Objective Development Forums

I use an indicator flag, which will be set if adc is ready but value can not be written to the buffer. (Not because of buffer overflow, but because of pending USB interrupts). And yes, you will definitly loose samples - even with maximum prescaler. Best regards And for example. If i have 100ksps sa...

and other question. if i use circular buffer to store adc samples. would i lose some samples while transfering for example buffer of 254B to PC

This project should become an example on and for tinyUSBboard (" http://matrixstorm.com/avr/tinyusbboard/ "). Because this board provides 16 MHz the "oscilloscope" samples in "running mode" with maximum rate (100ksps?) and 8bit resolution. ADC is implemented as interru...

One more question. You say that you are working on osciloscope project. What is the max frequency of measured signal which you can show correct graphically?

and how about this topic

viewtopic.php?f=8&t=3059


where people states that they got 24kB/s


and is avr309 better than v-usb

No, I do not think so. Most of the advantages of V-USB is cheaper and (since RS232 dies as a default interface on common computers) better supported (thanks to USB) of interconnection with computers. Since V-USB just supports low-speed USB (1.1 Mbps) and since it is very CPU-intensive on the micro ...

is transfering some data from microcontroler to computer using v-usb faster than rs232 at maximum baudrate