Search found 613 matches

by ESP_igrr
Wed Jun 28, 2017 5:45 am
Forum: General Discussion
Topic: Which ESP32 module would you recommend for power measurement?
Replies: 2
Views: 59

Re: Which ESP32 module would you recommend for power measurement?

The best ones for power measurements are probably http://esp32.net/images/Espressif/ESP-Test-Board/Espressif_ESP-Test-Board_V3.jpg , but i don't think they are available for sale anywhere. WROVER-KIT v3 (identified by black solder mask and female camera header) has a 0 Ohm resistor between WROVER/WR...
by ESP_igrr
Wed Jun 28, 2017 4:02 am
Forum: General Discussion
Topic: Non-deterministic behaviour while acquiring data (Interrupts supposedly disabled))
Replies: 5
Views: 55

Re: Non-deterministic behaviour while acquiring data (Interrupts supposedly disabled))

Interrupt watchdog detects if interrupts are disabled for too long. 300ms is the default timeout. In Arduino IDE it isn't possible to configure this timeout, but if you compile Arduino code within ESP-IDF, then you should be able to configure this parameter using 'make menuconfig'. See "using a...
by ESP_igrr
Tue Jun 27, 2017 3:47 pm
Forum: General Discussion
Topic: Non-deterministic behaviour while acquiring data (Interrupts supposedly disabled))
Replies: 5
Views: 55

Re: Non-deterministic behaviour while acquiring data (Interrupts supposedly disabled))

Should I move to other development environment if I wish to use such functions?. You may use 'portENTER_CRITICAL' / 'portEXIT_CRITICAL' macros to disable interrupts on the current CPU. static portMUX_TYPE spinlock = portMUX_INITIALIZER_UNLOCKED; portENTER_CRITICAL(&spinlock); // this code runs ...
by ESP_igrr
Tue Jun 27, 2017 2:34 pm
Forum: ESP32 SDK
Topic: Virtual File System and "directory listing"
Replies: 10
Views: 939

Re: Virtual File System and "directory listing"

If I have a use case for only one file system and want to mount it at "/" then it would then seem to be desirable to be able to perform a directory listing at "/". That should work currently, because this falls into the "listing for paths which match one of the registered f...
by ESP_igrr
Tue Jun 27, 2017 1:53 pm
Forum: General Discussion
Topic: Non-deterministic behaviour while acquiring data (Interrupts supposedly disabled))
Replies: 5
Views: 55

Re: Non-deterministic behaviour while acquiring data (Interrupts supposedly disabled))

Looking at Arduino.h, `noInterrupts` and `interrupts` are not implemented: https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/Arduino.h#L82-L85 This probably explains the issue you are seeing. What kind of samples are you trying to collect though? ESP32 has RMT and I2S peripherals. R...
by ESP_igrr
Tue Jun 27, 2017 1:48 pm
Forum: ESP32 SDK
Topic: Virtual File System and "directory listing"
Replies: 10
Views: 939

Re: Virtual File System and "directory listing"

These functions are now exposed in VFS interface, and FATFS driver implements them. However these functions don't do anything useful for "/", they only provide listing for paths which match one of the registered filesystems. If you have a use case for listing root directories, please open ...
by ESP_igrr
Tue Jun 27, 2017 11:03 am
Forum: ESP32 SDK
Topic: [Solved] StoreProhibited sha engine?
Replies: 2
Views: 28

Re: StoreProhibited sha engine?

What is the stack size of this ping task?
by ESP_igrr
Tue Jun 27, 2017 10:48 am
Forum: ESP32 SDK
Topic: TCP not working, but UDP does work
Replies: 2
Views: 43

Re: TCP not working, but UDP does work

Thanks for the report. Can you use wireshark to capture traffic between the ESP32 and this special router?
by ESP_igrr
Tue Jun 27, 2017 10:47 am
Forum: ESP32 SDK
Topic: Correct circuit for sd card
Replies: 5
Views: 61

Re: Correct circuit for sd card

send_op_cond is the first command sent to the card. If it returns ESP_ERR_TIMEOUT (0x107), this means that card did not respond even using just CMD line (data lines are not used at this point). Make sure that D3 line of the card is high (has a pullup; not pulled low by any circuit). If it is low dur...

Go to advanced search