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by WiFive
Sat Sep 19, 2020 12:33 pm
Forum: ESP-IDF
Topic: Interfacing the Wroom32 with a 1.8v I2C Sensor
Replies: 10
Views: 1051

Re: Interfacing the Wroom32 with a 1.8v I2C Sensor

jjuduma wrote:
Sat Sep 19, 2020 6:33 am
I dont really need the flash except for bulk data storage
Common misconception but the flash is constantly in use by esp32 cache to access application code. So no don't switch the ldo to 1.8v, use a level shifter.
by WiFive
Sat Sep 19, 2020 12:26 am
Forum: General Discussion
Topic: ESP32 Serial Number
Replies: 5
Views: 621

Re: ESP32 Serial Number

Search for CP21xx Device Customization Software
by WiFive
Sat Aug 22, 2020 11:12 pm
Forum: General Discussion
Topic: Issue after enabling secure boot and flash encryption togeather [IDFGH-3857]
Replies: 14
Views: 2308

Re: Issue after enabling secure boot and flash encryption togeather [IDFGH-3857]

at-least 5 modules out of 25 modules
If the same flashing process is failing on only a few modules it sounds like a hardware issue
by WiFive
Wed Aug 19, 2020 3:05 am
Forum: General Discussion
Topic: Strapping pins and SDIO slave timing
Replies: 7
Views: 930

Re: Strapping pins and SDIO slave timing

The intention is so you can use esp32 without a flash chip connected to a host processor over sdio like a more traditional wifi chip. You would load a simple wifi firmware to ram on boot over sdio and all the network processing would be done on the host processor. It's not really supported, at least...
by WiFive
Tue Aug 18, 2020 12:54 pm
Forum: General Discussion
Topic: SPI SRAM test fail
Replies: 4
Views: 605

Re: SPI SRAM test fail

That may or may not be your problem, there is a list of psram chipid here, but it was removed later. https://github.com/espressif/esp-idf/co ... eedd4cc720
by WiFive
Tue Aug 18, 2020 1:12 am
Forum: General Discussion
Topic: SPI SRAM test fail
Replies: 4
Views: 605

Re: SPI SRAM test fail

Have you tried SPIRAM_2T_MODE in idf v4.3?
by WiFive
Sun Aug 09, 2020 1:52 am
Forum: Hardware
Topic: ESP32 Security - PKI Support
Replies: 3
Views: 755

Re: ESP32 Security - PKI Support

There is no separate secure element hardware with private key storage. If you need that maybe you want wroom32-se? Otherwise just rely on secure boot and flash encryption to protect your keys. You could sign and verify your key partitions with the same PKI.

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