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Versaloon is an open source, USB connected project, that centers around an STM32 processor and provides a standard JTAG pinout. Above you see the Nano version which has a 10-pin JTAG connector, but there is also a 20-pin option on the Handy model. Great, another JTAG programmer. Well this can do a bit more than that. With a bit of help from the software it has been turned into a programmer for ten … [Read more...]
In the last installment of our tutorial series we built a simple circuit on a breadboard and programmed an ATmega168 to make it run. That proves that you know how to follow directions, but the eureka moments of doing everything yourself are on the way. This time around you will get down and dirty with the datasheet, learning where each line of the sample code came from, and give your recently … [Read more...]
You may be able to write the most eloquent code in the history of embedded systems but without a way to run it on the hardware it will be worthless. In this installment of the tutorial series we will: Look at some of the available AVR programmer options Place the microcontroller on a breadboard and connect it to a power supply and a programmer. Use programming software to send some example … [Read more...]
[Alexsoulis] needed to burn the Arduino bootloader to a slew of ATmega328 chips. Instead of sitting there and plugged the chips into a programmer one at a time, he build a robotic microcontroller programmer. It starts with the DIP package microcontrollers in a tube, with a servo motor to dispense them one-by-one. An arm swings over and picks up the chip with a fish pump powered vacuum tweezers … [Read more...]
This morning Texas Instruments unveiled Launchpad, a development platform for their low-cost MSP430 line of microcontrollers. We've seen these chips before, most notably in the ez430 Chronos sports watch. We see this as a bid for the hobby market currently enjoyed by Arduino, PIC, AVR, and others. TI's biggest selling point is price, but we're going to wait to share that with you. Join us after … [Read more...]
Did you order that 4-port USB hub because it was almost free but now it's just sitting in your junk box? Why not turn it into an In System Programmer for AVR chips? [Paul] came up with HUB ISP as an answer to the chicken-or-egg problem we've seen with other diy programmers. It uses the data wires from four different USB cables to program AVR chips, enlisting the help of a 74HC00 NAND gate along … [Read more...]
We love our AVR Dragon programmer but it can be nice to have a cheap and simple in system programmer on hand too. The USBasp is one such programmer that uses and ATmega8 as its only IC. It requires just a handful of components and can be purchased as a kit, or etched and assembled at home. If you source your own parts the chip does need to be programmed which makes for a chicken-or-egg scenario. … [Read more...]
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