658 lines
21 KiB
C
658 lines
21 KiB
C
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/*
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******************************************************************************
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* @file system_fr30xx.c
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* @author FreqChip Firmware Team
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* @version V1.0.0
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* @date 2021
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* @brief Device Peripheral Access Layer System Source File.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2021 FreqChip.
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* All rights reserved.
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*
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******************************************************************************
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*/
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#include "fr30xx.h"
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static uint32_t System_CORE_HSCLK = 24000000;
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static uint32_t System_SPLLCLK;
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static uint32_t System_AUPLLCLK;
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uint32_t SystemCoreClock = 24000000;
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static uint32_t SystemDSPClock = 24000000;
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static uint32_t System_LPRCCLK = 57000;
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static uint32_t system_prevent_sleep_label = SYSTEM_PREVENT_SLEEP_TYPE_DISABLE;
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/*********************************************************************
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* @fn SystemInit
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*
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* @brief System Misc Init.
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*/
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void SystemInit(void)
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{
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/* FPU settings */
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#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
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SCB->CPACR |= ((3UL << 10*2) | (3UL << 11*2)); /* set CP10 and CP11 Full Access */
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#endif
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/* free counter enable */
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__SYSTEM_FREE_COUNTER_CLK_ENABLE();
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}
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/*********************************************************************
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* @fn System_CORE_HSCLK_CFG
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*
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* @brief CORE HSCLK config.
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*/
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void System_CORE_HSCLK_config(System_CORE_HSCLKConfig_t *COREHConfig)
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{
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if (COREHConfig->CORE_HSCLK_Source == CORE_HSCLK_SEL_HES)
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{
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__SYSTEM_CORE_HIGH_CLK_SELECT_OSC();
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System_CORE_HSCLK = HSE_VALUE;
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}
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else
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{
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__SYSTEM_CORE_HIGH_CLK_SELECT_RC();
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System_CORE_HSCLK = HSI_VALUE;
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}
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}
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/*********************************************************************
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* @fn System_SPLL_config
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*
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* @brief SPLL config.
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*
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* @param PLLConfig : SPLL config parameter.
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* @param fu32_timeout : Wait for SPLL stable timeout, unit 5us.
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*
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* @return -1: SPLL stable timeout.
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* 0: succeed.
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*/
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int System_SPLL_config(System_PLLConfig_t *PLLConfig, uint32_t fu32_timeout)
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{
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int PLL_stability_flag = 0;
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#define SPLL_ANALOG_POWER_ENABLE (0XC04B1820)
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#define SPLL_ANALOG_POWER_DISABLE (0XC04B1827)
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#define SPLL_ANALOG_POWER_ENABLE_WITHOUT_M (0X404B1820)
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if (PLLConfig->PowerEn)
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{
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SYSTEM->SPLLConfig3.PLL_N = PLLConfig->PLL_N;
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SYSTEM->SPLLConfig3.PLL_M = PLLConfig->PLL_M;
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if (PLLConfig->PLL_M)
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SYSTEM->SPLLConfig0 = SPLL_ANALOG_POWER_ENABLE;
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else
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SYSTEM->SPLLConfig0 = SPLL_ANALOG_POWER_ENABLE_WITHOUT_M;
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/* Wait for PLL stability timeout, unit 5us */
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for (int i = 0; i < fu32_timeout; i++)
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{
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system_delay_us(5);
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if (SYSTEM->SPLLConfig1 & 0x08)
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{
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PLL_stability_flag = 1;
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break;
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}
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}
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if (PLL_stability_flag)
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{
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__SYSTEM_SPLL_CLK_DIV2_ENABLE();
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System_SPLLCLK = (PLLConfig->PLL_N*HSE_VALUE) + ((double)PLLConfig->PLL_M*HSE_VALUE)/0xFFFF;
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}
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else
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{
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System_SPLLCLK = 0;
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return -1;
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}
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}
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else
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{
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SYSTEM->SPLLConfig0 = SPLL_ANALOG_POWER_DISABLE;
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System_SPLLCLK = 0;
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}
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return 0;
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}
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/*********************************************************************
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* @fn System_AUPLL_config
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*
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* @brief AUPLL config.
