/* ** ################################################################### ** Processors: MIMXRT1176AVM8A_cm7 ** MIMXRT1176CVM8A_cm7 ** MIMXRT1176DVMAA_cm7 ** ** Compilers: Freescale C/C++ for Embedded ARM ** GNU C Compiler ** IAR ANSI C/C++ Compiler for ARM ** Keil ARM C/C++ Compiler ** MCUXpresso Compiler ** ** Reference manual: IMXRT1170RM, Rev 1, 02/2021 ** Version: rev. 1.0, 2020-12-29 ** Build: b210615 ** ** Abstract: ** Provides a system configuration function and a global variable that ** contains the system frequency. It configures the device and initializes ** the oscillator (PLL) that is part of the microcontroller device. ** ** Copyright 2016 Freescale Semiconductor, Inc. ** Copyright 2016-2021 NXP ** All rights reserved. ** ** SPDX-License-Identifier: BSD-3-Clause ** ** http: www.nxp.com ** mail: support@nxp.com ** ** Revisions: ** - rev. 0.1 (2018-03-05) ** Initial version. ** - rev. 1.0 (2020-12-29) ** Update header files to align with IMXRT1170RM Rev.0. ** ** ################################################################### */ /*! * @file MIMXRT1176_cm7 * @version 1.0 * @date 2021-06-15 * @brief Device specific configuration file for MIMXRT1176_cm7 (implementation * file) * * Provides a system configuration function and a global variable that contains * the system frequency. It configures the device and initializes the oscillator * (PLL) that is part of the microcontroller device. */ #include #include "fsl_device_registers.h" /* ---------------------------------------------------------------------------- -- Core clock ---------------------------------------------------------------------------- */ uint32_t SystemCoreClock = DEFAULT_SYSTEM_CLOCK; /* ---------------------------------------------------------------------------- -- SystemInit() ---------------------------------------------------------------------------- */ void SystemInit (void) { #if ((__FPU_PRESENT == 1) && (__FPU_USED == 1)) SCB->CPACR |= ((3UL << 10*2) | (3UL << 11*2)); /* set CP10, CP11 Full Access */ #endif /* ((__FPU_PRESENT == 1) && (__FPU_USED == 1)) */ #if defined(__MCUXPRESSO) extern uint32_t g_pfnVectors[]; // Vector table defined in startup code SCB->VTOR = (uint32_t)g_pfnVectors; #endif /* Watchdog disable */ #if (DISABLE_WDOG) if ((WDOG1->WCR & WDOG_WCR_WDE_MASK) != 0U) { WDOG1->WCR &= ~(uint16_t) WDOG_WCR_WDE_MASK; } if ((WDOG2->WCR & WDOG_WCR_WDE_MASK) != 0U) { WDOG2->WCR &= ~(uint16_t) WDOG_WCR_WDE_MASK; } if ((RTWDOG3->CS & RTWDOG_CS_CMD32EN_MASK) != 0U) { RTWDOG3->CNT = 0xD928C520U; /* 0xD928C520U is the update key */ } else { RTWDOG3->CNT = 0xC520U; RTWDOG3->CNT = 0xD928U; } RTWDOG3->TOVAL = 0xFFFF; RTWDOG3->CS = (uint32_t) ((RTWDOG3->CS) & ~RTWDOG_CS_EN_MASK) | RTWDOG_CS_UPDATE_MASK; if ((RTWDOG4->CS & RTWDOG_CS_CMD32EN_MASK) != 0U) { RTWDOG4->CNT = 0xD928C520U; /* 0xD928C520U is the update key */ } else { RTWDOG4->CNT = 0xC520U; RTWDOG4->CNT = 0xD928U; } RTWDOG4->TOVAL = 0xFFFF; RTWDOG4->CS = (uint32_t) ((RTWDOG4->CS) & ~RTWDOG_CS_EN_MASK) | RTWDOG_CS_UPDATE_MASK; #endif /* (DISABLE_WDOG) */ /* Disable Systick which might be enabled by bootrom */ if ((SysTick->CTRL & SysTick_CTRL_ENABLE_Msk) != 0U) { SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk; } /* Enable instruction and data caches */ #if defined(__ICACHE_PRESENT) && __ICACHE_PRESENT if (SCB_CCR_IC_Msk != (SCB_CCR_IC_Msk & SCB->CCR)) { SCB_EnableICache(); } #endif /* Clear bit 13 to its reset value since it might be set by ROM. */ IOMUXC_GPR->GPR28 &= ~IOMUXC_GPR_GPR28_CACHE_USB_MASK; #if defined(ROM_ECC_ENABLED) /* When ECC is enabled, SRC->SRSR need to be cleared since only correct SRSR value can trigger ROM ECC preload procedure. Save SRSR to SRC->GPR[10] so that application can still check SRSR value from SRC->GPR[10]. */ SRC->GPR[10] = SRC->SRSR; /* clear SRSR */ SRC->SRSR = 0xFFFFFFFFU; #endif /* Enable entry to thread mode when divide by zero */ SCB->CCR |= SCB_CCR_DIV_0_TRP_Msk; __DSB(); __ISB(); SystemInitHook(); } /* ---------------------------------------------------------------------------- -- SystemCoreClockUpdate() ---------------------------------------------------------------------------- */ void SystemCoreClockUpdate (void) { /* TBD */ } /* ---------------------------------------------------------------------------- -- SystemInitHook() ---------------------------------------------------------------------------- */ __attribute__ ((weak)) void SystemInitHook (void) { /* Void implementation of the weak function. */ }