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EEPROM programmer for GE Phoenix SX Radios WWW: http://members.shaw.ca/swstuff/phoenix2212.html PR: ports/169090 Submitted by: Stephen Hurd <shurd at sasktel.net>
38 lines
2.1 KiB
Plaintext
38 lines
2.1 KiB
Plaintext
X2212 programmer schematic
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Parallel port X2212 / X22C12 eeprom
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2 (D0) ------------+---------------------------------------- 6 (A0)
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3 (D1) ----------+-|---------------------------------------- 5 (A1)
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4 (D2) --------+-|-|---------------------------------------- 4 (A2)
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5 (D3) ------+-|-|-|---------------------------------------- 3 (A3)
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6 (D4) ------|-|-|-|---------------------------------------- 2 (A4)
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7 (D5) ------|-|-|-|---------------------------------------- 16 (A5)
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8 (D6) ------|-|-|-|---------------------------------------- 17 (A6)
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9 (D7) ------|-|-|-|---------------------------------------- 1 (A7)
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| | | | +------------+
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| | | +--|3 d0 q0 2|-------+---------------- 12 (D0)
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| | +----|4 d1 q1 5|-------|-+-------------- 13 (D1)
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| +------|7 d2 q2 6|-------|-|-+------------ 14 (D2)
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+--------|8 d3 q3 9|-------|-|-|-+---------- 15 (D3)
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+--|1 /OE LE 11|--+ | | | |
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| +------------+ | | | | |
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| 74xx373 or 374 | | | | |
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1 (/C0) -----------+------------------+----|-|-|-|---------- 11 (/WE)
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15 (S3) -----------------------------------+ | | |
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13 (S4) -------------------------------------+ | |
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12 (S5) ---------------------------------------+ |
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10 (S6) -----------------------------------------+
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14 (/C1) --------------------------------------------------> 7 (/CS)
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16 (C2) --------------------------------------------------> 9 (/STORE)
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17 (/C3) --------------------------------------------------> 10 (/RECALL)
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Also connect grounds: pins 18-25 on LPTx -> pin 10 on '373 -> pin 8 on 2212
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Connect 5V to pin 20 on '373, and pin 18 on 2212. If you dont trust your
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5v supply, put a 5.1v zener across the X2212 power pins and use a 10ohm
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quarter watt resistor in series with the plus supply lead. This may save
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the logic chips if you hook it up to 12 volts by mistake (it will certainly
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let you know by letting the smoke out of the resistor!).
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