AVR Serial Download Cable
Many friends have encountered when the parallel port is damaged. At this time, the parallel port download cable is useless. In fact, for desktop computers, most of them are caused by the leakage of the small capacitor from the parallel port socket pin to the ground. Just remove it directly. Of course, the serial-parallel chip on the motherboard is also damaged.
The USB interface download cable is very troublesome to make. Here is a serial AVR download cable, which is also very easy to use and has a faster speed. The source code is tested correctly.
AVR STUDIO for software
Fuse bit setting FUSE: L=BF, H=C9
The BOD is turned on and set to 2.7V to prevent EEPROM damage. It is set to 2.7V to adapt to 3.3V or 5V power supply. Use MAX3232 for 3.3V power supply.
Firmware: ourdev_432579.rar
Instructions:
After all components are installed, turn the setting switch to the "self-programming" position, connect it with the parallel port programmer, and then turn the setting switch to the "working" position after programming.
Connect the serial port cable, open the AVR STUDIO software, click the connection programmer and select "STK500 OR AVRISP" to connect.
Remark:
Using MAX3232 and MEGA16L-8, the power supply can be 3.3V-5V;
With the MAX232A and MEGA16L-8, the power supply can only use 5V.
The peripheral capacitor of MAX3232 and MAX232A can use 104, and the peripheral capacitor of MAX232 can use 105 (1UF).
Welcome to contact us for more FTDI USB Serial Cables.
Following is the link to lead you to our FTDI cables: https://www.pcm-cable.com/ftdi-cables/
