Yes, the problem still is there, at least in the version dl'ed in March, not sure what version-no.
I recently varied the delay value
delayUs(150);
It worked down to 40us when the same core is used.
I have not tried to go lower to find out the limits.
It would be great so see this finally fixed.
Search found 20 matches
- Wed Jun 16, 2021 8:44 pm
- Forum: Report Bugs
- Topic: uart_wait_tx_done() returns without waiting
- Replies: 5
- Views: 15045
- Tue Nov 03, 2020 6:29 pm
- Forum: ESP-IDF
- Topic: Non-blocking sockets, select() and transmit buffer size
- Replies: 3
- Views: 8887
Re: Non-blocking sockets, select() and transmit buffer size
For TCP, there is a non-standard IDF extension which allows you to call call setsockopt(TCP_SNDBUF) with an int-sized parameter which is the send buffer size as a multiple of the TCP_MSS value (rather than in bytes.) ie the send buffer size in bytes is the parameter value multiplied by TCP_MSS. Thi...
- Mon Jan 13, 2020 2:04 pm
- Forum: General Discussion
- Topic: uart_set_line_inverse() mask parameter undefined
- Replies: 2
- Views: 4968
Re: uart_set_line_inverse() mask parameter undefined
Yes, I had also asked here and got a reply
https://github.com/espressif/esp-idf/issues/4581
https://github.com/espressif/esp-idf/issues/4581
- Mon Dec 30, 2019 2:19 pm
- Forum: General Discussion
- Topic: uart_set_line_inverse() mask parameter undefined
- Replies: 2
- Views: 4968
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...
- 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: 3120
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...
- Thu Aug 08, 2019 6:07 pm
- Forum: General Discussion
- Topic: Can't get LAN8720 fully working
- Replies: 14
- Views: 23009
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...
- 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: 2135
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, ...
- Tue Jul 16, 2019 1:10 pm
- Forum: General Discussion
- Topic: STA only connects after WPS execution
- Replies: 0
- Views: 2213
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...
- Wed Jun 26, 2019 10:31 pm
- Forum: General Discussion
- Topic: Can't get LAN8720 fully working
- Replies: 14
- Views: 23009
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?
Have you an extra load connected to it that impairs the waveform?
- Fri Jun 21, 2019 11:27 pm
- Forum: General Discussion
- Topic: Can't get LAN8720 fully working
- Replies: 14
- Views: 23009
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.
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.