Serial atmel programer

Any solution? Im using serial to usb adapter. Thanks :. Amazing Job!!! THX :D. Post a Comment. This is a very simple and easy to build programmer for Atmel microcontrollers from AVR family. The microcontrollers must support serial programming. This programmer is connected to a PC through the RS serial interface and can be used with the PonyProg or Avrdude software programmer.

Description of the serial programmer: The programmer is quite simple and it is based on the SI-Prog from the author of PonyProg software. The AVR microcontrollers are in reset when the signal has low level. The resistor R5 works as a pull-up for reset signal. The resistor R4 helps to close the transistor T1. The programmer has standard 10 pins header. Schematic of the serial programmer Assembly diagram.

PCB top side. PCB bottom side Panelization When you need more pieces. Assembled PCB top side. Attention: The transistor T1 should be in opposite position then is depicted in the assembly diagram. I also use the programmer with desktop computer, laptop, with and wihout USB-to-RS adapter and it works in all cases.

When you want to program your microcontroller with the PonnyProg you have to setup the program as you can see on the following picture.

You have to select chosen COM port, where is connected your programmer. Using Avrdude: When you want to program your microcontroller with Avrdude you have to select the keyword "ponyser" as a programmer type and appropriate COM port. I'm using this method to program my microcontroller directly from the Atmel AVRstudio when I'm debuging my application. I create a batch file with the command for the avrdude and I call the batch file directly from the tool bar.

It is very fast and easy. Avrdude is also part of the WinAVR package. Programming header reduction: Sometimes you have to program microcontroller in a aplication where is only 6 pins header instead of 10 pins. I created small adapter for this purpose. For your information this process shouldn't really take more than 10 to 30 seconds. This depends on the size of the program that you're trying to flash. After programming is completed "Write successful" window will be shown letting you know that AVR microcontroller has been programmed, and is now ready to be used.

First click on the sercurity and configration button in the tool bar, a dilog box will apper as shown in the image blow. If somebody need more help then please make a comment. Rishiraj May 11, at AM.

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Of course, the current is very low, but we only need a handful of milliamps for a brief duration to reset the fuses. A multi-stage Dickson charge pump with just diodes and capacitors needs two clock signals degrees out of phase to make the charge cascade propagate. An alternative is to use one clock source with some NOT logic to invert the original signal into two signals.

The design below is a 4x voltage multiplier. Here is the schematic:. It should be fairly easy to incorporate the MAXA, a couple of 0. More on that later. Using this simple trick, and by keeping the power on continuously, I can flash many ATtiny85 chips just by attaching and removing a SOIC8 test clip.

No need to toggle power. This is the advantage of this design over others. Also, I use colored LEDs for some flare. Drawing inspiration from this article , we can learn a lot about the protocol. See below. One exciting discovery from this blog is that in addition to resetting the fuses, a chip may need to be erased if it is super bricked with the Lock Bit Protection on.

Not much is needed to make an HV serial programmer: just a few capacitors, a neat charge-pump IC, a run-of-the-mill transistor, a resistor, a Digistump, and the SOIC8 connector. But, what kind of capacitors should be used? I use ceramic J 0. Here is a quick reference 3 of the types of capacitors:.