Search found 89 matches

by gunar.kroeger
Fri Nov 08, 2019 8:10 pm
Forum: ESP32 IDF
Topic: PPP does not detect modem disconnection
Replies: 1
Views: 75

Re: PPP does not detect modem disconnection

We see this issue on esp-idf-v3.3 aswell.
there are a few issues opened on github regarding pppos disconnection and reconnection problems but no official answer yet /:

https://github.com/espressif/esp-idf/is ... 3Aopen+ppp
by gunar.kroeger
Thu Nov 07, 2019 5:39 pm
Forum: General Discussion
Topic: How can I open the same file twice? not the same behaviour as on windows..
Replies: 0
Views: 53

How can I open the same file twice? not the same behaviour as on windows..

How can I open the same file once to write a log continuously, and second to read it and upload it through wifi. I wish to have 2 cursors moving on the file, and not have to fseek back and forth to impelement this feature. I tested this code with esp-idf-v3.3 and on windows with CodeBlocks int main(...
by gunar.kroeger
Tue Nov 05, 2019 8:19 pm
Forum: General Discussion
Topic: crash on uart_read_bytes after some time
Replies: 0
Views: 90

crash on uart_read_bytes after some time

I have seen this crash a few times on esp_idf_v3.3 what could cause the crash when calling the uart_read_bytes function?? We only read one byte at a time to get NMEA messages // Read data from the UART int len = uart_read_bytes(gps_uart_port, (uint8_t*) data, 1, pdMS_TO_TICKS(2000)); Guru Meditation...
by gunar.kroeger
Tue Nov 05, 2019 5:49 pm
Forum: ESP32 IDF
Topic: Error on secondary bluetooth connection
Replies: 3
Views: 913

Re: Error on secondary bluetooth connection

Anyone?
by gunar.kroeger
Thu Oct 31, 2019 4:18 pm
Forum: General Discussion
Topic: Maximum number of open files
Replies: 3
Views: 193

Re: Maximum number of open files

FATFS on sdcard through spi
by gunar.kroeger
Thu Oct 31, 2019 2:03 pm
Forum: General Discussion
Topic: Maximum number of open files
Replies: 3
Views: 193

Maximum number of open files

What is the maximum number of open files that we can have at the same time with esp-idf, and what are the configurations to get to this value?

currently we can't open more than 5. Is there a way to increase this number?
by gunar.kroeger
Mon Oct 28, 2019 4:19 pm
Forum: ESP32 IDF
Topic: CoAP server uri scheme error dtls= 0 tls = 0 scheme = 1
Replies: 0
Views: 45

CoAP server uri scheme error dtls= 0 tls = 0 scheme = 1

How can I run the coap_client_example with coaps://californium.eclipse.org:5684? It works fine using coap, but coaps returns E (6097) CoAP_client: CoAP server uri scheme error dtls= 0 tls = 0 scheme = 1 (I edited just this log line to ESP_LOGE(TAG, "CoAP server uri scheme error dtls= %d tls = %d sch...
by gunar.kroeger
Thu Oct 24, 2019 8:38 pm
Forum: General Discussion
Topic: CoAP between two ESP 32
Replies: 8
Views: 4112

Re: CoAP between two ESP 32

Got it to work with 2 esp32. But not with coap://californium.eclipse.org
The message handler is called, but COAP_RESPONSE_CLASS(received->hdr->code) returns 4 instead of 2.

Does someone know what coap response class means and if that's what I should be getting from this URI?
by gunar.kroeger
Thu Oct 24, 2019 7:19 pm
Forum: General Discussion
Topic: CoAP between two ESP 32
Replies: 8
Views: 4112

Re: CoAP between two ESP 32

I tested the CoAP server example and it worked fine using a java program to send the GET commands. Next thing I did was trying to get an esp32 with the client example to connect to the esp32 with the server example. The server shows that a GET command was indeed received, but either the response mes...
by gunar.kroeger
Thu Oct 24, 2019 5:36 pm
Forum: General Discussion
Topic: CoAP between two ESP 32
Replies: 8
Views: 4112

Re: CoAP between two ESP 32

soo... what is the coap-client example supposed to do? I ran the example from esp-idf-v3.3 using the coap://californium.eclipse.org url, but I get no response from the server. I (1583) wifi: pm start, type: 1 I (2693) event: sta ip: 192.168.0.117, mask: 255.255.255.0, gw: 192.168.0.254 I (2693) CoAP...

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