369 lines
8.1 KiB
C
369 lines
8.1 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : CH59x_SYS.c
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* Author : WCH
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* Version : V1.2
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* Date : 2021/11/17
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* Description
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#include "CH59x_common.h"
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volatile uint32_t IRQ_STA = 0;
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/*********************************************************************
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* @fn SetSysClock
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*
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* @brief 配置系统运行时钟
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*
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* @param sc - 系统时钟源选择 refer to SYS_CLKTypeDef
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*
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* @return none
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*/
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__HIGH_CODE
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void SetSysClock(SYS_CLKTypeDef sc)
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{
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sys_safe_access_enable();
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R8_PLL_CONFIG &= ~(1 << 5); //
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sys_safe_access_disable();
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if(sc & 0x20) // HSE div
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{
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sys_safe_access_enable();
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R32_CLK_SYS_CFG = (0 << 6) | (sc & 0x1f) | RB_TX_32M_PWR_EN | RB_PLL_PWR_EN;
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__nop();
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__nop();
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__nop();
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__nop();
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sys_safe_access_disable();
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sys_safe_access_enable();
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SAFEOPERATE;
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R8_FLASH_CFG = 0X51;
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sys_safe_access_disable();
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}
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else if(sc & 0x40) // PLL div
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{
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sys_safe_access_enable();
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R32_CLK_SYS_CFG = (1 << 6) | (sc & 0x1f) | RB_TX_32M_PWR_EN | RB_PLL_PWR_EN;
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__nop();
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__nop();
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__nop();
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__nop();
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sys_safe_access_disable();
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sys_safe_access_enable();
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R8_FLASH_CFG = 0X52;
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sys_safe_access_disable();
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}
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else
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{
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sys_safe_access_enable();
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R32_CLK_SYS_CFG |= RB_CLK_SYS_MOD;
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sys_safe_access_disable();
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}
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//更改FLASH clk的驱动能力
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sys_safe_access_enable();
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R8_PLL_CONFIG |= 1 << 7;
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sys_safe_access_disable();
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}
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/*********************************************************************
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* @fn GetSysClock
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*
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* @brief 获取当前系统时钟
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*
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* @param none
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*
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* @return Hz
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*/
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uint32_t GetSysClock(void)
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{
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uint16_t rev;
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rev = R32_CLK_SYS_CFG & 0xff;
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if((rev & 0x40) == (0 << 6))
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{ // 32M进行分频
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return (32000000 / (rev & 0x1f));
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}
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else if((rev & RB_CLK_SYS_MOD) == (1 << 6))
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{ // PLL进行分频
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return (480000000 / (rev & 0x1f));
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}
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else
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{ // 32K做主频
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return (32000);
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}
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}
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/*********************************************************************
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* @fn SYS_GetInfoSta
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*
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* @brief 获取当前系统信息状态
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*
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* @param i - refer to SYS_InfoStaTypeDef
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*
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* @return 是否开启
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*/
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uint8_t SYS_GetInfoSta(SYS_InfoStaTypeDef i)
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{
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if(i == STA_SAFEACC_ACT)
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{
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return (R8_SAFE_ACCESS_SIG & RB_SAFE_ACC_ACT);
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}
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else
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{
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return (R8_GLOB_CFG_INFO & (1 << i));
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}
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}
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/*********************************************************************
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* @fn SYS_ResetExecute
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*
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* @brief 执行系统软件复位
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*
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* @param none
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*
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* @return none
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*/
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__HIGH_CODE
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void SYS_ResetExecute(void)
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{
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FLASH_ROM_SW_RESET();
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sys_safe_access_enable();
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R8_RST_WDOG_CTRL |= RB_SOFTWARE_RESET;
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sys_safe_access_disable();
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}
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/*********************************************************************
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* @fn SYS_DisableAllIrq
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*
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* @brief 关闭所有中断，并保留当前中断值
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*
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* @param pirqv - 当前保留中断值
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*
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* @return none
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*/
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void SYS_DisableAllIrq(uint32_t *pirqv)
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{
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*pirqv = (PFIC->ISR[0] >> 8) | (PFIC->ISR[1] << 24);
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PFIC->IRER[0] = 0xffffffff;
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PFIC->IRER[1] = 0xffffffff;
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}
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/*********************************************************************
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* @fn SYS_RecoverIrq
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*
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* @brief 恢复之前关闭的中断值
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*
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* @param irq_status - 当前保留中断值
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*
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* @return none
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*/
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void SYS_RecoverIrq(uint32_t irq_status)
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{
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PFIC->IENR[0] = (irq_status << 8);
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PFIC->IENR[1] = (irq_status >> 24);
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}
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/*********************************************************************
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* @fn SYS_GetSysTickCnt
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*
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* @brief 获取当前系统(SYSTICK)计数值
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*
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* @param none
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*
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* @return 当前计数值
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*/
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uint32_t SYS_GetSysTickCnt(void)
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{
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uint32_t val;
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val = SysTick->CNT;
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return (val);
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}
