mirror of https://github.com/ArduPilot/ardupilot
37 lines
813 B
C
37 lines
813 B
C
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/*
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driver for RAMTRON FRAM persistent memory devices
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*/
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#pragma once
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#include <AP_Common/AP_Common.h>
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#include <AP_HAL/AP_HAL.h>
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class AP_RAMTRON {
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public:
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// initialise the driver
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bool init(void);
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// get size in bytes
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uint32_t get_size(void) const { return ramtron_ids[id].size_kbyte*1024UL; }
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// read from device
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bool read(uint32_t offset, uint8_t *buf, uint32_t size);
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// write to device
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bool write(uint32_t offset, const uint8_t *buf, uint32_t size);
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private:
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AP_HAL::OwnPtr<AP_HAL::SPIDevice> dev;
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struct ramtron_id {
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uint8_t id1, id2;
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uint16_t size_kbyte;
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uint8_t addrlen;
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};
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static const struct ramtron_id ramtron_ids[];
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uint8_t id;
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// send offset of transfer
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void send_offset(uint8_t cmd, uint32_t offset);
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};
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