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tc1-u4

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Alternative FW for U4 (STC15 8051 uC) on TransistorTester TC1

// repository documentation

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# TC1 U4
Alternative firmware for U4 (STC15 8051 uC) on TransistorTester derivate TC1.
Use in Combination with https://github.com/svn2github/transistortester

## Compilation

This project is for Keil µVision IDE, which can be found here: http://www.keil.com/
You can either compile the fw yourself, use the latest precompiled fw in /Objects or download one of the released fw files.

## Connection

Just grab any kind of USB-to-UART(3V3) Adapter and hook up...
* TXD (Stick) to P1,
* RXD to P2 and
* GND to GND

Alternatively you can either desolder it and use some SOP8 ↔ DIP8 socket converter
or a SOIC (SOP8) test clip.

## Upload / Flashing

Download the STC-ISP Software here: http://www.stcmicro.com/rar/stc-isp6.86.rar  
Open it but leave everything as it is, except:
* Input IRC frequency
which is set to 12.000 MHz.

Press "Open Code File" and select the firmware (u4.hex).
Press "Download/Program" and hook up 3.3V from the programmer to the chips VCC (power the IC).

Wait for the firmware being uploaded.

tc1-u4

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