中断处理函数即可，详见los_exc.S
- * 中的ipq_entry例子
- * */
- GET_INT_SP();
- HalIntEnter();
- if(EXTI_GetITStatus(EXTI_Line0)!=RESET)
- {
- g_VlaueSp= __get_SP();
- printf("Run at EXTI:");
- printf("interruption sp:%08x\r\n",g_VlaueSp);
- HalDisplayTaskInfo();
- EXTI_ClearITPendingBit(EXTI_Line0); /* Clear Flag */
- }
- HalIntExit();
- FREE_INT_SP();
- }
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发表于 2023-8-24 02:53:11
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