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/*********************************************************************
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* @fn WWDG_ITCfg
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*
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* @brief 看门狗定时器溢出中断使能
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*
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* @param s - 溢出是否中断
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*
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* @return none
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*/
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void WWDG_ITCfg(FunctionalState s)
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{
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uint8_t ctrl = R8_RST_WDOG_CTRL;
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if(s == DISABLE)
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{
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ctrl &= ~RB_WDOG_INT_EN;
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}
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else
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{
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ctrl |= RB_WDOG_INT_EN;
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}
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sys_safe_access_enable();
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R8_RST_WDOG_CTRL = ctrl;
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sys_safe_access_disable();
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}
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/*********************************************************************
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* @fn WWDG_ResetCfg
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*
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* @brief 看门狗定时器复位功能
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*
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* @param s - 溢出是否复位
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*
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* @return none
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*/
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void WWDG_ResetCfg(FunctionalState s)
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{
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uint8_t ctrl = R8_RST_WDOG_CTRL;
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if(s == DISABLE)
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{
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ctrl &= ~RB_WDOG_RST_EN;
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}
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else
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{
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ctrl |= RB_WDOG_RST_EN;
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}
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sys_safe_access_enable();
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R8_RST_WDOG_CTRL = ctrl;
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sys_safe_access_disable();
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}
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/*********************************************************************
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* @fn WWDG_ClearFlag
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*
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* @brief 清除看门狗中断标志，重新加载计数值也可清除
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*
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* @param none
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*
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* @return none
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*/
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void WWDG_ClearFlag(void)
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{
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sys_safe_access_enable();
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R8_RST_WDOG_CTRL |= RB_WDOG_INT_FLAG;
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sys_safe_access_disable();
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}
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/*********************************************************************
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* @fn HardFault_Handler
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*
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* @brief 硬件错误中断，进入后执行复位，复位类型为上电复位
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*
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* @param none
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*
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* @return none
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*/
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__INTERRUPT
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__HIGH_CODE
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__attribute__((weak))
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void HardFault_Handler(void)
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{
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FLASH_ROM_SW_RESET();
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sys_safe_access_enable();
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R16_INT32K_TUNE = 0xFFFF;
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sys_safe_access_disable();
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sys_safe_access_enable();
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R8_RST_WDOG_CTRL |= RB_SOFTWARE_RESET;
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sys_safe_access_disable();
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while(1);
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}
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/*********************************************************************
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* @fn mDelayuS
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*
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* @brief uS 延时
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*
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* @param t - 时间参数
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*
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* @return none
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*/
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__HIGH_CODE
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void mDelayuS(uint16_t t)
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{
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uint32_t i;
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#if(FREQ_SYS == 80000000)
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i = t * 20;
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#elif(FREQ_SYS == 60000000)
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i = t * 15;
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#elif(FREQ_SYS == 48000000)
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i = t * 12;
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#elif(FREQ_SYS == 40000000)
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i = t * 10;
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#elif(FREQ_SYS == 32000000)
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i = t << 3;
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#elif(FREQ_SYS == 24000000)
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i = t * 6;
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#elif(FREQ_SYS == 16000000)
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i = t << 2;
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#elif(FREQ_SYS == 8000000)
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i = t << 1;
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#elif(FREQ_SYS == 4000000)
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i = t;
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#elif(FREQ_SYS == 2000000)
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i = t >> 1;
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#elif(FREQ_SYS == 1000000)
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i = t >> 2;
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#else
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i = t << 1;
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#endif
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do
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{
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__nop();
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} while(--i);
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}
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/*********************************************************************
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* @fn mDelaymS
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*
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* @brief mS 延时
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*
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* @param t - 时间参数
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*
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* @return none
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*/
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__HIGH_CODE
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void mDelaymS(uint16_t t)
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{
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uint16_t i;
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for(i = 0; i < t; i++)
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{
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mDelayuS(1000);
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}
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}
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#ifdef DEBUG
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int _write(int fd, char *buf, int size)
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{
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int i;
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for(i = 0; i < size; i++)
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{
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#if DEBUG == Debug_UART0
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while(R8_UART0_TFC == UART_FIFO_SIZE); /* 等待数据发送 */
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R8_UART0_THR = *buf++; /* 发送数据 */
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#elif DEBUG == Debug_UART1
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while(R8_UART1_TFC == UART_FIFO_SIZE); /* 等待数据发送 */
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R8_UART1_THR = *buf++; /* 发送数据 */
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#elif DEBUG == Debug_UART2
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while(R8_UART2_TFC == UART_FIFO_SIZE); /* 等待数据发送 */
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R8_UART2_THR = *buf++; /* 发送数据 */
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#elif DEBUG == Debug_UART3
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while(R8_UART3_TFC == UART_FIFO_SIZE); /* 等待数据发送 */
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R8_UART3_THR = *buf++; /* 发送数据 */
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#endif
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}
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return size;
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}
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#endif
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