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Serial ADC---Interface with AT90USB1287 in USART SPI mode
Thanks David, I will try this...and let you know.
Wednesday, 6 November 2013 - 10:45
SPI clock always running...how to do that?
Hey...everyone I need some help again, regarding USART in SPI mode, I am interfacing different serial ADC. http://www.mouser.com/ds/2/256/M... It requires 24 continuous clock...
Tuesday, 5 November 2013 - 06:36
AT90USBKEY2 External ADC reference voltage
ya, correct.
Tuesday, 5 November 2013 - 04:36
AT90USBKEY2 External ADC reference voltage
theusch wrote:Quote: My datasheet shows Quote: Table 31-5. ADC characteristics ... VREF Reference Voltage Single Ended Conversion 2.0V-AVCC ... which totally explains your...
Friday, 1 November 2013 - 06:23
AT90USBKEY2 External ADC reference voltage
Initially, I used 3.3V and 5V from At90usbkey to generate 1.023V using resistor pot. I found it not working, the ADC value always shows 3FF with that(even connected to ground),...
Thursday, 31 October 2013 - 13:16
AT90USBKEY2 External ADC reference voltage
I have done without success, and I think at90usb1287 has 2.56V internal reference voltage. Can anyone tell me if I want to connect external 1.023V for reference, what I should...
Thursday, 31 October 2013 - 07:54
pulse counter using usb1287
Exactly, I was googling for the same...thanks a lot theusch.. :P
Friday, 23 August 2013 - 05:37
pulse counter using usb1287
You are right, I was looking for controllers with my existing compiler support. Those are not supported :(
Thursday, 22 August 2013 - 12:53
pulse counter using usb1287
No one from AVR!!!!!!!!
Thursday, 22 August 2013 - 11:50
pulse counter using usb1287
Kartman wrote: The 30ns pulse can be stretched easily, to say, 200ns but if the pulses come too quickly, you will lose count of some. Thats what reflect by Pulse pair resolution...
Thursday, 22 August 2013 - 09:56
pulse counter using usb1287
Thanks Kartman, I doubted that but want to confirm that so incase I am not missing trick unknown to me. The pulse pair resolution is the minimum time before a second pulse will be...
Thursday, 22 August 2013 - 08:40
SPI clock always running...how to do that?
Who-me wrote: Looking at Figure 13, and their code, it looks like you can connect ADC-CONV to SPI Data OUT, and simply send data with a leading HI, other 7 bits low, then send 00...
Thursday, 4 July 2013 - 08:02

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