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*
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* @param PLLConfig : AUPLL config parameter.
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* @param fu32_timeout : Wait for AUPLL stable timeout, unit 5us.
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*
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* @return -1: AUPLL stable timeout.
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* 0: succeed.
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*/
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int System_AUPLL_config(System_PLLConfig_t *PLLConfig, uint32_t fu32_timeout)
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{
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int PLL_stability_flag = 0;
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#define AUPLL_ANALOG_POWER_ENABLE (0XC04B1820)
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#define AUPLL_ANALOG_POWER_DISABLE (0XC04B1827)
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#define AUPLL_ANALOG_POWER_ENABLE_WITHOUT_M (0X404B1820)
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if (PLLConfig->PowerEn)
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{
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SYSTEM->AUPLLConfig3.PLL_N = PLLConfig->PLL_N;
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SYSTEM->AUPLLConfig3.PLL_M = PLLConfig->PLL_M;
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if (PLLConfig->PLL_M)
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SYSTEM->AUPLLConfig0 = AUPLL_ANALOG_POWER_ENABLE;
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else
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SYSTEM->AUPLLConfig0 = AUPLL_ANALOG_POWER_ENABLE_WITHOUT_M;
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/* Wait for PLL stability timeout, unit 5us */
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for (int i = 0; i < fu32_timeout; i++)
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{
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system_delay_us(5);
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if (SYSTEM->AUPLLConfig1 & 0x08)
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{
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PLL_stability_flag = 1;
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break;
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}
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}
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if (PLL_stability_flag)
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{
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System_AUPLLCLK = (PLLConfig->PLL_N*HSE_VALUE) + ((double)PLLConfig->PLL_M*HSE_VALUE)/0xFFFF;
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}
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else
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{
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System_SPLLCLK = 0;
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return -1;
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}
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}
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else
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{
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SYSTEM->AUPLLConfig0 = AUPLL_ANALOG_POWER_DISABLE;
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System_AUPLLCLK = 0;
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}
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return 0;
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}
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/*********************************************************************
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* @fn System_MCU_clock_Config
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*
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* @brief MCU clock congfig.
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*/
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void System_MCU_clock_Config(System_ClkConfig_t *ClkConfig)
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{
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/* MCU clock source select CORE_HSCLK */
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if (ClkConfig->MCU_Clock_Source == MCU_CLK_SEL_CORE_HSCLK)
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{
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__SYSTEM_MCU_CLK_DIV(ClkConfig->MCU_DIV);
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__SYSTEM_MCU_CLK_SELECT_COREH();
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SystemDSPClock = System_CORE_HSCLK;
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SystemCoreClock = System_CORE_HSCLK / ClkConfig->MCU_DIV;
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}
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/* MCU clock source select SPLLCLK */
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else
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{
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__SYSTEM_SOC_CLK_DIV(ClkConfig->SOC_DIV);
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__SYSTEM_MCU_CLK_DIV(ClkConfig->MCU_DIV);
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__SYSTEM_MCU_CLK_SELECT_SPLL();
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SystemDSPClock = System_SPLLCLK / ClkConfig->SOC_DIV;
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SystemCoreClock = SystemDSPClock / ClkConfig->MCU_DIV;
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}
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__SYSTEM_APB0_CLK_RATIO(ClkConfig->APB0_DIV);
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__SYSTEM_APB1_CLK_RATIO(ClkConfig->APB1_DIV);
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__SYSTEM_APB2_CLK_RATIO(ClkConfig->APB2_DIV);
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__SYSTEM_APB3_CLK_RATIO(ClkConfig->APB3_DIV);
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}
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/*********************************************************************
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* @fn System_get_CoreClock/
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* System_get_DSPClock/
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* System_get_CORE_HSCLK/
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* System_get_SPLLCLK/
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* System_get_AUPLLCLK/
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*
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* @brief get system clock.unit HZ.
