From b5a130afb51c971fd7ceca8834b6055f1eada253 Mon Sep 17 00:00:00 2001 From: Federico Fissore Date: Mon, 6 Jul 2015 15:18:33 +0200 Subject: Examples: mass code format. See example_formatter.conf --- .../EEPROM/examples/eeprom_crc/eeprom_crc.ino | 46 +++++++++++----------- 1 file changed, 24 insertions(+), 22 deletions(-) (limited to 'libraries/EEPROM/examples/eeprom_crc') diff --git a/libraries/EEPROM/examples/eeprom_crc/eeprom_crc.ino b/libraries/EEPROM/examples/eeprom_crc/eeprom_crc.ino index 8461d56..d14b4b3 100644 --- a/libraries/EEPROM/examples/eeprom_crc/eeprom_crc.ino +++ b/libraries/EEPROM/examples/eeprom_crc/eeprom_crc.ino @@ -1,7 +1,7 @@ /*** Written by Christopher Andrews. CRC algorithm generated by pycrc, MIT licence ( https://github.com/tpircher/pycrc ). - + A CRC is a simple way of checking whether data has changed or become corrupted. This example calculates a CRC value directly on the EEPROM values. The purpose of this example is to highlight how the EEPROM object can be used just like an array. @@ -10,8 +10,8 @@ #include #include -void setup(){ - +void setup() { + //Start serial Serial.begin(9600); while (!Serial) { @@ -19,31 +19,33 @@ void setup(){ } //Print length of data to run CRC on. - Serial.print( "EEPROM length: " ); - Serial.println( EEPROM.length() ); - + Serial.print("EEPROM length: "); + Serial.println(EEPROM.length()); + //Print the result of calling eeprom_crc() - Serial.print( "CRC32 of EEPROM data: 0x" ); - Serial.println( eeprom_crc(), HEX ); - Serial.print( "\n\nDone!" ); + Serial.print("CRC32 of EEPROM data: 0x"); + Serial.println(eeprom_crc(), HEX); + Serial.print("\n\nDone!"); } -void loop(){ /* Empty loop */ } +void loop() { + /* Empty loop */ +} + +unsigned long eeprom_crc(void) { -unsigned long eeprom_crc( void ){ - const unsigned long crc_table[16] = { - 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, - 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, - 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, - 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c - }; - + 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, + 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, + 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, + 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c + }; + unsigned long crc = ~0L; - - for( int index = 0 ; index < EEPROM.length() ; ++index ){ - crc = crc_table[( crc ^ EEPROM[index] ) & 0x0f] ^ (crc >> 4); - crc = crc_table[( crc ^ ( EEPROM[index] >> 4 )) & 0x0f] ^ (crc >> 4); + + for (int index = 0 ; index < EEPROM.length() ; ++index) { + crc = crc_table[(crc ^ EEPROM[index]) & 0x0f] ^ (crc >> 4); + crc = crc_table[(crc ^ (EEPROM[index] >> 4)) & 0x0f] ^ (crc >> 4); crc = ~crc; } return crc; -- cgit v1.2.3-18-g5258