Search found 2105 matches

by WiFive
Mon Jan 21, 2019 2:15 pm
Forum: General Discussion
Topic: Configuring ESP32 to execute from SPI RAM
Replies: 7
Views: 665

Re: Configuring ESP32 to execute from SPI RAM

Psram is mapped into dram and the CPU cannot execute instructions from dram
by WiFive
Tue Jan 15, 2019 5:02 am
Forum: General Discussion
Topic: (solved) LWIP/sockets memory leak?
Replies: 6
Views: 296

Re: LWIP/sockets memory leak?

Is it still there if you don't stop/start wifi? Although 3.1.1 includes https://github.com/espressif/esp32-wifi ... 32f332c4e7 so maybe not.
by WiFive
Tue Jan 15, 2019 3:26 am
Forum: ESP32 IDF
Topic: High Level Interrupt on external GPIO Interrupt
Replies: 6
Views: 263

Re: High Level Interrupt on external GPIO Interrupt

Are you sure ESP_INTR_FLAG_HIGH returns a level 5 interrupt since it matches more than one level?
by WiFive
Tue Jan 15, 2019 3:10 am
Forum: General Discussion
Topic: running ESP32-D2WD at 240 MHz ??
Replies: 3
Views: 197

Re: running ESP32-D2WD at 240 MHz ??

You can put small programs wholly into iram, most people are using too big of a program to do that. pico D4 comes with passives and the crystal inside, which you would have to fit in that 24mm² including trace routing to come out even. It is possible the reason for the 160mhz limitation is thermal c...
by WiFive
Sun Jan 13, 2019 10:21 pm
Forum: ESP32 IDF
Topic: IRQ Startup latency
Replies: 11
Views: 429

Re: IRQ Startup latency

He meant did you also set ESP_INTR_FLAG_IRAM
https://docs.espressif.com/projects/esp ... t-handlers
by WiFive
Wed Jan 09, 2019 3:38 am
Forum: General Discussion
Topic: (solved) I2C device poses a challenge
Replies: 17
Views: 679

Re: I2C device poses a challenge

Yes
by WiFive
Tue Jan 08, 2019 4:34 am
Forum: Hardware
Topic: MTDO Strapping for UART 0
Replies: 1
Views: 102

Re: MTDO Strapping for UART 0

There are 2 bootloaders, strapping pin controls 1st, menuconfig controls 2nd. Internal pull is 30-40k I believe.
by WiFive
Tue Jan 08, 2019 2:11 am
Forum: ESP32 IDF
Topic: SSL Certificate Renewal
Replies: 6
Views: 513

Re: SSL Certificate Renewal

Does your browser download a new certificate every 90 days? No, because the browser trusts the root certificate which has a longer expiration. However it can still expire so you have to be prepared to update it and recover from a device being offline for an extended time during which the cert expire...

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