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*/
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__RAM_CODE uint32_t system_get_CoreClock(void)
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{
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return SystemCoreClock;
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}
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uint32_t system_get_DSPClock(void)
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{
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return SystemDSPClock;
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}
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uint32_t system_get_CORE_HSCLK(void)
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{
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return System_CORE_HSCLK;
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}
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uint32_t system_get_SPLLCLK(void)
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{
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return System_SPLLCLK;
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}
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uint32_t system_get_AUPLLCLK(void)
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{
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return System_AUPLLCLK;
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}
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uint32_t system_get_LPRCCLK(void)
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{
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return System_LPRCCLK;
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}
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void system_set_LPRCCLK(uint32_t clk)
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{
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System_LPRCCLK = clk;
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}
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/*********************************************************************
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* @fn system_get_peripheral_clock
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*
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* @brief get peripheral clock. unit HZ
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*
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* @param fe_peripheral : peripheral select.
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*
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* @return peripheral clock unit HZ.
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*/
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uint32_t system_get_peripheral_clock(per_clock_index_t peripheral)
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{
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uint32_t PerClock;
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switch (peripheral)
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{
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case PER_CLK_UARTx:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.UART_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV1.UART_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV1.UART_CLK_DIV + 1);
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}break;
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case PER_CLK_GPIOx:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.GPIO_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV1.GPIO_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV1.GPIO_CLK_DIV + 1);
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}break;
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case PER_CLK_I2Cx:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.I2C_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV1.I2C_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV1.I2C_CLK_DIV + 1);
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}break;
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case PER_CLK_TIMER01:{
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV2.TIMER01_CLK_DIV + 1);
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}break;
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case PER_CLK_TIMER23:{
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV2.TIMER23_CLK_DIV + 1);
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}break;
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case PER_CLK_SPIS:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.SSIS_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV0.SSIS_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.SSIS_CLK_DIV + 1);
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}break;
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case PER_CLK_SPIMX8_0:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.SSIS_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV0.MSPI0_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.MSPI0_CLK_DIV + 1);
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}break;
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case PER_CLK_SPIMX8_1:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.SSIS_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV0.MSPI1_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.MSPI1_CLK_DIV + 1);
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}break;
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case PER_CLK_PWM:
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{
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/* clock from SPLL */
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if (SYSTEM->ClockSEL0.SSIS_CLK_SEL)
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PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV2.PWM_CLK_DIV + 1);
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else
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV2.PWM_CLK_DIV + 1);
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}break;
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case PER_CLK_PDM0:
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case PER_CLK_PDM1:
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case PER_CLK_PDM2:
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{
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uint32_t PDMx_CLK_SEL, PDMx_CLK_DIV;
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if (peripheral == PER_CLK_PDM0) {
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PDMx_CLK_SEL = SYSTEM->ClockSEL1.PDM0_CLK_SEL;
