XPLAINED USB CDC DRIVER

It is used like this for a bit and then programmed back to the first program with just one usb interface. Copy 0x bytes from 0x to 0x –NAND: Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Sign up using Email and Password. Stack Overflow works best with JavaScript enabled. Enter power down mode –PHY: Once it is reprogrammed the sam4s has 2 usb interfaces with the pi:

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Sam4s xplained pro dual usb problems. Can you help me with this why its happening and a solution for this issue. All configurations are happening but the USB is not getting connected.

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The issue is in the enumeration of the usb interfaces after reprogramming to the program where both are used. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I have a sam4s microcontroller that operates in a remote area.

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Sign up or log in Sign up using Google. I’d love any input on possible explanations or solutions and I am happy to provide any other information that would be useful.

Sam4s xplained pro dual usb problems – Raspberry Pi Forums

HyperTerminal on Microsoft Windows with these settings: Stack Overflow works best with JavaScript enabled. Copy 0x bytes from 0x to 0x –NAND: Feb 28 The edbg chip is usually hosted as ttyACM0, when the device is reprogrammed, sometimes the cdc interface comes up as ttyACM1 as expected.

Sign up using Facebook. Enter power down mode –PHY: I think its because of the Vbus pin is not getting high and the device is getting disconnected. It is usually running one program where it uses its edbg chip to interact with the pi over usb as a serial terminal that I can then view over ssh.

However, sometimes the cdc interface comes up as ttyACM0 instead, kicking off the edbg interface. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and dplained policyand that your continued use of the website is subject to these policies.

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Occasionally I use openocd on the pi to fdc the sam4s using the edbg as a cmsis-dap device. Use sysfs to identify which function is being assigned to each endpoint. Wed Sep 27, 9: Enter power down mode –NAND: This would be okay, but inconvenient. Host serial program not ready!

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Post as a guest Name. Once it is reprogrammed the sam4s has 2 usb interfaces with the pi: Sam4s xplained pro dual usb problems Quote Fri Sep 29, 4: Sam4s xplained pro dual usb problems Quote Wed Sep 27, 9: The real problem is that sometimes a reboot doesn’t bring the edbg back and I’m left with just the cdc interface and can’t reprogram the sam4s anymore.

Join Stack Overflow to learn, share knowledge, and build your career. Fri Sep 29, 4: It is used like this for a bit and then programmed back to the first program with just one usb interface.