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About
Instructions to download programs to (some) Intel MCS-51 compatible MCUs.
Parts
AT89S51
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Note
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Same applies to AT89S52. |
STC89C51RC
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Note
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Same applies to STC89C52RC and STC12C5A6S2. |
Dependencies
Hardware
AT89S51, AT89S52
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Arduino board (e.g. Nano, Micro, etc.) — 1 piece
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Microcontroller — 1 piece
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Breadboard — 2 pieces
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Jumper wires — ~20 pieces
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LEDs — 1 red, 1 green, 1 yellow, 1 white
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1-10kΩ resistors — 2 pieces
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8-33MHz quartz crystal — 1 piece
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22pF capacitors — 2 pieces
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10-pin ribbon cable — 1 piece
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10-pin to 6-pin adapter — 2 pieces
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Push-button (NO) — 1 piece
STC89C51RC, STC89C52RC, STC12C5A60S2
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USB to Serial/TTL adapter (e.g. CH340G, PL2303, etc.) — 1 piece
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Microcontroller — 1 piece
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Breadboard — 1 piece
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Jumper wires — ~10 pieces
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LEDs — 1 white
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1-10kΩ resistors — 1 pieces
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8-33MHz quartz crystal — 1 piece
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22pF capacitors — 2 pieces
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Push-button (NO) — 1 piece
Software
AT89S51, AT89S52
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Arduino IDE — 1.8.x or above should work
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avrdude— the Arduino IDE distribution contains a recent binary
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Important
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Upload the ArduinoISP sketch onto the Arduino board. |
STC89C51RC, STC89C52RC, STC12C5A60S2
Programming
Compile binary
mcu8051ide --no-bin --no-sim --assemble blink.asm
The output is blink.hex.
Downloading
AT89S51, AT89S52
avrdude -C %AVRDUDE_HOME%/etc/avrdude.conf -C +./etc/avrdude.conf -c avrisp -p AT89S51 -P COM7 -b 19200 -U flash:w:blink.hex:i
STC89C51RC, STC89C52RC, STC12C5A60S2
stcgal -p COM7 blink.hex // (1)
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Executing this displays Waiting for MCU, please cycle power. Simply disconnect then reconnect VCC.