/******************************************************************************* * Copyright (C) 2019, Xiaohua Semiconductor Co.,Ltd All rights reserved. * * This software is owned and published by: * Xiaohua Semiconductor Co.,Ltd ("XHSC"). * * BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND * BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT. * * This software contains source code for use with XHSC * components. This software is licensed by XHSC to be adapted only * for use in systems utilizing XHSC components. XHSC shall not be * responsible for misuse or illegal use of this software for devices not * supported herein. XHSC is providing this software "AS IS" and will * not be responsible for issues arising from incorrect user implementation * of the software. * * Disclaimer: * XHSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE, * REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS), * ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING, * WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED * WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED * WARRANTY OF NONINFRINGEMENT. * XHSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT, * NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT * LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, * LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR * INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA, * SAVINGS OR PROFITS, * EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR * INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED * FROM, THE SOFTWARE. * * This software may be replicated in part or whole for the licensed use, * with the restriction that this Disclaimer and Copyright notice must be * included with each copy of this software, whether used in part or whole, * at all times. */ /******************************************************************************/ /** \file system_hc32l13x.c ** ** System clock initialization. ** @link SampleGroup Some description @endlink ** ** - 2019-03-01 1.0 Lux First version. ** ******************************************************************************/ /******************************************************************************/ /* Include files */ /******************************************************************************/ #include "base_types.h" #include "hc32l13x.h" #include "system_hc32l13x.h" #include "sysctrl.h" /** ****************************************************************************** ** System Clock Frequency (Core Clock) Variable according CMSIS ******************************************************************************/ uint32_t SystemCoreClock = 4000000; //add clock source. void SystemCoreClockUpdate (void) // Update SystemCoreClock variable { SystemCoreClock = Sysctrl_GetHClkFreq(); } /** ****************************************************************************** ** \brief 对MCU未引出IO端口进行默认配置. ** ** \param none ** \return none ******************************************************************************/ static void _HidePinInit(void) { uint32_t tmpReg = M0P_SYSCTRL->PERI_CLKEN; M0P_SYSCTRL->PERI_CLKEN_f.GPIO = 1; #if defined(HC32L13xKxxx) //64PIN MCU ///< #elif defined(HC32L13xJxxx) //48PIN MCU M0P_GPIO->PCADS &= 0xE000; ///< PC00~PC12配置为数字端口 M0P_GPIO->PDADS &= 0xFFCB; ///< PD02/PD04/PD05配置为数字端口 M0P_GPIO->PCDIR |= 0x1FFF; ///< PC00~PC12配置为端口输入 M0P_GPIO->PDDIR |= 0x0034; ///< PD02/PD04/PD05配置为端口输入 M0P_GPIO->PCPU |= 0x1FFF; ///< PC00~PC12配置为上拉 M0P_GPIO->PDPU |= 0x0034; ///< PD02/PD04/PD05配置为上拉 #elif defined(HC32L13xFxxx) //32PIN MCU M0P_GPIO->PAADS &= 0xFFF4; ///< PA00/PA01/PA03配置为数字端口 M0P_GPIO->PBADS &= 0x08FB; ///< PB02/PB08/PB09/PB10/PB12/PB13/PB14/PB15配置为数字端口 M0P_GPIO->PCADS &= 0xC000; ///< PC00~PC13配置为数字端口 M0P_GPIO->PDADS &= 0xFF0B; ///< PD02/PD04/PD05/PD06/PD07配置为数字端口 M0P_GPIO->PADIR |= 0x000B; ///< PA00/PA01/PA03配置为端口输入 M0P_GPIO->PBDIR |= 0xF704; ///< PB02/PB08/PB09/PB10/PB12/PB13/PB14/PB15配置为端口输入 M0P_GPIO->PCDIR |= 0x3FFF; ///< PC00~PC13配置为端口输入 M0P_GPIO->PDDIR |= 0x00F4; ///< PD02/PD04/PD05/PD06/PD07配置为端口输入 M0P_GPIO->PAPU |= 0x000B; ///< PA00/PA01/PA03配置为上拉 M0P_GPIO->PBPU |= 0xF704; ///< PB02/PB08/PB09/PB10/PB12/PB13/PB14/PB15配置为上拉 M0P_GPIO->PCPU |= 0x3FFF; ///< PC00~PC12配置为上拉 M0P_GPIO->PDPU |= 0x00F4; ///< PD02/PD04/PD06配置为上拉 #elif defined(HC32L13xExxx) //28PIN MCU M0P_GPIO->PAADS &= 0x7FFF; ///< PA15配置为数字端口 M0P_GPIO->PBADS &= 0x0007; ///< PB03~15配置为数字端口 M0P_GPIO->PCADS &= 0xC000; ///< PC00~PC13配置位数字端口 M0P_GPIO->PDADS &= 0xFF0B; ///< PD02/PD04/PD05/PD06/PD07配置位数字端口 M0P_GPIO->PADIR |= 0x8000; ///< PA15配置为端口输入 M0P_GPIO->PBDIR |= 0xFFF8; ///< PB03~15配置为端口输入 M0P_GPIO->PCDIR |= 0x3FFF; ///< PC00~PC13配置为端口输入 M0P_GPIO->PDDIR |= 0x00F4; ///< PD02/PD04/PD05/PD06/PD07配置为端口输入 M0P_GPIO->PAPU |= 0x8000; ///< PA15配置为上拉 M0P_GPIO->PBPU |= 0xFFF8; ///< PB03~15配置为上拉 M0P_GPIO->PCPU |= 0x3FFF; ///< PC00~PC13配置为上拉 M0P_GPIO->PDPU |= 0x00F4; ///< PD02/PD04/PD05/PD06/PD07配置为上拉 #endif M0P_SYSCTRL->PERI_CLKEN = tmpReg; } /** ****************************************************************************** ** \brief Setup the microcontroller system. Initialize the System and update ** the SystemCoreClock variable. ** ** \param none ** \return none ******************************************************************************/ void SystemInit(void) { M0P_SYSCTRL->RCL_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C22ul))); M0P_SYSCTRL->RCH_CR_f.TRIM = (*((volatile uint16_t*) (0x00100C08ul))); SystemCoreClockUpdate(); _HidePinInit(); } #if defined (__CC_ARM) extern int32_t $Super$$main(void); /* re-define main function */ int $Sub$$main(void) { SystemInit(); $Super$$main(); return 0; } #elif defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) extern int32_t $Super$$main(void); /* re-define main function */ int $Sub$$main(void) { SystemInit(); $Super$$main(); return 0; } #elif defined(__ICCARM__) extern int32_t main(void); /* __low_level_init will auto called by IAR cstartup */ extern void __iar_data_init3(void); int __low_level_init(void) { // call IAR table copy function. __iar_data_init3(); SystemInit(); main(); return 0; } #endif