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Diffstat (limited to 'examples/imx7d_val_m4/demo_apps/ecspi_flash_demo/spi_memory.h')
-rw-r--r-- | examples/imx7d_val_m4/demo_apps/ecspi_flash_demo/spi_memory.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/examples/imx7d_val_m4/demo_apps/ecspi_flash_demo/spi_memory.h b/examples/imx7d_val_m4/demo_apps/ecspi_flash_demo/spi_memory.h new file mode 100644 index 0000000..4bbaf1d --- /dev/null +++ b/examples/imx7d_val_m4/demo_apps/ecspi_flash_demo/spi_memory.h @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o Redistributions in binary form must reproduce the above copyright notice, this + * list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __SPI_MEMORY_H__ +#define __SPI_MEMORY_H__ + +/* Number of bytes used for addressing within memory */ +#define SPI_MEMORY_ADDRESS_BYTES 3 + +/* Memory page size - maximum bytes per write */ +#define SPI_MEMORY_PAGE_SIZE 0x0100 + +/* The SPI serial memory test addresses */ +#define SPI_MEMORY_ADDR1 0x000020 /* test address 1 */ +#define SPI_MEMORY_ADDR2 0x000120 /* test address 2 */ +#define SPI_MEMORY_ADDR3 0x000220 /* test address 3 */ + +/* The SPI serial memory instructions */ +#define SPI_MEMORY_WRITE_ENABLE 0x06 +#define SPI_MEMORY_WRITE_DISABLE 0x04 +#define SPI_MEMORY_READ_STATUS 0x05 +#define SPI_MEMORY_WRITE_STATUS 0x01 +#define SPI_MEMORY_READ_DATA 0x03 +#define SPI_MEMORY_PAGE_PROGRAM 0x02 +#define SPI_MEMORY_BULK_ERASE 0xC7 + +#ifdef __cplusplus +extern "C" { +#endif + +/* Funtion prototypes */ +uint8_t M25P32_ReadStatus(void); +void M25P32_SetWriteEnable(bool enable); +void M25P32_SetProtection(bool protect); +void M25P32_EraseChip(void); +uint32_t M25P32_WriteData(uint32_t addr, uint32_t size, uint8_t* data); +uint32_t M25P32_ReadData(uint32_t addr, uint32_t size, uint8_t* data); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* __SPI_MEMORY_H__ */ + +/******************************************************************************* + * EOF + ******************************************************************************/ |