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PDMx_CLK_DIV = SYSTEM->AudioClockDIV.PDM0_CLK_DIV;
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}
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else if (peripheral == PER_CLK_PDM1){
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PDMx_CLK_SEL = SYSTEM->ClockSEL1.PDM1_CLK_SEL;
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PDMx_CLK_DIV = SYSTEM->AudioClockDIV.PDM1_CLK_DIV;
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}
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else{
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PDMx_CLK_SEL = SYSTEM->ClockSEL1.PDM2_CLK_SEL;
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PDMx_CLK_DIV = SYSTEM->AudioClockDIV.PDM2_CLK_DIV;
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}
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/* clock from HCLK */
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if (PDMx_CLK_SEL == 0)
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PerClock = system_get_CORE_HSCLK() / (PDMx_CLK_DIV + 1);
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/* clock from AUPLL */
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else if (PDMx_CLK_SEL == 1)
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PerClock = system_get_AUPLLCLK() / (PDMx_CLK_DIV + 1);
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}break;
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case PER_CLK_SDIOH0:
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{
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/* clock from HCLK */
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if (SYSTEM->ClockSEL0.SDIOH0_CLK_SEL == 0)
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PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.SDIOH0_CLK_DIV + 1);
|
||
|
|
/* clock from SPLL */
|
||
|
|
else if (SYSTEM->ClockSEL0.SDIOH0_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->BlockClockDIV0.SDIOH0_CLK_DIV + 1);
|
||
|
|
/* clock from AUPLL */
|
||
|
|
else
|
||
|
|
PerClock = system_get_AUPLLCLK() / (SYSTEM->BlockClockDIV0.SDIOH0_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_SDIOH1:
|
||
|
|
{
|
||
|
|
/* clock from HCLK */
|
||
|
|
if (SYSTEM->ClockSEL0.SDIOH1_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.SDIOH1_CLK_DIV + 1);
|
||
|
|
/* clock from SPLL */
|
||
|
|
else if (SYSTEM->ClockSEL0.SDIOH1_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->BlockClockDIV0.SDIOH1_CLK_DIV + 1);
|
||
|
|
/* clock from AUPLL */
|
||
|
|
else
|
||
|
|
PerClock = system_get_AUPLLCLK() / (SYSTEM->BlockClockDIV0.SDIOH1_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_CANx:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL0.MCAN_CLK_SEL)
|
||
|
|
PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV2.MCAN_CLK_DIV + 1);
|
||
|
|
else
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV2.MCAN_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_I2Sx:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL1.I2S_CLK_SEL == 2)
|
||
|
|
PerClock = (system_get_AUPLLCLK()) / (SYSTEM->AudioClockDIV.I2S_CLK_DIV + 1);
|
||
|
|
else if (SYSTEM->ClockSEL1.I2S_CLK_SEL == 1)
|
||
|
|
PerClock = (system_get_SPLLCLK()) / (SYSTEM->AudioClockDIV.I2S_CLK_DIV + 1);
|
||
|
|
else if (SYSTEM->ClockSEL1.I2S_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->AudioClockDIV.I2S_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_OSPI:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL0.OSPI_CLK_SEL == 2)
|
||
|
|
PerClock = (system_get_AUPLLCLK()) / (SYSTEM->BlockClockDIV0.OSPI_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL0.OSPI_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->BlockClockDIV0.OSPI_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL0.OSPI_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.OSPI_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_QSPI0:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL0.QSPI0_CLK_SEL == 2)
|
||
|
|
PerClock = (system_get_AUPLLCLK()) / (SYSTEM->BlockClockDIV0.QSPI0_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL0.QSPI0_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->BlockClockDIV0.QSPI0_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL0.QSPI0_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.QSPI0_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_QSPI1:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL0.QSPI1_CLK_SEL == 2)
|
||
|
|
PerClock = (system_get_AUPLLCLK()) / (SYSTEM->BlockClockDIV0.QSPI1_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL0.QSPI1_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->BlockClockDIV0.QSPI1_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL0.QSPI1_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV0.QSPI1_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_SPIMx:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL0.SSIM_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->BlockClockDIV1.SSIM_CLK_DIV + 1);
|
||
|
|
else
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV1.SSIM_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_SBC:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL1.SBC_CLK_SEL == 1)
|
||
|
|
PerClock = system_get_SPLLCLK() / (SYSTEM->AudioClockDIV.SBC_CLK_DIV + 1);
|
||
|
|
else
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->AudioClockDIV.SBC_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_PARALLEL:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL0.PARALLEL_CLK_SEL == 2)
|
||
|
|
PerClock = (system_get_AUPLLCLK()/2) / (SYSTEM->BlockClockDIV1.PARALLEL_CLK_DIV + 1);
|
||
|
|
else if (SYSTEM->ClockSEL0.PARALLEL_CLK_SEL == 1)
|
||
|
|
PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->BlockClockDIV1.PARALLEL_CLK_DIV + 1);
|
||
|
|
else if (SYSTEM->ClockSEL0.PARALLEL_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->BlockClockDIV1.PARALLEL_CLK_DIV + 1);
|
||
|
|
|
||
|
|
}break;
|
||
|
|
|
||
|
|
case PER_CLK_SPDIF:
|
||
|
|
{
|
||
|
|
/* clock from SPLL */
|
||
|
|
if (SYSTEM->ClockSEL1.SPDIF_CLK_SEL == 2)
|
||
|
|
PerClock = (system_get_AUPLLCLK()/2) / (SYSTEM->AudioClockDIV.SPDIF_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL1.SPDIF_CLK_SEL == 1)
|
||
|
|
PerClock = (system_get_SPLLCLK()/2) / (SYSTEM->AudioClockDIV.SPDIF_CLK_DIV + 1);
|
||
|
|
else if(SYSTEM->ClockSEL1.SPDIF_CLK_SEL == 0)
|
||
|
|
PerClock = system_get_CORE_HSCLK() / (SYSTEM->AudioClockDIV.SPDIF_CLK_DIV + 1);
|
||
|
|
}break;
|
||
|
|
|
||
|
|
default: PerClock = 0;break;
|
||
|
|
}
|
||
|
|
return PerClock;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* @fn system_dmac_request_id_config
|
||
|
|
*
|
||
|
|
* @brief dmac request id config.
