Log system based on external FRAM storage. Allow to collect float values in FRAM, and then store whole collection into file on flash.
Sample code
#include "mbed.h" #include "FRAMLog.h" SPI spi(p5,p6,p7); FRAMLog flog(spi, p8, 4, 2048); Serial pc(USBTX, USBRX); int main() { for( int i=0; i<2048; i++){ flog.log(i/4096.0); flog.log(i/(4096.0+1)); flog.log(i/(4096.0+2)); flog.log(i/(4096.0+3)); } flog.save(); }
FRAMLog.h@1:4e5cda0920d3, 2012-10-21 (annotated)
- Committer:
- Decimus
- Date:
- Sun Oct 21 20:29:57 2012 +0000
- Revision:
- 1:4e5cda0920d3
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Decimus | 1:4e5cda0920d3 | 1 | /* Log system for FRAM+FLASH |
Decimus | 1:4e5cda0920d3 | 2 | * Copyright (c) 2012 Oleg Evsegneev |
Decimus | 1:4e5cda0920d3 | 3 | * Released under the MIT License: http://mbed.org/license/mit |
Decimus | 1:4e5cda0920d3 | 4 | */ |
Decimus | 1:4e5cda0920d3 | 5 | |
Decimus | 1:4e5cda0920d3 | 6 | #ifndef MBED_FILELOG_H |
Decimus | 1:4e5cda0920d3 | 7 | #define MBED_FILELOG_H |
Decimus | 1:4e5cda0920d3 | 8 | |
Decimus | 1:4e5cda0920d3 | 9 | #include "mbed.h" |
Decimus | 1:4e5cda0920d3 | 10 | #include "FRAMSPI.h" |
Decimus | 1:4e5cda0920d3 | 11 | |
Decimus | 1:4e5cda0920d3 | 12 | #define LOG_FILE "/local/log.txt" |
Decimus | 1:4e5cda0920d3 | 13 | |
Decimus | 1:4e5cda0920d3 | 14 | /* FRAM log system main class |
Decimus | 1:4e5cda0920d3 | 15 | * |
Decimus | 1:4e5cda0920d3 | 16 | * @code |
Decimus | 1:4e5cda0920d3 | 17 | * #include "mbed.h" |
Decimus | 1:4e5cda0920d3 | 18 | * #include "FRAMLog.h" |
Decimus | 1:4e5cda0920d3 | 19 | * |
Decimus | 1:4e5cda0920d3 | 20 | * SPI spi(p5,p6,p7); |
Decimus | 1:4e5cda0920d3 | 21 | * FRAMLog flog(spi, p8, 4, 2048); |
Decimus | 1:4e5cda0920d3 | 22 | * Serial pc(USBTX, USBRX); |
Decimus | 1:4e5cda0920d3 | 23 | * |
Decimus | 1:4e5cda0920d3 | 24 | * int main() { |
Decimus | 1:4e5cda0920d3 | 25 | * for( int i=0; i<2048; i++){ |
Decimus | 1:4e5cda0920d3 | 26 | * flog.log(i/4096.0); |
Decimus | 1:4e5cda0920d3 | 27 | * flog.log(i/(4096.0+1)); |
Decimus | 1:4e5cda0920d3 | 28 | * flog.log(i/(4096.0+2)); |
Decimus | 1:4e5cda0920d3 | 29 | * flog.log(i/(4096.0+3)); |
Decimus | 1:4e5cda0920d3 | 30 | * } |
Decimus | 1:4e5cda0920d3 | 31 | * flog.save(); |
Decimus | 1:4e5cda0920d3 | 32 | * } |
Decimus | 1:4e5cda0920d3 | 33 | * @endcode |
Decimus | 1:4e5cda0920d3 | 34 | */ |
Decimus | 1:4e5cda0920d3 | 35 | |
Decimus | 1:4e5cda0920d3 | 36 | class FRAMLog { |
Decimus | 1:4e5cda0920d3 | 37 | |
Decimus | 1:4e5cda0920d3 | 38 | public: |
Decimus | 1:4e5cda0920d3 | 39 | FRAMLog( SPI& spi, PinName ncs, short cols, short rows ); |
Decimus | 1:4e5cda0920d3 | 40 | |
Decimus | 1:4e5cda0920d3 | 41 | /** Set new value to log |
Decimus | 1:4e5cda0920d3 | 42 | * |
Decimus | 1:4e5cda0920d3 | 43 | * @param value Value of log entry. |
Decimus | 1:4e5cda0920d3 | 44 | */ |
Decimus | 1:4e5cda0920d3 | 45 | void log( float val ); |
Decimus | 1:4e5cda0920d3 | 46 | |
Decimus | 1:4e5cda0920d3 | 47 | /** Save log to file on flash |
Decimus | 1:4e5cda0920d3 | 48 | * |
Decimus | 1:4e5cda0920d3 | 49 | */ |
Decimus | 1:4e5cda0920d3 | 50 | void save(); |
Decimus | 1:4e5cda0920d3 | 51 | |
Decimus | 1:4e5cda0920d3 | 52 | protected: |
Decimus | 1:4e5cda0920d3 | 53 | FRAMSPI _fram; |
Decimus | 1:4e5cda0920d3 | 54 | LocalFileSystem _local; |
Decimus | 1:4e5cda0920d3 | 55 | unsigned short _addr; |
Decimus | 1:4e5cda0920d3 | 56 | short _cols; |
Decimus | 1:4e5cda0920d3 | 57 | short _rows; |
Decimus | 1:4e5cda0920d3 | 58 | short _row; |
Decimus | 1:4e5cda0920d3 | 59 | void toArray( float val, char *bytes ); |
Decimus | 1:4e5cda0920d3 | 60 | float fromArray( char *bytes ); |
Decimus | 1:4e5cda0920d3 | 61 | }; |
Decimus | 1:4e5cda0920d3 | 62 | |
Decimus | 1:4e5cda0920d3 | 63 | #endif |