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HSP/QuadSPI/QuadSpi.h@0:832122ce6748, 2021-04-07 (annotated)
- Committer:
- darienf
- Date:
- Wed Apr 07 22:37:59 2021 +0000
- Revision:
- 0:832122ce6748
painnie
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| darienf | 0:832122ce6748 | 1 | /******************************************************************************* |
| darienf | 0:832122ce6748 | 2 | * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved. |
| darienf | 0:832122ce6748 | 3 | * |
| darienf | 0:832122ce6748 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| darienf | 0:832122ce6748 | 5 | * copy of this software and associated documentation files (the "Software"), |
| darienf | 0:832122ce6748 | 6 | * to deal in the Software without restriction, including without limitation |
| darienf | 0:832122ce6748 | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| darienf | 0:832122ce6748 | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| darienf | 0:832122ce6748 | 9 | * Software is furnished to do so, subject to the following conditions: |
| darienf | 0:832122ce6748 | 10 | * |
| darienf | 0:832122ce6748 | 11 | * The above copyright notice and this permission notice shall be included |
| darienf | 0:832122ce6748 | 12 | * in all copies or substantial portions of the Software. |
| darienf | 0:832122ce6748 | 13 | * |
| darienf | 0:832122ce6748 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| darienf | 0:832122ce6748 | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| darienf | 0:832122ce6748 | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| darienf | 0:832122ce6748 | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
| darienf | 0:832122ce6748 | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| darienf | 0:832122ce6748 | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| darienf | 0:832122ce6748 | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| darienf | 0:832122ce6748 | 21 | * |
| darienf | 0:832122ce6748 | 22 | * Except as contained in this notice, the name of Maxim Integrated |
| darienf | 0:832122ce6748 | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
| darienf | 0:832122ce6748 | 24 | * Products, Inc. Branding Policy. |
| darienf | 0:832122ce6748 | 25 | * |
| darienf | 0:832122ce6748 | 26 | * The mere transfer of this software does not imply any licenses |
| darienf | 0:832122ce6748 | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
| darienf | 0:832122ce6748 | 28 | * trademarks, maskwork rights, or any other form of intellectual |
| darienf | 0:832122ce6748 | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
| darienf | 0:832122ce6748 | 30 | * ownership rights. |
| darienf | 0:832122ce6748 | 31 | ******************************************************************************* |
| darienf | 0:832122ce6748 | 32 | */ |
| darienf | 0:832122ce6748 | 33 | #ifndef _QUADSPI_H_ |
| darienf | 0:832122ce6748 | 34 | #define _QUADSPI_H_ |
| darienf | 0:832122ce6748 | 35 | |
| darienf | 0:832122ce6748 | 36 | #include "mbed.h" |
| darienf | 0:832122ce6748 | 37 | |
| darienf | 0:832122ce6748 | 38 | |
| darienf | 0:832122ce6748 | 39 | |
| darienf | 0:832122ce6748 | 40 | |
| darienf | 0:832122ce6748 | 41 | /** |
| darienf | 0:832122ce6748 | 42 | * This class provides a Quad SPI interface for quad spi devices |
| darienf | 0:832122ce6748 | 43 | * the class also allows single (4-Wire) communication |
| darienf | 0:832122ce6748 | 44 | */ |
| darienf | 0:832122ce6748 | 45 | class QuadSPI : SPI { |
| darienf | 0:832122ce6748 | 46 | |
| darienf | 0:832122ce6748 | 47 | public: |
| darienf | 0:832122ce6748 | 48 | /** Create a QuadSPI master connected to the specified pins |
| darienf | 0:832122ce6748 | 49 | * |
| darienf | 0:832122ce6748 | 50 | * mosi or miso can be specfied as NC if not used |
| darienf | 0:832122ce6748 | 51 | * |
| darienf | 0:832122ce6748 | 52 | * @param mosi QuadSPI Master Out, Slave In pin |
| darienf | 0:832122ce6748 | 53 | * @param miso QuadSPI Master In, Slave Out pin |
| darienf | 0:832122ce6748 | 54 | * @param sclk QuadSPI Clock pin |
| darienf | 0:832122ce6748 | 55 | * @param ssel QuadSPI chip select pin |
| darienf | 0:832122ce6748 | 56 | */ |
| darienf | 0:832122ce6748 | 57 | QuadSPI(PinName mosi, PinName miso, PinName sclk, PinName ssel = NC); |
| darienf | 0:832122ce6748 | 58 | |
| darienf | 0:832122ce6748 | 59 | /** Write to the Quad SPI Slave and return the response |
| darienf | 0:832122ce6748 | 60 | * |
| darienf | 0:832122ce6748 | 61 | * @param value Data to be sent to the SPI slave |
| darienf | 0:832122ce6748 | 62 | * |
| darienf | 0:832122ce6748 | 63 | * @returns |
| darienf | 0:832122ce6748 | 64 | * none |
| darienf | 0:832122ce6748 | 65 | */ |
| darienf | 0:832122ce6748 | 66 | virtual int write(int value); |
| darienf | 0:832122ce6748 | 67 | |
| darienf | 0:832122ce6748 | 68 | /** Read from the Quad SPI Slave and return the response |
| darienf | 0:832122ce6748 | 69 | * |
| darienf | 0:832122ce6748 | 70 | * @param none |
| darienf | 0:832122ce6748 | 71 | * |
| darienf | 0:832122ce6748 | 72 | * @returns |
| darienf | 0:832122ce6748 | 73 | * Response from the SPI slave |
| darienf | 0:832122ce6748 | 74 | */ |
| darienf | 0:832122ce6748 | 75 | int read(void); |
| darienf | 0:832122ce6748 | 76 | |
| darienf | 0:832122ce6748 | 77 | /** Allow switching to and from Single SPI and Quad SPI |
| darienf | 0:832122ce6748 | 78 | * |
| darienf | 0:832122ce6748 | 79 | * @param none |
| darienf | 0:832122ce6748 | 80 | * |
| darienf | 0:832122ce6748 | 81 | * @returns |
| darienf | 0:832122ce6748 | 82 | * Response from the SPI slave |
| darienf | 0:832122ce6748 | 83 | */ |
| darienf | 0:832122ce6748 | 84 | void setSingleMode(); |
| darienf | 0:832122ce6748 | 85 | void setQuadMode(); |
| darienf | 0:832122ce6748 | 86 | }; |
| darienf | 0:832122ce6748 | 87 | |
| darienf | 0:832122ce6748 | 88 | #endif /* _QUADSPI_H_ */ |