Non-volatile RAM¶
Non-volatile RAM interface.
This API is designed around non-volatile memories which do not need blockwise erase, such as ferro-electric RAM (FRAM) or magneto-resistive RAM (MRAM).
This interface is not suitable for flash memories.
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struct
nvram
¶ Device descriptor for generic NVRAM devices.
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int(*
read
()¶ Pointer to device-specific read function.
Copy data from system memory to NVRAM.
Parameters
dev: Pointer to NVRAM device descriptor dst: Pointer to the first byte in the system memory address space src: Starting address in the NVRAM device address space len: Number of bytes to copy Return values
- Number of bytes read on success
- <0 on errors
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int(*
write
()¶ Pointer to device-specific write function.
Copy data from NVRAM to system memory.
Parameters
dev: Pointer to NVRAM device descriptor src: Pointer to the first byte in the system memory address space dst: Starting address in the NVRAM device address space len: Number of bytes to copy Return values
- Number of bytes written on success
- <0 on errors
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msp430_types.h::size_t
size
¶ Device capacity.
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void *
extra
¶ Device-specific parameters, if any.
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int(*