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by ESP_Sprite
Fri Sep 21, 2018 10:45 am
Forum: General Discussion
Topic: If want to enable WiFi and BLE with partitions two ota, 4MB flash is enough or not?
Replies: 5
Views: 347

Re: If want to enable WiFi and BLE with partitions two ota, 4MB flash is enough or not?

What makes you doubt that? As usual with WiFi/BL coexistence, performance will be impacted (depending on what you try to do) but to my knowledge there's no reason it won't work.
by ESP_Sprite
Fri Sep 21, 2018 1:59 am
Forum: ESP32 IDF
Topic: External RAM enabled and performance tuning
Replies: 2
Views: 69

Re: External RAM enabled and performance tuning

RESERVE_INTERNAL means that there is a pool reserved for allocations that *need* to be in internal memory, for example because they're used in DMA transfers. 'Normal' allocations will not touch this pool, the memory in here is only given out if an allocation specifically requests internal memory.
by ESP_Sprite
Thu Sep 20, 2018 8:34 am
Forum: General Discussion
Topic: UART FIFO issue after updating ESP-IDF
Replies: 2
Views: 61

Re: UART FIFO issue after updating ESP-IDF

Can you also say what the issue was and what the solution was? It's a bit frustrating if someone from the future has a similar issue and just reads 'CLOSED" here instead of what you ran into.
by ESP_Sprite
Thu Sep 20, 2018 1:36 am
Forum: ESP32 Arduino
Topic: ESP32 WIFI_AP WITH WPS
Replies: 1
Views: 56

Re: ESP32 WIFI_AP WITH WPS

At the moment, that is not possible.
by ESP_Sprite
Thu Sep 20, 2018 1:32 am
Forum: ESP32 IDF
Topic: Finding the Data Buffer before sending the DAC pins, I need to apply an FFT to the signals.
Replies: 4
Views: 112

Re: Finding the Data Buffer before sending the DAC pins, I need to apply an FFT to the signals.

Your description doesn't make sense. Data buffer for what? What are you trying to do in the first place, as in what's the bigger picture, what problem are you trying to solve? okay, I think it was not clear enough, I need to process the audio signal packet before the sound is modulated in the DAC, ...
by ESP_Sprite
Thu Sep 20, 2018 1:26 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 237
Views: 36431

Re: What would you like to see in The Next Chip?

Yordan wrote:I would like to see in the next chip :

2. separate/isolated I2C bus.


What do you mean by this? The ESP32 already has 2 I2C peripherals, why would you want a 'separate' 3rd? Or do you mean galvanically isolated?
by ESP_Sprite
Wed Sep 19, 2018 4:41 am
Forum: ESP32 IDF
Topic: Finding the Data Buffer before sending the DAC pins, I need to apply an FFT to the signals.
Replies: 4
Views: 112

Re: Finding the Data Buffer before sending the DAC pins, I need to apply an FFT to the signals.

Your description doesn't make sense. Data buffer for what? What are you trying to do in the first place, as in what's the bigger picture, what problem are you trying to solve?
by ESP_Sprite
Wed Sep 19, 2018 4:37 am
Forum: ESP32 IDF
Topic: Special baud rate
Replies: 1
Views: 52

Re: Special baud rate

The ESP32 has a fractional baud rate generator. The calculation of the divider for this is (apb_clk*16)/baudrate. The apb_clk normally is 80MHz. So e.g. for 115555 baud, you'd get a divider of ((8000000*16)/(115555)) = 1107.698. Because this number needs to be integer, it's rounded up to 1108, which...
by ESP_Sprite
Wed Sep 19, 2018 4:28 am
Forum: Hardware
Topic: ESP-Wrover-Kit and ADS1220
Replies: 2
Views: 65

Re: ESP-Wrover-Kit and ADS1220

The CLK, SDx, etc lines you connected your ADS1220 to are used to connect the ESP32 to its flash chip, where the code is stored. (See e.g. the datasheet of the ESP-Wrover for the connections.) Suggest you use different pins; at the moment there's no software support for using the flash pins for anyt...

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