Simplified access to Ramtron (Cypress) FM24Vxx F-RAM devices
FM24Vxx_SN.h@2:bf7d1264d3ff, 2013-04-13 (annotated)
- Committer:
- Yann
- Date:
- Sat Apr 13 14:23:41 2013 +0000
- Revision:
- 2:bf7d1264d3ff
- Parent:
- 1:6a16bddd7222
Added new Read method from Reed Kimble request
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Yann | 1:6a16bddd7222 | 1 | /* mbed simplified access to RAMTRON FV24xx Serial 3V F-RAM Memory (I2C) |
Yann | 1:6a16bddd7222 | 2 | * Copyright (c) 2013 ygarcia, MIT License |
Yann | 1:6a16bddd7222 | 3 | * |
Yann | 1:6a16bddd7222 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
Yann | 1:6a16bddd7222 | 5 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
Yann | 1:6a16bddd7222 | 6 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
Yann | 1:6a16bddd7222 | 7 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
Yann | 1:6a16bddd7222 | 8 | * furnished to do so, subject to the following conditions: |
Yann | 1:6a16bddd7222 | 9 | * |
Yann | 1:6a16bddd7222 | 10 | * The above copyright notice and this permission notice shall be included in all copies or |
Yann | 1:6a16bddd7222 | 11 | * substantial portions of the Software. |
Yann | 1:6a16bddd7222 | 12 | * |
Yann | 1:6a16bddd7222 | 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
Yann | 1:6a16bddd7222 | 14 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
Yann | 1:6a16bddd7222 | 15 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
Yann | 1:6a16bddd7222 | 16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
Yann | 1:6a16bddd7222 | 17 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
Yann | 1:6a16bddd7222 | 18 | */ |
Yann | 1:6a16bddd7222 | 19 | #if !defined(__FM24VXX_SN_H__) |
Yann | 1:6a16bddd7222 | 20 | #define __FM24VXX_SN_H__ |
Yann | 1:6a16bddd7222 | 21 | |
Yann | 1:6a16bddd7222 | 22 | #include <mbed.h> |
Yann | 1:6a16bddd7222 | 23 | //#include "Debug.h" |
Yann | 1:6a16bddd7222 | 24 | |
Yann | 1:6a16bddd7222 | 25 | namespace _FM24VXX_I2C { |
Yann | 1:6a16bddd7222 | 26 | |
Yann | 1:6a16bddd7222 | 27 | /** |
Yann | 1:6a16bddd7222 | 28 | * Device ID description |
Yann | 1:6a16bddd7222 | 29 | * @remark See FM24V10_ds Figure 14. Manufacturer and Product ID |
Yann | 1:6a16bddd7222 | 30 | */ |
Yann | 1:6a16bddd7222 | 31 | class CFM24VXX_SN { |
Yann | 1:6a16bddd7222 | 32 | |
Yann | 1:6a16bddd7222 | 33 | /** Serial number description |
Yann | 1:6a16bddd7222 | 34 | */ |
Yann | 1:6a16bddd7222 | 35 | union { // See FM24V10_ds Figure 15. 8-Byte Serial Number (read-only) |
Yann | 1:6a16bddd7222 | 36 | unsigned char snumber[8]; |
Yann | 1:6a16bddd7222 | 37 | struct { |
Yann | 1:6a16bddd7222 | 38 | unsigned char crc; |
Yann | 1:6a16bddd7222 | 39 | unsigned char un[5]; |
Yann | 1:6a16bddd7222 | 40 | unsigned char cid[2]; |
Yann | 1:6a16bddd7222 | 41 | } sn; |
Yann | 1:6a16bddd7222 | 42 | } _sn; |
Yann | 1:6a16bddd7222 | 43 | |
Yann | 1:6a16bddd7222 | 44 | public: |
Yann | 1:6a16bddd7222 | 45 | inline CFM24VXX_SN(const unsigned char *pdatas) { |
Yann | 1:6a16bddd7222 | 46 | // for (int i = 0; i < 8; i++) { |
Yann | 1:6a16bddd7222 | 47 | // DEBUG("CFM24VXX_SN::CFM24VXX_SN: byte #%d = 0x%02x", i, *(pdatas + i)) |
Yann | 1:6a16bddd7222 | 48 | // } |
Yann | 1:6a16bddd7222 | 49 | memcpy((void *)&(_sn.snumber[0]), pdatas, 8 * sizeof(unsigned char)); |
Yann | 1:6a16bddd7222 | 50 | } // End of Constructor |
Yann | 1:6a16bddd7222 | 51 | |
Yann | 1:6a16bddd7222 | 52 | inline unsigned short GetCustomerID() const { return _sn.sn.cid[0] << 8 | _sn.sn.cid[1]; }; |
Yann | 1:6a16bddd7222 | 53 | |
Yann | 1:6a16bddd7222 | 54 | inline unsigned char * GetUniqueID() const { return (unsigned char *)&(_sn.sn.un[0]); }; |
Yann | 1:6a16bddd7222 | 55 | |
Yann | 1:6a16bddd7222 | 56 | inline unsigned char GetChecksum() const { return _sn.sn.crc; }; |
Yann | 1:6a16bddd7222 | 57 | |
Yann | 1:6a16bddd7222 | 58 | }; // End of class CFM24VXX_SN |
Yann | 1:6a16bddd7222 | 59 | |
Yann | 1:6a16bddd7222 | 60 | } // End of namespace _FM24VXX_I2C |
Yann | 1:6a16bddd7222 | 61 | |
Yann | 1:6a16bddd7222 | 62 | #endif // __FM24VXX_SN_H__ |