Search found 31 matches

by ThomasB
Fri Nov 03, 2017 11:02 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

Correct. There is some acknowledgement/error check story going on in the ACK slot of the frame. You should get CAN error IRQs if there is no recipent. Haven't tested it.
by ThomasB
Fri Jul 21, 2017 10:33 am
Forum: Report Bugs
Topic: Win 10 make error liblto_plugin-0.dll
Replies: 2
Views: 1230

Win 10 make error liblto_plugin-0.dll

Hi, I tried to install the toolchain and IDF on a Win10 machine. esp32_win32_msys2_environment_and_toolchain-20170330 ESP-IDF fresh download (21.07.2017) set ESP-IDF path in msys (Works fine on my Win 7 machine) downloaded the hello world example changed serial port in menuconfig make from msys AR l...
by ThomasB
Thu Jun 15, 2017 9:10 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

cool 8-)
by ThomasB
Sun May 21, 2017 4:07 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

Merged
by ThomasB
Wed May 17, 2017 1:36 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

added RTR support: https://github.com/ThomasBarth/ESP32-CAN-Driver The interface changed a little, the Frame Information record is now copied into the frame type. This has the advantage that all the information like DLC or RTR can be copied in a single access, which boosts performance. Also this hel...
by ThomasB
Wed May 17, 2017 12:16 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

added extended frame format, check https://github.com/ThomasBarth/ESP32-CAN-Driver
by ThomasB
Mon May 15, 2017 10:53 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

Hi guys...

Sorry for the late reply but im drowning in work.
Ill try my best to implement the change requests in the next 2 weeks.

Regards
Thomas
by ThomasB
Wed Apr 05, 2017 4:41 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

While the rx frame is handled in an ISR, the tx frame is send in a task context. As we have plenty of tasks for wifi etc. you can not know if there are currently higher priority tasks pending and as the tx task has no synchronisation point, the delay jitters. You can place the tx directly in the rx ...
by ThomasB
Sun Mar 26, 2017 2:21 am
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

Howdy.

Wow, a lot of conversation going on here.
I just merged your PR rudi.
Yeah... RTR is still a thing and some guys asking for extended format frames. Shouldn't be a big deal to integrate this.

Anyhow... I am still in Asia and only can occasionally check the forum.

Regards
Thomas
by ThomasB
Mon Mar 06, 2017 10:34 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 103
Views: 25578

Re: About the CAN controller.

Those transceivers work all the same way, by translating the bus level to logical level. Basically you only need to check if the transceiver supports your baud-rate. (of course there are other parameters of the chip [like the package to pick something obvious] but that is nothing you have to deal wi...