Search found 2052 matches

by ESP_Sprite
Wed Dec 12, 2018 3:20 am
Forum: ESP32 IDF
Topic: strong vApplicationStackOverflowHook
Replies: 1
Views: 31

Re: strong vApplicationStackOverflowHook

Do you happen to have your custom application hook in a .c file with nothing else in it? If so, you may have to make sure there's an unresolved symbol in there, otherwise the linker will discard the entire .o file.
by ESP_Sprite
Wed Dec 12, 2018 3:18 am
Forum: ESP32 IDF
Topic: Memory allocation thread and interrupt safety
Replies: 2
Views: 49

Re: Memory allocation thread and interrupt safety

They are threadsafe, but I would not assume they are interrupt-safe. I'm not sure why you would do a malloc in an ISR anyway, and even if it worked it does not sound like a good idea;l what's your use case there?
by ESP_Sprite
Wed Dec 12, 2018 3:15 am
Forum: ESP32 IDF
Topic: FreeRtos slow?
Replies: 10
Views: 296

Re: FreeRtos slow?

There's a lot of things you cannot do from an ISR (actually, you're supposed to only call functions that are specifically marked as such, like the FreeRTOS *FromISR functions) and doing a fprintf is amongst one of them. The way to go here would be to create a FreeRTOS queue and push the samples into...
by ESP_Sprite
Wed Dec 12, 2018 3:09 am
Forum: General Discussion
Topic: NVS Flash
Replies: 1
Views: 44

Re: NVS Flash

No, you do not need to do anything. NVS takes care of space management and garbage collection all by itself.
by ESP_Sprite
Tue Dec 11, 2018 7:43 am
Forum: ESP32 Arduino
Topic: 74HC595 Shift Register
Replies: 2
Views: 76

Re: 74HC595 Shift Register

Moved to the Arduino subforum.
by ESP_Sprite
Tue Dec 11, 2018 2:35 am
Forum: ESP32 Arduino
Topic: OTA Does not seem to work if you use AP or Repeater
Replies: 3
Views: 114

Re: OTA Does not seem to work if you use AP or Repeater

Moving this to the Arduino subforum, as it's specific to the Arduino OTA method.
by ESP_Sprite
Sat Dec 08, 2018 4:41 am
Forum: ESP32 IDF
Topic: FreeRtos slow?
Replies: 10
Views: 296

Re: FreeRtos slow?

You can use I2S to sample the ADC using DMA, suggest you refer to the I2S driver for more info.
by ESP_Sprite
Fri Dec 07, 2018 2:04 am
Forum: ESP32 IDF
Topic: Cannot mount more than two FATFS partitions
Replies: 3
Views: 154

Re: Cannot mount more than two FATFS partitions

If you want, you can open an issue on Github about this, as a feature request to put these things into Menuconfig.
by ESP_Sprite
Fri Dec 07, 2018 2:03 am
Forum: ESP32 IDF
Topic: 怎么通过i2s_read_bytes()函数读取mic数据啊?
Replies: 5
Views: 206

Re: 怎么通过i2s_read_bytes()函数读取mic数据啊?

Any chance you can play a sample (100Hz sine wave or so) into the microphone and dump some of the data you get back? Perhaps it's as simple as a timing issue or something.
by ESP_Sprite
Fri Dec 07, 2018 2:00 am
Forum: ESP32 MDF
Topic: ESP32 Mesh without router.
Replies: 2
Views: 136

Re: ESP32 Mesh without router.

Moved to MDF forum.

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