docs(gpio): removed strapping description in programming guide

Closes https://github.com/espressif/esp-idf/issues/18969
This commit is contained in:
Chen Chen
2026-08-26 10:28:10 +08:00
parent ae2088092e
commit 26a8308400
26 changed files with 146 additions and 792 deletions
@@ -26,62 +26,50 @@ The table below provides more information on pin usage, and please note the comm
- ADC1_CH0
- LP_GPIO0
-
* - GPIO1
- ADC1_CH1
- LP_GPIO1
-
* - GPIO2
- ADC1_CH2
- LP_GPIO2
-
* - GPIO3
- ADC1_CH3
- LP_GPIO3
-
* - GPIO4
- ADC1_CH4
- LP_GPIO4
- Strapping pin
-
* - GPIO5
- ADC1_CH5
- LP_GPIO5
- Strapping pin
-
* - GPIO6
- ADC1_CH6
- LP_GPIO6
-
* - GPIO7
-
- LP_GPIO7
-
* - GPIO8
-
-
- Strapping pin
-
* - GPIO9
-
-
- Strapping pin
-
* - GPIO10
-
-
-
* - GPIO11
-
-
-
* - GPIO12
-
-
@@ -96,52 +84,42 @@ The table below provides more information on pin usage, and please note the comm
-
-
-
* - GPIO15
-
-
- Strapping pin
-
* - GPIO16
-
-
-
* - GPIO17
-
-
-
* - GPIO18
-
-
-
* - GPIO19
-
-
-
* - GPIO20
-
-
-
* - GPIO21
-
-
-
* - GPIO22
-
-
-
* - GPIO23
-
-
-
* - GPIO24
-
-
@@ -179,10 +157,10 @@ The table below provides more information on pin usage, and please note the comm
.. note::
- Strapping pin: GPIO4, GPIO5, GPIO8, GPIO9, and GPIO15 are strapping pins. For more information, please refer to `datasheet <{IDF_TARGET_DATASHEET_EN_URL}>`__.
- SPI0/1: GPIO24 ~ GPIO30 are usually used for SPI flash and not recommended for other uses.
- USB-JTAG: GPIO12 and GPIO13 are used by USB-JTAG by default. If they are reconfigured to operate as normal GPIOs, USB-JTAG functionality will be disabled.
- For chip variants with an SiP flash built in, GPIO24 ~ GPIO30 are dedicated to connecting the SiP flash; GPIO10 ~ GPIO11 are not led out to any chip pins; therefore, only the remaining 22 GPIO pins are available.
- Strapping pin: Some pins are used as strapping pins. For more information, please refer to *{IDF_TARGET_NAME} datasheet* > *Boot Configurations* [`PDF <{IDF_TARGET_DATASHEET_EN_URL}#cd-pins-strap>`__].
- SPI0/1: GPIO24 ~ GPIO30 are usually used for SPI flash and not recommended for other uses.
- USB-JTAG: GPIO12 and GPIO13 are used by USB-JTAG by default. If they are reconfigured to operate as normal GPIOs, USB-JTAG functionality will be disabled.
- For chip variants with an SiP flash built in, the SPI0/1 pins and GPIO10 ~ GPIO11 are not led out; therefore, only the remaining 22 GPIO pins are available.
- For chip variants without an in-package flash, GPIO14 is not led out to any chip pins.
---