Search found 18 matches

by Jami17
Mon Dec 30, 2019 2:19 pm
Forum: General Discussion
Topic: uart_set_line_inverse() mask parameter undefined
Replies: 2
Views: 682

uart_set_line_inverse() mask parameter undefined

I just downloaded the current IDF. Compiling my project now results in errors: uart_set_line_inverse(n, UART_INVERSE_TXD); UART_INVERSE_TXD is not defined anymore in the new IDF. The doucmentation is also unclear: Choose the wires that need to be inverted. Using the ORred mask of uart_signal_inv_t u...
by Jami17
Mon Nov 11, 2019 10:25 am
Forum: General Discussion
Topic: ESP32 still connects to repeater even when its signal is very weak
Replies: 1
Views: 389

ESP32 still connects to repeater even when its signal is very weak

My ESP32 module was connected to a WLAN-repeater (Fritz-Repeater). Now I moved it back near to the router (Fritzbox) but it still connects to the far away repeater, even that the router signal is much stronger. The result: slow & difficult traffic. Why doesn't ESP32 select the stronger signal? An An...
by Jami17
Thu Aug 08, 2019 6:07 pm
Forum: General Discussion
Topic: Can't get LAN8720 fully working
Replies: 14
Views: 6244

Re: Can't get LAN8720 fully working

I'm sorry I have to correct myself. Checking the schematics again I see that IO17 is used as clock output, so not IO0. I mixed it up with the ESP32-CAM that generates 20 MHz at IO0 and that is no problem even with the 30cm programming cable. I guess I had problems with IO0 and therefore used IO17, b...
by Jami17
Tue Jul 16, 2019 1:37 pm
Forum: General Discussion
Topic: connection to AP still exists, but no more IP traffic possible
Replies: 0
Views: 342

connection to AP still exists, but no more IP traffic possible

With ESP32-CAM working as STA I have observed several times, that it and the AP report that connection still exists (no SYSTEM_EVENT_STA_DISCONNECTED occured in ESP32-CAM), but no more IP messages can be exchanged. No ping / UDP / HTTP. The ESP32-CAM sits in the basement so signal strength is weak, ...
by Jami17
Tue Jul 16, 2019 1:10 pm
Forum: General Discussion
Topic: STA only connects after WPS execution
Replies: 0
Views: 331

STA only connects after WPS execution

I have several ESP32-CAM modules. One module doesn't connect to the AP when using correct credentials. Only after executing WPS it connects. That means I have to start WPS after each reset. The same firmware works well with other modules. The credentials are stored in the firmware, to be on the safe...
by Jami17
Wed Jun 26, 2019 10:31 pm
Forum: General Discussion
Topic: Can't get LAN8720 fully working
Replies: 14
Views: 6244

Re: Can't get LAN8720 fully working

GPIO0 works fine here as clock-out, even with a 30cm long programming cable that I initially feared would cause problems.
Have you an extra load connected to it that impairs the waveform?
by Jami17
Fri Jun 21, 2019 11:27 pm
Forum: General Discussion
Topic: Can't get LAN8720 fully working
Replies: 14
Views: 6244

Re: Can't get LAN8720 fully working

The problem I finally solved.
I used a second board and that worked fine. It seemed the first board had a LAN8720 solder problem, I could not find out in detail the reason, and gave up as it was a one time problem. So after all no s/w problem at all.
by Jami17
Mon May 13, 2019 9:13 pm
Forum: Report Bugs
Topic: uart_wait_tx_done() returns without waiting
Replies: 2
Views: 1286

Re: uart_wait_tx_done() returns without waiting

I suspected the same. However I don't like the suggested workaround, too complicated. It would be wise that uart_write_bytes() sets a flag that only gets cleared when the data is moved to the ringbuffer. So wait_tx_done() waits also while that flag is set. For now the delayUs() works fine for me.
by Jami17
Sat May 11, 2019 9:02 pm
Forum: ESP32 IDF
Topic: calloc fails even when free heap is large enough
Replies: 2
Views: 967

Re: calloc fails even when free heap is large enough

That did it !
Thank you very much.

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