Re: [avr-chat] how to connect USBasp to attiny2313

[YuGiOhJCJ Mailing-List]

In fact, I found.
The missing information are into an Atmel Application Note [1].
So I must link like this:
USBasp -> attiny2313
---
MOSI (1) -> PB5 (17)
VTG (2) -> VCC (20)
NC (3) -> not used
GND (4) -> GND (10)
RST (5) -> PA2 (1)
GND (6) -> GND (10)
SCK (7) -> PB7 (19)
GND (8) -> GND (10)
MISO (9) -> PB6 (18)
GND (10) -> GND (10)
---

But if I try to use avrdude, I got this:
$ avrdude -p t2313 -c usbasp -U flash:w:main.hex
avrdude: warning: cannot set sck period. please check for usbasp firmware 
update.
avrdude: error: programm enable: target doesn't answer. 1 
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.


avrdude done.  Thank you.

Do you see the problem ?

[1] http://www.atmel.com/Images/doc2521.pdf

On Fri, 2 Aug 2013 07:22:08 +0200
YuGiOhJCJ Mailing-List <address@hidden> wrote:

> Hello,
> 
> I have just bought a USBasp programmer [1] to program an ATMEL attiny2313 
> micro-controller [2].
> I would like to use avrdude to program my micro-controller.
> 
> On [1] I can see the schematic of USBasp whereas in [2] I can see the 
> schematic of attiny2313.
> But it is not enough because I can't guess how to link the 10 pins of USBasp 
> with the 20 pins of attiny2313.
> I can see the VCC and the GND in each of them, so I can imagine that I must 
> link like this:
> 
> USBasp -> attiny2313
> ---
> VCC (2) -> VCC (20)
> GND (10) -> GND (10)
> ---
> 
> But I am not sure.
> How to know what to do with the 8 other pins of USBasp ?
> 
> Thank you.
> Best regards.
> 
> [1] http://www.fischl.de/usbasp/
> [2] http://www.atmel.com/Images/doc2543S.pdf
> 
> _______________________________________________
> AVR-chat mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/avr-chat