Search found 1384 matches

by Pito
Sat Aug 19, 2017 6:32 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

TX: What if the Serial.write (and friends) will check whether the Host is NAKing, and it timeouts while returning 0 ??
by Pito
Sat Aug 19, 2017 12:38 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

FYI: Upload via DFU (maple_loader v0.1, host, from Sloeber) into MapleMini (dev 2.39.0) - the payload packets (1052bytes) with some handshaking (only a small chunk of data shown, no anomalies there till the end, all clean, only 2 Malformed packets out of about ~60 during enum/init phase): MapleMini ...
by Pito
Sat Aug 19, 2017 10:15 am
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

Libmaple F1 against HyperTerminal (227kB/s) Libmaple F1 against HyperTerminal.JPG . What are the two sources/destinations 2.10.0 and 2.10.1 ?? It could be all that Ethernet errors are USB Packet capture limitations/features/bugs?? http://desowin.org/usbpcap/capture_limitations.html Btw HyperTerminal...
by Pito
Sat Aug 19, 2017 8:05 am
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

Libmaple F1 - similar to 32Generic but much more UUs inside a packet: Libmaple F1 capture.JPG Sometimes a malformed packet: Libmaple F1 capture 2.JPG The list of Malformed in the upload: Libmaple F1 malformed.JPG . Interestingly the last packet (N. 3673) is not malformed :) My current understanding ...
by Pito
Sat Aug 19, 2017 7:12 am
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

Hmm, what I've done this morning - installed Wireshark - free open network analyzer, which includes "USB Packet capture" analyzer. https://www.wireshark.org/ Testing via the loop sending "U" (0x55) to TeraTerm (Win7_64b), from Black F407: Libmaple F4 - the data packets identified as "5555" and Ether...
by Pito
Fri Aug 18, 2017 11:18 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

My naive "user" observation (based on the above results with libmaple F1 and F4) is following: The libmaple's USB TX "understood the TeraTerm's (the Host) handshaking commands", as it had transferred 1mil chars ok with 102kB/s for both F1 and F4 while TT had logged the data into a file. It is obviou...
by Pito
Fri Aug 18, 2017 10:01 pm
Forum: STM32generic
Topic: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem
Replies: 56
Views: 929

Re: [STM32GENERIC/HAL] SerialUSB TX/RX speed problem

http://www.beyondlogic.org/usbnutshell/usb1.shtml
The host is responsible for managing the bandwidth of the bus. This is done at enumeration when configuring Isochronous and Interrupt Endpoints and throughout the operation of the bus.
by Pito
Fri Aug 18, 2017 9:48 pm
Forum: Libraries & Hardware
Topic: SD / Memory bottleneck, any ideas?
Replies: 13
Views: 195

Re: SD / Memory bottleneck, any ideas?

Sorry if i haven't said it earlier, i didn't know it was necessary to clarify this to be able to ask for ideas / tips on this matter on the forum if my objective was to do a commercial product.
Nobody here has to ask you to clarify that..
by Pito
Fri Aug 18, 2017 9:36 pm
Forum: IDE's
Topic: [SOLVED] How to use libraries (EEPROM.h) with Sloeber
Replies: 8
Views: 109

Re: How to use libraries (EEPROM.h) with Sloeber

That is done by Sloeber automatically.
by Pito
Fri Aug 18, 2017 9:12 pm
Forum: IDE's
Topic: [SOLVED] How to use libraries (EEPROM.h) with Sloeber
Replies: 8
Views: 109

Re: How to use libraries (EEPROM.h) with Sloeber

I do place all my libraries used into that folder above (marked red).. I have got several versions of all existing cores in my Sloeber, each core version has its own /libraries/ folder (marked red above) with my libraries which work fine with that particular core version :) Cores used in Sloeber.JPG...