Search found 3 matches

by Alizame
Thu Apr 06, 2017 11:00 am
Forum: General Discussion
Topic: ESP32 - GPIO speed lower than expected
Replies: 10
Views: 109315

Re: ESP32 - GPIO speed lower than expected

Ok, I can confirm that it has something todo with the disabling of the interrupts. But is there any explanation why it only happens if I try to write to w1ts directly (and not with or) and everything works fine for w1tc? Btw: is there any ETA on when I2S-Parallel Driver/Documentation will be availab...
by Alizame
Wed Apr 05, 2017 2:04 pm
Forum: General Discussion
Topic: ESP32 - GPIO speed lower than expected
Replies: 10
Views: 109315

Re: ESP32 - GPIO speed lower than expected

A new problem arrived :D code: https://pastebin.com/7ZC6Y4yU If I write to GPIO.out_w1ts directly (like "GPIO.out_w1ts = (1 << 23);" ), my Core0 crashes or something like that (TG1WDT_SYS_RESET happens and Core0 doesn't print that it got to my loop function, but the GPIO gets set correctly until the...
by Alizame
Tue Apr 04, 2017 3:16 pm
Forum: General Discussion
Topic: ESP32 - GPIO speed lower than expected
Replies: 10
Views: 109315

ESP32 - GPIO speed lower than expected

Hi guys :) I recently got my ESP32 (it's Rev0, I already checked that) and it runs fine, except that I don't get why the maximum toggle frequency for GPIOs seems to be 4 MHz. w1ts w1tc 4mhz.png Is this really the maximum (the peripheral bus clock rate is 80MHz, so shouldn't it be 40MHz?)? Or are now...