4901cb1a09
- cachedStorage is functional - Presets can be loaded from FLASH - CRC32 added and applied - Presets with corrputed data will be replaced by default preset Next: Preset update functionality from menu git-svn-id: https://svn.vbchaos.nl/svn/hsb/trunk@269 05563f52-14a8-4384-a975-3d1654cca0fa
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
// -----------------------------------------------------------------------------
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/// @file crc32.c
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/// @brief Description
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// -----------------------------------------------------------------------------
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// Micro-Key bv
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// Industrieweg 28, 9804 TG Noordhorn
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// Postbus 92, 9800 AB Zuidhorn
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// The Netherlands
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// Tel: +31 594 503020
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// Fax: +31 594 505825
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// Email: support@microkey.nl
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// Web: www.microkey.nl
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// -----------------------------------------------------------------------------
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/// $Revision$
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/// $Author$
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/// $Date$
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// (c) 2017 Micro-Key bv
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// -----------------------------------------------------------------------------
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/// @file crc32.c
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/// @ingroup {group_name}
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// -----------------------------------------------------------------------------
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// Include files
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// -----------------------------------------------------------------------------
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#include "crc32.h"
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// -----------------------------------------------------------------------------
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// Constant and macro definitions
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// Type definitions
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// File-scope variables
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// Function declarations
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// -----------------------------------------------------------------------------
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// -----------------------------------------------------------------------------
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// Function definitions
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// -----------------------------------------------------------------------------
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uint32_t crc32_calculate(uint32_t crc, const void* buffer, size_t size)
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{
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const uint8_t *p;
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p = buffer;
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crc = crc ^ ~0U;
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while (size--)
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crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
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return crc ^ ~0U;
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}
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