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Update README.md
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danriches authored Sep 18, 2022
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Expand Up @@ -3,14 +3,16 @@ Arduino Mega 2560 SST39SF040 Flash Chip programmer

This was taken from an example which only wrote to one address. I've added more code to process commands and also allow writing manually in a terminal window.

SST39SF040 Pins Arduino Mega 2560 Pins
A0 to A18 22 to 40
D0 to D7 44 to 51
#WE 2
#OE 3
#CS GND
Vss GND
Vdd +5v
| SST39SF040 Pins | Arduino Mega 2560 Pins |
|-----------------------|-------------------------------|
| A0 to A18 | 22 to 40. |
| D0 to D7 | 44 to 51. |
| #WE | 2. |
| #OE | 3. |
| #CS | GND. |
| Vss | GND. |
| Vdd | +5v. |
|-----------------------|-------------------------------|

The commands are formatted as follows:

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