By zhalim
#6631
Hi,
How to check which version (1.0 or 1.1) my usbtiny isp programmer is? I've read the product description somewhere saying :-

[quote]Product Update Log

2011/08/23 : The Version 1 has identified that 10 PIN IDC has incorrect MISO and MOSI Pin out. It will be fixed in version V1.1
[/quote]

There is no marking showing which version. If mine is v1.0 how do i fix it?

By zhalim
#6633
I bought mine recently from a local seller. I don't know if it is a new stock or old. The 6 pin idc should be correct right?
By Hector
#6634
Yes, the 6pin is correct.


The way I can think of testing if you got an old one is to do a continuity test on the pins. So trace the pins from the chip to the 10pin header. and test them with a multimeter's continuity function.
By zhalim
#6635
I did the continuity testing (using the corrected v.1.1 schematic) from the chip (attiny 2313 pin 17 mosi) to the pin 1 mosi (10pin) but no beep. Tested also for miso. Then repeat the test using v1.0 schematic also no beep. I think the buffer chip is in the way. Then i tested the 6pin against 10pin and i get the beep. If 6pin is correct and the 10pin must also be correct right?
By zhalim
#6636
UPDATE: I made a mistake during the 6pin vs 10pin test. I should've use the v1.0 schematic. Pin 1 6pin miso beeped when connected to pin 1 10pin miso which is wrong and should be mosi. Then my board is v1.0. Well luckily i rarely use 10pin. If i need to maybe i can use jumpers or crimp a corrected cable instead.