Search found 1624 matches

by WiFive
Tue Apr 24, 2018 8:43 pm
Forum: General Discussion
Topic: using the external flash
Replies: 5
Views: 36

Re: using the external flash

Reserve an area using the partition table esp_partition_read(), esp_partition_write(), esp_partition_erase_range() are equivalent to spi_flash_read(), spi_flash_write(), spi_flash_erase_range(), but operate within partition boundaries https://esp-idf.readthedocs.io/en/latest/api-reference/storage/sp...
by WiFive
Mon Apr 23, 2018 1:14 pm
Forum: General Discussion
Topic: GPIO interrupt flags
Replies: 5
Views: 121

Re: GPIO interrupt flags

That is exactly what the gpio isr service does for you
by WiFive
Mon Apr 23, 2018 4:09 am
Forum: General Discussion
Topic: GPIO interrupt flags
Replies: 5
Views: 121

Re: GPIO interrupt flags

Gpio interrupts are already multiplexed into one cpu interrupt so you don't need any flags to make it shared.
by WiFive
Sun Apr 22, 2018 11:16 am
Forum: ESP32 SDK
Topic: RTC GPIO output level in deep sleep mode
Replies: 2
Views: 120

Re: RTC GPIO output level in deep sleep mode

http://esp-idf.readthedocs.io/en/latest ... gpio_num_t

But you probably should be using latching relays or latching solenoid valves
by WiFive
Fri Apr 20, 2018 9:10 pm
Forum: ESP32 HDK
Topic: ESP-WROM-32 + SPIRAM is now possible
Replies: 4
Views: 257

Re: ESP-WROM-32 + SPIRAM is now possible

Nice. I think it is possible to give each cpu access to separate external 4MB memory regions so 8 total, but they access it through same address space. Mmu/cache handles the mapping.

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