main
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Last change
on this file was a6ae6ac, checked in by Adrien Destugues <pulkomandy@…>, 12 years ago |
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Still not working...
Added very agressive timing, fixed some potential glitches, but still not enough to even read the device ID !
git-svn-id: svn://pulkomandy.tk/avrstuff@60 c6672c3c-f6b6-47f9-9001-1fd6b12fecbe
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Property mode
set to
100644
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File size:
866 bytes
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| 1 | #include "device.h"
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| 2 |
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| 3 | class AT29C040: public Device
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| 4 | {
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| 5 | public:
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| 6 | AT29C040();
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| 7 |
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| 8 | void power(void);
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| 9 | void shutdown(void);
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| 10 | void read(const char* filename);
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| 11 | void write(const char* filename);
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| 12 | void erase(void);
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| 13 | private:
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| 14 | bool checkId(void);
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| 15 |
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| 16 | // Write a byte to a 16-bit address (bits 16 17 18 are 0)
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| 17 | inline void wr16(uint16_t addr, uint8_t val)
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| 18 | {
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| 19 | Device::write(CTRL, A17 | CE | WE | OE | CTRLmask);
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| 20 | usleep(10000);
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| 21 |
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| 22 | Device::write(ADR1, (addr >> 8) ^ A13);
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| 23 | usleep(10000);
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| 24 | Device::write(ADR0, addr);
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| 25 | usleep(10000);
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| 26 |
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| 27 | Device::write(DATA, val);
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| 28 | usleep(10000);
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| 29 | Device::write(CTRL, A17 | OE | CTRLmask);
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| 30 | usleep(10000);
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| 31 |
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| 32 | printf("W %X %X", addr, val);
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| 33 | getchar();
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| 34 | Device::write(CTRL, A17 | CE | WE | OE | CTRLmask);
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| 35 | usleep(10000);
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| 36 | }
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| 37 |
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| 38 | static const uint8_t CTRLmask = 0b01100000;
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| 39 | static const uint8_t VOLTmask = 0b10110011;
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| 40 | };
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| 41 |
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