Search found 49 matches

by kostyan5
Tue Aug 28, 2018 11:36 pm
Forum: ESP32 IDF
Topic: DHCP Release API
Replies: 2
Views: 178

Re: DHCP Release API

WiFive wrote:tcpip_adapter_stop
Thank you!
by kostyan5
Tue Aug 28, 2018 10:48 pm
Forum: ESP32 IDF
Topic: DHCP Release API
Replies: 2
Views: 178

DHCP Release API

Hi, Is there a way to have ESP32 client send "DHCP release" to the access point? In our use case, we may have hundreds of devices all connecting to the same access point for a few seconds every half hour. Currently, first 254 to connect get IPs and default DHCP lease time is 24 hours. This means tha...
by kostyan5
Fri Aug 17, 2018 6:48 pm
Forum: Hardware
Topic: What is the purpose of CAP1 CAP2 pins?
Replies: 5
Views: 749

Re: What is the purpose of CAP1 CAP2 pins?

Thanks for clarifying. Do you have any numbers regarding the difference in Deep Sleep current draw with vs without CAP1 and CAP2? Current data sheet says Power Sleep (RTC timer + RTC memory) is 10uA. What sort of increase are we talking about if CAP1 and CAP2 are removed? Some rought estimate would ...
by kostyan5
Wed Aug 15, 2018 2:04 pm
Forum: Hardware
Topic: What is the purpose of CAP1 CAP2 pins?
Replies: 5
Views: 749

Re: What is the purpose of CAP1 CAP2 pins?

Bump. Anyone?
by kostyan5
Thu Aug 09, 2018 2:42 pm
Forum: Hardware
Topic: What is the purpose of CAP1 CAP2 pins?
Replies: 5
Views: 749

Re: What is the purpose of CAP1 CAP2 pins?

Can anyone from espressif clarify this please?
by kostyan5
Tue Aug 07, 2018 5:29 pm
Forum: Hardware
Topic: What is the purpose of CAP1 CAP2 pins?
Replies: 5
Views: 749

What is the purpose of CAP1 CAP2 pins?

The hardware design guide says the following but it's still very unclear: The schematics of Pin47 CAP2 and Pin48 CAP1 is shown in Figure 8. C5 (10 nF) that connects to CAP1 should be of high precision. For the RC circuit between CAP1 and CAP2 pins, please refer to Figure 8. Removing the RC circuit m...
by kostyan5
Wed Jun 27, 2018 11:38 pm
Forum: ESP32 IDF
Topic: Flashing with no factory partition
Replies: 2
Views: 266

Re: Flashing with no factory partition

That's it. Thanks.
by kostyan5
Wed Jun 27, 2018 6:27 pm
Forum: ESP32 IDF
Topic: Flashing with no factory partition
Replies: 2
Views: 266

Flashing with no factory partition

A recent commit (3e0ac4db7931b7c234c180e743b7708d09482e70) removed PARTITION_TABLE_CUSTOM_APP_BIN_OFFSET and is now extracting APP_OFFSET by looking for app/factory in partition table. Our partition table doesn't have a factory subtype. Instead we use two app/ota partitions (app/ota_0 and app/ota_1)...
by kostyan5
Mon Apr 09, 2018 9:11 pm
Forum: General Discussion
Topic: Flash write speed
Replies: 1
Views: 352

Re: Flash write speed

After further digging, it turns out that that particular Macronix part defaults to Ultra Low Power mode which reduces speeds. This almost certainly explains what I'm experiencing.
by kostyan5
Mon Apr 09, 2018 7:46 pm
Forum: General Discussion
Topic: Flash write speed
Replies: 1
Views: 352

Flash write speed

Hello, We recently switched the SPI flash chip on our product. We went from Winbond (W25Q32JV) to Macronix (MX25R3235F). For some reason flash write speeds decreased by a factor of 3. This includes both flashing and formatting SPIFFS speeds. With winbond we were able to flash fw or format spiffs in ...

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