初始版本

2025-08-19 09:49:41 +08:00
parent 10f1ddf1c1
commit 6df0f7d96e
2974 changed files with 1712873 additions and 54 deletions
--- a/modules/nrfx/mdk/system_nrf5340_network.c
+++ b/modules/nrfx/mdk/system_nrf5340_network.c
@@ -0,0 +1,89 @@
+/*
+
+Copyright (c) 2009-2020 ARM Limited. All rights reserved.
+
+    SPDX-License-Identifier: Apache-2.0
+
+Licensed under the Apache License, Version 2.0 (the License); you may
+not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an AS IS BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+NOTICE: This file has been modified by Nordic Semiconductor ASA.
+
+*/
+
+/* NOTE: Template files (including this one) are application specific and therefore expected to
+   be copied into the application project folder prior to its use! */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "nrf.h"
+#include "nrf_erratas.h"
+#include "system_nrf5340_network.h"
+
+/*lint ++flb "Enter library region" */
+
+
+#define __SYSTEM_CLOCK      (64000000UL)     /*!< NRF5340 network core uses a fixed System Clock Frequency of 32MHz */
+
+#if defined ( __CC_ARM )
+    uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK;  
+#elif defined ( __ICCARM__ )
+    __root uint32_t SystemCoreClock = __SYSTEM_CLOCK;
+#elif defined   ( __GNUC__ )
+    uint32_t SystemCoreClock __attribute__((used)) = __SYSTEM_CLOCK;
+#endif
+
+void SystemCoreClockUpdate(void)
+{
+    SystemCoreClock = __SYSTEM_CLOCK;
+}
+
+void SystemInit(void)
+{
+    /* Trimming of the device. Copy all the trimming values from FICR into the target addresses. Trim
+     until one ADDR is not initialized. */
+    uint32_t index = 0;
+    for (index = 0; index < 32ul && NRF_FICR_NS->TRIMCNF[index].ADDR != (uint32_t *)0xFFFFFFFFul; index++){
+        #if defined ( __ICCARM__ )
+            /* IAR will complain about the order of volatile pointer accesses. */
+            #pragma diag_suppress=Pa082
+        #endif
+        *NRF_FICR_NS->TRIMCNF[index].ADDR = NRF_FICR_NS->TRIMCNF[index].DATA;
+        #if defined ( __ICCARM__ )
+            #pragma diag_default=Pa082
+        #endif
+    }
+
+    /* Workaround for Errata 49 "SLEEPENTER and SLEEPEXIT events asserted after pin reset" found at the Errata document
+       for your device located at https://infocenter.nordicsemi.com/index.jsp  */
+    if (nrf53_errata_49())
+    {
+        if (NRF_RESET_NS->RESETREAS & RESET_RESETREAS_RESETPIN_Msk)
+        {
+            NRF_POWER_NS->EVENTS_SLEEPENTER = 0;
+            NRF_POWER_NS->EVENTS_SLEEPEXIT = 0;
+        }
+    }
+
+    /* Workaround for Errata 55 "Bits in RESETREAS are set when they should not be" found at the Errata document
+       for your device located at https://infocenter.nordicsemi.com/index.jsp  */
+    if (nrf53_errata_55())
+    {
+        if (NRF_RESET_NS->RESETREAS & RESET_RESETREAS_RESETPIN_Msk){
+            NRF_RESET_NS->RESETREAS = ~RESET_RESETREAS_RESETPIN_Msk;
+        }
+    }    
+
+    SystemCoreClockUpdate();
+}
+
+/*lint --flb "Leave library region" */