Search found 494 matches

by mikemoy
Thu Mar 15, 2018 3:00 pm
Forum: ESP-IDF
Topic: I2C crash with release/v3.0 - what's an effective way to debug this?
Replies: 28
Views: 14436

Re: I2C crash with release/v3.0 - what's an effective way to debug this?

Just curious about this. The OP does not give enough information to actually help you. What sensor are you trying to talk to. Are you using IDF or Arduino, What ESP32 are your using. Do you have pullup resistors on the I2C lines and what are there values. You have not shared any of your code so that...
by mikemoy
Thu Mar 15, 2018 12:46 pm
Forum: General Discussion
Topic: ESP-WROOM-32 / GPIO16/17
Replies: 12
Views: 12141

Re: ESP-WROOM-32 / GPIO16/17

Just wanted you you to know that 4.7k for a pullup on i2c is typical for a 5v rail. It's best to use a 2.2k for 3.3v.
Not saying this will fix your issue, just something to be aware of next time ;)
by mikemoy
Sat Feb 17, 2018 5:51 am
Forum: General Discussion
Topic: How to get "CPU load" and "Memory Usage"
Replies: 16
Views: 21684

Re: How to get "CPU load" and "Memory Usage"

What you want is built into the RTOS, but sadly ESP has not added it in.
void vTaskGetRunTimeStats( char *pcWriteBuffer );
by mikemoy
Fri Jan 12, 2018 9:16 pm
Forum: ESP-IDF
Topic: LCD SPI & I2S - Serial & Parallel - Speed vs Ressources
Replies: 6
Views: 7126

Re: LCD SPI & I2S - Serial & Parallel - Speed vs Ressources

@Aromo1, Kinda embarrassed to ask this, but being new to ESP32, I am looking to do this as well. I am impressed with the speeds you achieved. "full frame transfer using DMA @ 78Mbit/s ! " Might you be willing to show you code, or at least the hart of that code so that I can see how the DMA is dumpin...

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