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by WiFive
Mon Sep 28, 2020 8:24 pm
Forum: Hardware
Topic: MCPWM understanding
Replies: 2
Views: 288

Re: MCPWM understanding

Apb clock is basically fixed to 80mhz. In the example the prescaler is set to 0 so each tick is 12.5ns.
by WiFive
Sat Sep 26, 2020 4:38 pm
Forum: ESP-IDF
Topic: ESP32 reboots, SPI flash issues and console baudrates...
Replies: 4
Views: 320

Re: ESP32 reboots, SPI flash issues and console baudrates...

It thinks the 2nd stage bootloader is 4mb so it takes too long to try and load it causing a wdt reset. This could be a bit error in flash read which when considering the baud rate issue may be due to unstable xtal clock or bad register value. If a hard reset fixes it then it implies something corrup...
by WiFive
Thu Sep 24, 2020 2:08 am
Forum: General Discussion
Topic: Issue after enabling secure boot and flash encryption togeather [IDFGH-3857]
Replies: 14
Views: 1222

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

You also have to burn and save a copy of the efuse secure boot key if you want to reflash signed and encrypted bootloader.
by WiFive
Mon Sep 21, 2020 8:25 pm
Forum: ESP-IDF
Topic: connecting internal GPIOs to create a pipe
Replies: 4
Views: 298

Re: connecting internal GPIOs to create a pipe

Yes reconfigure mux
by WiFive
Mon Sep 21, 2020 8:22 pm
Forum: General Discussion
Topic: GPIO34-39 pullup workaround?
Replies: 3
Views: 152

Re: GPIO34-39 pullup workaround?

No workaround for 34-39
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: 454

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.

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