Erik the EPSILON 5 is a handheld unit that has a serial port connection to be connected to a PC from the PC I download the hex code file using a software equinox2 to do this.

Then the unit is connected to the PCB the programmer only needs 5 volts and be connected to the PSEN, RESET, TXD and RXD pins of the uc it provides the conditions on RESET and PSEN to force the uc to go to the bootloader the problem is that I'm getting an error from the programmer when is connected to the uc so I think I'm missing something on the uc bootloader. programm?

My compiler has an option to load a software at the add: 00h for users aplication and at 0f3h for boot loader that is why I think I'm missing some codes at the bootloader.

The programmer has 3 leds power busy and error when I make it go into programming I get the busy led on but 20 seconds later I get an error.