main
Last change
on this file since 6c47e45 was 16cf6ff, checked in by Adrien Destugues <pulkomandy@…>, 12 years ago |
Add some suport for reading 27c020 chips.
Should be usable with most other ROMs as well.
git-svn-id: svn://pulkomandy.tk/avrstuff@61 c6672c3c-f6b6-47f9-9001-1fd6b12fecbe
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Property mode
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File size:
1.0 KB
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[16cf6ff] | 1 | #include "27c020.h"
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| 2 |
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| 3 | #include <stdio.h>
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| 4 | #include <unistd.h>
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| 5 |
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| 6 |
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| 7 | x27C020::x27C020()
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| 8 | : Device()
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| 9 | {
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| 10 | }
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| 11 |
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| 12 | void x27C020::power()
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| 13 | {
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| 14 | Device::write(CTRL, 0b10011111 | CTRLmask);
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| 15 | Device::write(VOLT, 0b11001000 | VOLTmask);
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| 16 | outb(port + 2, NONE);
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| 17 | }
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| 18 |
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| 19 | void x27C020::read(const char* filename)
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| 20 | {
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| 21 | for (int address = 0; address < 256*1024; address++)
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| 22 | {
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| 23 | Device::write(VOLT, DOE | VOLTmask);
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| 24 | Device::write(CTRL, CE | OE | WE | A17 | CTRLmask);
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| 25 | usleep(1000);
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| 26 |
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| 27 | Device::write(ADR0, address);
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| 28 | usleep(1000);
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| 29 | Device::write(ADR1, address >> 8);
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| 30 | usleep(1000);
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| 31 | // TODO A16, A17
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| 32 | Device::write(CTRL, WE | A17 | CTRLmask);
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| 33 | usleep(1000);
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| 34 | uint8_t val = Device::read();
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| 35 | Device::write(CTRL, CE | OE | WE | A17 | CTRLmask);
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| 36 |
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| 37 | // TODO write to file, or stdout if file is null
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| 38 | putc(val, stdout);
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| 39 | // TODO flush every 512 bytes or so
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| 40 | fflush(stdout);
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| 41 | }
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| 42 | }
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| 43 |
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| 44 | void x27C020::write(const char* filename)
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| 45 | {
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| 46 | // TODO support it !
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| 47 | puts("Writing not supported");
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| 48 | }
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| 49 |
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| 50 | void x27C020::erase(void)
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| 51 | {
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| 52 | // TODO return error
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| 53 | puts("Erasing not supported");
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| 54 | }
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| 55 |
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