Re: Announce: Free book on the ESP8266
Posted: Mon Oct 05, 2015 5:17 amDid you already have some text on the iram/irom ICACHE_FLASH_ATTR story?
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Announce: Free book on the ESP8266
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Posted: Mon Oct 05, 2015 5:17 amRe: Announce: Free book on the ESP8266
Posted: Mon Oct 05, 2015 10:30 amI think there are a few lines, but not much. A little on p120.
Re: Announce: Free book on the ESP8266
Posted: Mon Oct 05, 2015 10:57 amShould not be GPIO15 on page 25 on the ground?
Re: Announce: Free book on the ESP8266
Posted: Mon Oct 05, 2015 12:14 pmjankop wrote:Should not be GPIO15 on page 25 on the ground?
It is mentioned "GPIO 15 Should be low on boot and flash.", which is correct.
As a best practice, it is always better to use pullup/pulldown GPIOs thru resistors, not directly to VCC/GND, since those pins can be initialized as output and therefore producing a short.