|
||
|
|
*
|
||
|
|
* @param fe_source : dma request source.
|
||
|
|
* @param fe_id : user select request id.
|
||
|
|
*
|
||
|
|
* @return None.
|
||
|
|
*/
|
||
|
|
void system_dmac_request_id_config(dmac_request_source_t fe_source, dmac_request_id_t fe_id)
|
||
|
|
{
|
||
|
|
uint8_t lu8_RequestSource;
|
||
|
|
uint8_t lu8_RequestIDReg;
|
||
|
|
|
||
|
|
lu8_RequestIDReg = fe_source / 4;
|
||
|
|
lu8_RequestSource = fe_source % 4;
|
||
|
|
|
||
|
|
SYSTEM->DmacHsCfg[lu8_RequestIDReg] &= ~(0x1F << lu8_RequestSource * 8);
|
||
|
|
SYSTEM->DmacHsCfg[lu8_RequestIDReg] |= fe_id << (lu8_RequestSource * 8);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* @fn system_delay_us
|
||
|
|
*
|
||
|
|
* @brief system delay unit us, use system free counter.
|
||
|
|
*
|
||
|
|
* @param fu32_delay: delay unit us.
|
||
|
|
*/
|
||
|
|
__RAM_CODE void system_delay_us(uint32_t fu32_delay)
|
||
|
|
{
|
||
|
|
uint32_t backups_tack = FREE_COUNTER_VALUE;
|
||
|
|
|
||
|
|
while(backups_tack - FREE_COUNTER_VALUE < fu32_delay);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* @fn system_cache_enable
|
||
|
|
*
|
||
|
|
* @brief cache enable.
|
||
|
|
*
|
||
|
|
* @param invalid_ram : true: invalidating the cache SRAM.
|
||
|
|
* false: hold the cache SRAM.
|
||
|
|
*/
|
||
|
|
__RAM_CODE void system_cache_enable(bool invalid_ram)
|
||
|
|
{
|
||
|
|
uint32_t prim;
|
||
|
|
|
||
|
|
// manul enable the cache and invalidating the SRAM
|
||
|
|
prim = __get_PRIMASK();
|
||
|
|
__disable_irq();
|
||
|
|
switch (*(volatile uint32_t *)(FLASH_CACHE_BASE + 4) & 0x03) {
|
||
|
|
case 0x01: // enabling
|
||
|
|
while(((*(volatile uint32_t *)(FLASH_CACHE_BASE+4)) & 0x03) != 0x02);
|
||
|
|
case 0x02: // enabled
|
||
|
|
break;
|
||
|
|
case 0x03: // disabling
|
||
|
|
while(((*(volatile uint32_t *)(FLASH_CACHE_BASE+4)) & 0x03) != 0x00);
|
||
|
|
default:
|
||
|
|
*(volatile uint32_t *)FLASH_CACHE_BASE = 0x38;
|
||
|
|
*(volatile uint32_t *)FLASH_CACHE_BASE = 0x3c;
|
||
|
|
while(((*(volatile uint32_t *)(FLASH_CACHE_BASE+4)) & 0x10) == 0);
|
||
|
|
if(invalid_ram)
|
||
|
|
{
|
||
|
|
*(volatile uint32_t *)FLASH_CACHE_BASE = 0x3e;
|
||
|
|
while((*(volatile uint32_t *)FLASH_CACHE_BASE) & 0x02);
|
||
|
|
}
|
||
|
|
*(volatile uint32_t *)FLASH_CACHE_BASE = 0x3d;
|
||
|
|
while(((*(volatile uint32_t *)(FLASH_CACHE_BASE+4)) & 0x03) != 0x02);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if(!prim)
|
||
|
|
{
|
||
|
|
__enable_irq();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* @fn system_cache_disable
|
||
|
|
*
|
||
|
|
* @brief cache disable.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
