init:初始框架

2026-06-06 20:50:54 +08:00
commit b5be64b642
685 changed files with 398844 additions and 0 deletions
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2020, Texas Instruments Incorporated
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * *  Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * *  Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * *  Neither the name of Texas Instruments Incorporated nor the names of
+ *    its contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*!****************************************************************************
+ *  @file       dl_common.h
+ *  @brief      DriverLib Common APIs
+ *  @defgroup   DLCommon DriverLib Common APIs
+ *
+ *  @anchor ti_dl_dl_common_Overview
+ *  # Overview
+ *
+ *  APIs used across multiple DriverLib modules
+ *
+ *  <hr>
+ ******************************************************************************/
+/** @addtogroup DLCommon
+ * @{
+ */
+#ifndef ti_dl_dl_common__include
+#define ti_dl_dl_common__include
+
+#include <ti/devices/msp/msp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Writes value to specified register - retaining bits unaffected by mask.
+ *
+ * @param[in] reg     Pointer to the register overlay for the peripheral.
+ * @param[in] val     Value to be written to the register.
+ * @param[in] mask    Mask defines which bits will be altered.
+ */
+__STATIC_INLINE void DL_Common_updateReg(
+    volatile uint32_t *reg, uint32_t val, uint32_t mask)
+{
+    uint32_t tmp;
+
+    tmp  = *reg;
+    tmp  = tmp & ~mask;
+    *reg = tmp | (val & mask);
+}
+
+/**
+ * @brief   Consumes the number of CPU cycles specified.
+ *
+ * @param[in] cycles  Floor number of cycles to delay.
+ *                    Specifying zero will result in the maximum
+ *                    possible delay. Note that guarantees at least
+ *                    this number of cycles will be delayed,
+ *                    not that exactly this number of cycles will be
+ *                    delayed. If a more precise number of cycle delay value
+ *                    is needed, GPTimer is recommended.
+ *
+ *                    Typical variance from this function is 10 cycles or
+ *                    less assuming that the function is located in flash and
+ *                    that caching is enabled. Disabling caching may result in
+ *                    wait-states when fetching from flash.
+ *                    Other variance occurs due:
+ *                      - Amount of register stacking/unstacking around API entry/exit
+ *                      - Value of cycles relative to 4-cycle loop counter
+ *                      - Placement of code on a 2- or 4-byte aligned boundary
+ */
+void DL_Common_delayCycles(uint32_t cycles);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ti_dl_dl_common__include */
+/** @}*/