268 lines
7.2 KiB
C
268 lines
7.2 KiB
C
/**
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* @file cw32l012_startkit.c
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* @author WHXY
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* @brief
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* @version 0.1
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* @date 2024-08-07
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*
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* @copyright Copyright (c) 2021
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*
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*/
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/*******************************************************************************
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*
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* 代码许可和免责信息
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* 武汉芯源半导体有限公司授予您使用所有编程代码示例的非专属的版权许可，您可以由此
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* 生成根据您的特定需要而定制的相似功能。根据不能被排除的任何法定保证，武汉芯源半
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* 导体有限公司及其程序开发商和供应商对程序或技术支持（如果有）不提供任何明示或暗
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* 含的保证或条件，包括但不限于暗含的有关适销性、适用于某种特定用途和非侵权的保证
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* 或条件。
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* 无论何种情形，武汉芯源半导体有限公司及其程序开发商或供应商均不对下列各项负责，
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* 即使被告知其发生的可能性时，也是如此：数据的丢失或损坏；直接的、特别的、附带的
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* 或间接的损害，或任何后果性经济损害；或利润、业务、收入、商誉或预期可节省金额的
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* 损失。
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* 某些司法辖区不允许对直接的、附带的或后果性的损害有任何的排除或限制，因此某些或
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* 全部上述排除或限制可能并不适用于您。
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*
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*******************************************************************************/
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/******************************************************************************
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* Include files
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******************************************************************************/
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#include "cw32l012_startkit.h"
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KEY_TypeDef KEY1 = {.Port = BSP_KEY1_PORT, .Pin = BSP_KEY1_PIN};
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KEY_TypeDef KEY2 = {.Port = BSP_KEY2_PORT, .Pin = BSP_KEY2_PIN};
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LED_TypeDef LED1 = {.Port = BSP_LED1_PORT, .Pin = BSP_LED1_PIN};
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LED_TypeDef LED2 = {.Port = BSP_LED2_PORT, .Pin = BSP_LED2_PIN};
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/*******************************************************************************
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* @brief 用于支持Printf打印的函数，
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* @retval None
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* @note 需要使用microlib库
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*/
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#if (__ARMCC_VERSION > 6000000)
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__asm (".global __use_no_semihosting\n\t");
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void _sys_exit(int x)
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{
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x = x;
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}
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/* __use_no_semihosting was requested, but _ttywrch was */
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void _ttywrch(int ch)
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{
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ch = ch;
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}
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FILE __stdout;
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#else
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#ifdef __CC_ARM
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#pragma import(__use_no_semihosting)
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struct __FILE
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{
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int handle;
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};
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FILE __stdout;
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void _sys_exit(int x)
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{
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x = x;
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}
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/* __use_no_semihosting was requested, but _ttywrch was */
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void _ttywrch(int ch)
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{
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ch = ch;
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}
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#endif
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#endif
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// 检测 IAR 版本
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#if defined(__IAR_SYSTEMS_ICC__) && (__VER__ >= 9000000)
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// IAR 9.x 版本
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#define IAR_VERSION 9
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#elif defined(__IAR_SYSTEMS_ICC__) && (__VER__ >= 8000000)
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// IAR 8.x 版本
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#define IAR_VERSION 8
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#endif
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#if defined (__GNUC__) && !defined (__clang__)
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#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
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#else
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#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
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#endif
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// 发送单个字符
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void UART_SendChar(char ch)
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{
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while ((BSP_UART->ISR & UARTx_ISR_TXBUSY_Msk) == UARTx_ISR_TXBUSY_Msk); // 等待发送完成
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BSP_UART->TDR = ch; // 发送字符
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}
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/*******************************************************************************
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* @brief 重定向C库中Printf函数到UART.
