On a whim ( following recommendations found here), I connected up a 16Mhz crystal and a pair of 22pF capacitors to the crystal pins on my uC. I thought that I’d set everything correctly, but apparently I did not. All I got from the programmer was target doesn't answer. One time, I was messing around with fuses. A reminder also that unlike connecting an SPI device where MOSI goes to MISO, when you’re connecting a programmer, you connect MOSI to MOSI, and MISO to MISO Note that the notch is on the right-hand side. More than once, I swapped the pins horizontally. The problem with most of these is that they are describing the male connector. If you do a search for 10-pin ISP pinout you’ll get a lot of images and posts about how to wire your 10 pin connector. This means that you either don’t have it wired up right or that your chip is talking too fast. I managed to run into both.įirst, I had things wired up wrong. 1ĪVRdude isn’t getting a response from the chip. The problem therefore, is likely your chip.Įrror: programm enable: target doesn't answer. If you can find usbasp, your computer can see your programmer. Open the System Information application (Either in /Applications/Utilities or from the About this Mac menu item in the Apple Menu) and click on the USB selection under hardware. You can do a quick check to see if your Mac can see your USBasp. If you’re on a Mac, You don’t need a driver. I’ve heard the recommendation to upgrade drivers. You probably don’t need to upgrade your firmware. If you do want to upgrade your firmware, you will need another programmer to do so. When it can’t, it’ll complain that it’s not working, and you should upgrade your firmware. When avrdude tries to program a controller, it will try to match up clock speeds to make everything easier. I ran into an number of problems getting it to work because there is so much variation online (spread over many years). So I bought a USBasp – another type of open source programmer for AVRs. I loaned out my trusty USBTinyISP to a friend a while back and it was easier to go find an alternative than to coordinate schedules.
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