Re: strapping pins and deep sleepby LJH » Tue Jan 03, 2023 6:20 am You could read 2.8 Strapping Pins in the ESP32-S3 datasheet or other chip datasheet, then it is written: During the chip’s system reset (power-on-reset, RTC watchdog reset, brownout reset, analog super watch...
ESP32 has 6 strapping pins: • MTDI/GPIO12: internal pull-down • GPIO0: internal pull-up • GPIO2: internal pull-down • GPIO4: internal pull-down • MTDO/GPIO15: internal pull-up • GPIO5: internal pull-up Software can read the value of these 6 bits from the register ...
I am looking at the latest release (as of the date of this post) of the ESP-WROOM-32 Datasheet. On page 5 there is a table of the 6 strapping pins used by the ESP32. My puzzle is that the pin known as MTDO is listed twice. Is this an error? Should one of these two instanc...
In ESP32-WROOM-32E, is there a need to set the default states of the strapping pins through hardware or is it software configurable? Also, is there a defined boot sequence? Is there a requirement of external circuitry (Other than the power supply components and filters) to boot up the ...
I'm somewhat confused by the documentation on strapping pins. I think there's a mistake. Rev 1.5 of ESP32 Datasheet section 2.4 discusses them. It says there are 5 while Rev 2.2 of the Technical Reference Manual shows 6 bits used in the GPIO_STRAPPING register. The ESP32 Datasheet also...
(EN) signal to switch the strapping jumpers on and off the pins of the processor. I.e. when the reset/EN pins goes low, the buffer will pass the strapping jumpers onto processor pins. When reset/EN goes high the buffer will tri state and I can use the IOs for what ever I want ...
Dear all, I would like to know if a 4.7 Kohm external pull up or pull down is sufficient for the Strapping pins. I will be powering the ESP-WROOM-32D Module with 3V Power supply. Hence Pull ups are connected to 3V supply. Thanks in advance...
Re: strapping pins and deep sleepby LJH » Tue Jan 03, 2023 6:20 am You could read 2.8 Strapping Pins in the ESP32-S3 datasheet or other chip datasheet, then it is written: During the chip’s system reset (power-on-reset, RTC watchdog reset, brownout reset, analog super watch...
However, I'm now puzzled how does the ESP32 get set to boot in SDIO slave mode? Basically, I'm creating a design and want to know that states of IO pins connected to other devices aren't going to cause the ESP to boot in a wrong mode. ...
ESP32-S3: Strapping pins undocumented pull-up resistors (IDFGH-8243)#9731Description yannishuber opened on Sep 6, 2022 Answers checklist. I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there. I have updated my IDF branch (master or release) to the ...