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When enabled, removes log_len and log_addr fields from log_idx_data structure, saving 8 bytes per TSL entry. The log address is instead calculated at runtime based on the TSL's position within the sector. This optimization is ideal for applications logging fixed-size data (e.g., single temperature as float + timestamp) where the 8-byte overhead per entry becomes significant with large numbers of entries. Changes: - Conditionally exclude log_len/log_addr from log_idx_data struct - Calculate log address dynamically in read_tsl() when enabled - Add strict size validation in tsl_append() - Maintain backward compatibility via conditional compilation
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
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* Copyright (c) 2020, Armink, <armink.ztl@gmail.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief configuration template file. You need to rename the file to "fbd_cfg.h" and modify the configuration items in it to suit your use.
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*/
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#ifndef _FDB_CFG_H_
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#define _FDB_CFG_H_
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/* using KVDB feature */
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#define FDB_USING_KVDB
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#ifdef FDB_USING_KVDB
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/* Auto update KV to latest default when current KVDB version number is changed. @see fdb_kvdb.ver_num */
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/* #define FDB_KV_AUTO_UPDATE */
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#endif
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/* using TSDB (Time series database) feature */
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#define FDB_USING_TSDB
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/* Use fixed-size blobs in TSDB to save flash overhead (8 bytes per entry).
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* Define this to the fixed blob size in bytes when all TSL entries are the same size.
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* Ideal for logging fixed-size sensor data (e.g., float + timestamp).
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* Warning: If defined will be incompatible with variable blob flash store or if fixed blob size is later changed */
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/* #define FDB_TSDB_FIXED_BLOB_SIZE 4 */
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/* Using FAL storage mode */
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#define FDB_USING_FAL_MODE
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#ifdef FDB_USING_FAL_MODE
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/* the flash write granularity, unit: bit
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* only support 1(nor flash)/ 8(stm32f2/f4)/ 32(stm32f1)/ 64(stm32f7)/ 128(stm32h5) */
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#define FDB_WRITE_GRAN /* @note you must define it for a value */
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#endif
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/* Using file storage mode by LIBC file API, like fopen/fread/fwrte/fclose */
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/* #define FDB_USING_FILE_LIBC_MODE */
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/* Using file storage mode by POSIX file API, like open/read/write/close */
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/* #define FDB_USING_FILE_POSIX_MODE */
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/* MCU Endian Configuration, default is Little Endian Order. */
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/* #define FDB_BIG_ENDIAN */
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/* log print macro. default EF_PRINT macro is printf() */
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/* #define FDB_PRINT(...) my_printf(__VA_ARGS__) */
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/* print debug information */
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#define FDB_DEBUG_ENABLE
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#endif /* _FDB_CFG_H_ */
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