__RAM_CODE void system_cache_disable(void)
|
||
|
|
{
|
||
|
|
uint32_t prim;
|
||
|
|
|
||
|
|
// manul disable the cache
|
||
|
|
prim = __get_PRIMASK();
|
||
|
|
__disable_irq();
|
||
|
|
*(volatile uint32_t *)FLASH_CACHE_BASE = 0x3c;
|
||
|
|
*(volatile uint32_t *)FLASH_CACHE_BASE = 0x38;
|
||
|
|
while(((*(volatile uint32_t *)(FLASH_CACHE_BASE+0x04)) & 0x03) != 0x00);
|
||
|
|
|
||
|
|
if(!prim)
|
||
|
|
{
|
||
|
|
__enable_irq();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void system_prevent_sleep_set(uint32_t type)
|
||
|
|
{
|
||
|
|
GLOBAL_INT_DISABLE();
|
||
|
|
system_prevent_sleep_label |= type;
|
||
|
|
GLOBAL_INT_RESTORE();
|
||
|
|
}
|
||
|
|
|
||
|
|
void system_prevent_sleep_clear(uint32_t type)
|
||
|
|
{
|
||
|
|
GLOBAL_INT_DISABLE();
|
||
|
|
system_prevent_sleep_label &= (~type);
|
||
|
|
GLOBAL_INT_RESTORE();
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t system_prevent_sleep_get(void)
|
||
|
|
{
|
||
|
|
return system_prevent_sleep_label;
|
||
|
|
}
|
||
|
|
|
||
|
|
void system_reset(void)
|
||
|
|
{
|
||
|
|
__disable_irq();
|
||
|
|
// reboot
|
||
|
|
iwdt_Init_t iwdt_env;
|
||
|
|
iwdt_env.iwdt_Count = 300;
|
||
|
|
iwdt_env.iwdt_Timeout = 10;
|
||
|
|
iwdt_env.iwdt_int_Enable = WDT_INT_DISABLE;
|
||
|
|
iwdt_init(iwdt_env);
|
||
|
|
iwdt_Enable();
|
||
|
|
// ool_write(PMU_REG_IOLDO1_CTRL_0, (ool_read(PMU_REG_IOLDO1_CTRL_0) & 0xf0) | 0x01);
|
||
|
|
while(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ====================================================================================================== */
|
||
|
|
/* =============================== GLOBAL interrupt controller ===================================== */
|
||
|
|
/* ====================================================================================================== */
|
||
|
|
void GLOBAL_INT_START(void)
|
||
|
|
{
|
||
|
|
__asm (
|
||
|
|
"CPSIE i \n"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
void GLOBAL_INT_STOP(void)
|
||
|
|
{
|
||
|
|
__asm (
|
||
|
|
"CPSID i \n"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
__RAM_CODE void CPU_SR_Restore(uint32_t org_base_pri)
|
||
|
|
{
|
||
|
|
__asm (
|
||
|
|
"MSR BASEPRI, %[org]\n"
|
||
|
|
:
|
||
|
|
: [org]"r"(org_base_pri)
|
||
|
|
:
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
__RAM_CODE uint32_t CPU_SR_Save(uint32_t new_basepri)
|
||
|
|
{
|
||
|
|
uint32_t old_basepri;
|
||
|
|
__asm (
|
||
|
|
"MRS R4, BASEPRI\n"
|
||
|
|
"MSR BASEPRI, %[new]\n"
|
||
|
|
"MOV %[old], R4 \n"
|
||
|
|
: [old]"=r"(old_basepri)
|
||
|
|
: [new]"r"(new_basepri)
|
||
|
|
: "r4"
|
||
|
|
);
|
||
|
|
return old_basepri;
|
||
|
|
}
|