forked driver
Dependents: ESHD_L475VG_IOT01-Sensors-BSP
MB85RSxx_SPI.cpp
- Committer:
- stillChris
- Date:
- 2019-08-30
- Revision:
- 3:f31e1990e1f3
- Parent:
- 2:9a0f9faada7f
File content as of revision 3:f31e1990e1f3:
/** ****************************************************************************** * @file MB85RSxx_SPI.cpp * @author APS Lab * @version V1.0.0 * @date 26 June 2017 * @brief MB85RSxx_SPI class implementation ****************************************************************************** * @attention * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "mbed.h" #include "MB85RSxx_SPI.h" MB85RSxx_SPI::MB85RSxx_SPI(PinName mosi, PinName miso, PinName sclk, PinName nss) : _spi_p(new SPI(mosi, miso, sclk)), _spi(*_spi_p), _di_p(new DigitalOut(nss)), _di(*_di_p) { char sts; printf("SPI pointer %x\n", _spi_p); printf("SPI_CS pointer %x\n", _di_p); _spi.format(8,0); _spi.frequency(2000000); _spi.write(RDID); for(int i=0; i<8; i++) { sts=_spi.write(0x00); printf("byte%i %x\n", i, sts); } printf("\n\n"); } MB85RSxx_SPI::~MB85RSxx_SPI() { if (NULL != _spi_p) delete _spi_p; } void MB85RSxx_SPI::Init(void) { char sts; _di=0; _spi.write(WRDI); _di=1; wait(0.2); _di=0; _spi.write(WREN); _di=1; wait(0.2); _di=0; _spi.write(WRSR); _spi.write(SR_WEL); _di=1; wait(0.2); _di=0; _spi.write(RDSR); sts=_spi.write(0x00); _di=1; printf("FRAM Status %x\n", sts); } void MB85RSxx_SPI::write(uint32_t address, char data) { _di=0; _spi.write(WREN); _di=1; _di=0; _spi.write(WRITE); _spi.write((address & 0x3F00) >> 8);//Addr H for 64Kbits _spi.write((address & 0x00FF)); //Addr L for 64Kbits _spi.write(data); //Write Data _di=1; } char MB85RSxx_SPI::read(uint32_t address) { char ch; _di=0; _spi.write(READ); _spi.write((address & 0x3F00) >> 8);//Addr H for 64Kbits _spi.write((address & 0x00FF)); //Addr L for 64Kbits ch = _spi.write(0x00);//Write dummy 0x00, Reade Data _di=1; return ch; } void MB85RSxx_SPI::write(uint32_t address, char *data, uint32_t length) { int idx; for(idx=0; idx < length; idx++) { MB85RSxx_SPI::write(address+idx, *(data+idx)); } } void MB85RSxx_SPI::read(uint32_t address, char *data, uint32_t length) { uint32_t idx; for(idx=0; idx < length; idx++) { *(data+idx) = MB85RSxx_SPI::read(address+idx); } }