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* @retval None
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* @note None
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*/
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__weak PUTCHAR_PROTOTYPE
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{
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UART_SendChar((char)ch);
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return ch;
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}
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// IAR 9.x 使用 __write 重定向
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#if IAR_VERSION == 9
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size_t __write(int handle, const unsigned char *buffer, size_t size)
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{
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for (size_t i = 0; i < size; i++)
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{
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UART_SendChar(buffer[i]);
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}
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return size;
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}
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#endif
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/*******************************************************************************
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* @brief 板载UART打印初始化
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* @param pclkFreq: pclk freq
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* @param baudRate: uart baudrate
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* @retval none
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* @note
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*/
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void Bsp_Uart_Init(uint32_t pclkFreq, uint32_t baudRate)
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{
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uint32_t BRR;
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/* configure the uart txd pin */
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BSP_UART_TXD_PORT_PERIPH_CLK_ENABLE();
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BSP_UART_TXD_AF();
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BSP_UART_TXD_PORT->ANALOG &= ~(BSP_UART_TXD_PIN);
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/* configure the uart rxd pin */
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BSP_UART_RXD_PORT_PERIPH_CLK_ENABLE();
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BSP_UART_RXD_AF();
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BSP_UART_RXD_PORT->ANALOG &= ~(BSP_UART_RXD_PIN);
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/* configure uart */
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BSP_UART_PERIPH_CLK_ENABLE();
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BSP_UART_PERIPH_RST_ENABLE();
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BSP_UART_PERIPH_RST_DISABLE();
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BRR = (pclkFreq + (baudRate >> 1) )/ baudRate; // 加0.5倍的baudRate，相对于4舍5入
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BSP_UART->BRRI = BRR >> 4;
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BSP_UART->BRRF = BRR % 16;
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BSP_UART->CR1 = UARTx_CR1_TXEN_Msk | UARTx_CR1_RXEN_Msk;
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}
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void Bsp_Uart_Closed(void)
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{
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BSP_UART_PERIPH_CLK_DISABLE();
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BSP_UART_TXD_PORT->ANALOG |= (BSP_UART_TXD_PIN);
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BSP_UART_RXD_PORT->ANALOG |= (BSP_UART_RXD_PIN);
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BSP_UART_TXD_PORT_PERIPH_CLK_DISABLE();
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BSP_UART_RXD_PORT_PERIPH_CLK_DISABLE();
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}
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/*******************************************************************************
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* @brief 板载按键初始化
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* @param KEY
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* @retval None
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* @note
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*/
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void Bsp_Key_Init(KEY_TypeDef *KEY)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.IT = GPIO_IT_FALLING; // 下降沿中断使能
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT_PULLUP;
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GPIO_InitStruct.Pins = KEY->Pin;
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GPIO_Init(KEY->Port, &GPIO_InitStruct);
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// NVIC_ClearPendingIRQ(BSP_KEY_IRQn);
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// NVIC_EnableIRQ(BSP_KEY_IRQn);
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}
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/*******************************************************************************
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* @brief 读取板载按键的状态
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* @param none
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* @retval 返回板载按键的电平状态
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*
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*/
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KeyStateTypeDef Bsp_Read_Key(KEY_TypeDef *KEY)
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{
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uint32_t currentInput;
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currentInput= !!(KEY->Port->IDR & KEY->Pin); // 读取引脚状态
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return currentInput ? KEY_STATE_RELEASED : KEY_STATE_PRESSED;
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}
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/*******************************************************************************
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* @brief 板载LED初始化
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* @param LED
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* @retval None
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* @note
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*/
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void Bsp_Led_Init(LED_TypeDef *LED)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pins = LED->Pin;
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GPIO_Init(LED->Port, &GPIO_InitStruct);
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Bsp_Led_Off(LED);
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}
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/*******************************************************************************
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* @brief 点亮板载LED
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* @param LED
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* @retval None
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*/
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void Bsp_Led_On(LED_TypeDef *LED)
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{
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LED->Port->BSRR |= LED->Pin;
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}
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/*******************************************************************************
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* @brief 熄灭板载LED
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* @param LED
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* @retval None
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*/
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void Bsp_Led_Off(LED_TypeDef *LED)
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{
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LED->Port->BRR |= LED->Pin;
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}
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/*******************************************************************************
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* @brief 翻转板载LED
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* @param LED
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* @retval None
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*/
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void Bsp_Led_Tog(LED_TypeDef *LED)
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{
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LED->Port->TOG |= LED->Pin;
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}
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/*******************************************************************************
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* @brief 板载硬件接口初始化
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* @param None
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* @retval None
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*/
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void Bsp_Init(uint32_t ClkFreq)
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{
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Bsp_Led_Init(&LED1);
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Bsp_Led_Init(&LED2);
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Bsp_Key_Init(&KEY1);
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Bsp_Key_Init(&KEY2);
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Bsp_Uart_Init(ClkFreq, 115200);
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}
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/************************ (C) COPYRIGHT *****END OF FILE*************/
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