SOLUTION: Macs with USB 3 and USBtinyISP

USB AVR Programmer and SPI interface. Adafruit's USBtinyISP.

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enhering
 
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Joined: Tue Jun 05, 2012 5:03 pm

Re: SOLUTION: Macs with USB 3 and USBtinyISP

Post by enhering »

My MacBook USB is 2.0. I also have tried through a 2.0 HUB. Same problem.

If I send the device to you, can you identify the problem?

I'm planning on buying another one too.

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adafruit_support_rick
 
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Re: SOLUTION: Macs with USB 3 and USBtinyISP

Post by adafruit_support_rick »

If the target is not connected, do you still have problems with the computer not recognizing the USBtiny?

What about the monitor? Do you still have monitor problems when the target is not connected to the USBtiny?

I will say that some of your joints like like they could use more solder. The solder should flow completely over the pad.

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enhering
 
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Re: SOLUTION: Macs with USB 3 and USBtinyISP

Post by enhering »

adafruit_support_rick wrote:If the target is not connected, do you still have problems with the computer not recognizing the USBtiny?
The USBtiny is recognized. It is not detecting the AVR anymore. As if the AVR was not powered up. But the ATMEL ICE programmer can program the same IC in the same conditions.
adafruit_support_rick wrote:What about the monitor? Do you still have monitor problems when the target is not connected to the USBtiny?
The MBP external monitor goes black sometimes when external ground (from power supply) is connected to AVR ground. AVR is powered externally, as I'm using 3.3V.
adafruit_support_rick wrote:I will say that some of your joints like like they could use more solder. The solder should flow completely over the pad.
I have reflowed all the USBtiny solder pads and still get the same result. I have also tested the 6 wire flat cable. I just can't find what is the problem. Sorry for bothering. I'll consider this programmer dead and buy another.

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adafruit_support_rick
 
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Re: SOLUTION: Macs with USB 3 and USBtinyISP

Post by adafruit_support_rick »

keep me posted.

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enhering
 
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Re: SOLUTION: Macs with USB 3 and USBtinyISP

Post by enhering »

I can send it to you, if you believe it may be useful.

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adafruit_support_rick
 
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Re: SOLUTION: Macs with USB 3 and USBtinyISP

Post by adafruit_support_rick »

We don't need it back. Thanks anyway.

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