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Enable IO20 on ESP32

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Some newer ESP32 variants (like ESP32-PICO-V3 and ESP32-PICO-MINI-02)
do implement this pin and it can be used as a normal GPIO.

Fixes #6016
Fixes #6837

Closes https://github.com/espressif/esp-idf/pull/6918

(cherry picked from commit 6deaefde69)
This commit is contained in:
Alberto García Hierro 2021-04-21 22:01:14 +01:00 committed by songruojing
parent e173e47322
commit aafbb8f5a8
1 changed files with 1 additions and 1 deletions
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2
components/soc/esp32/gpio_periph.c
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@ -35,7 +35,7 @@ const uint32_t GPIO_PIN_MUX_REG[GPIO_PIN_COUNT] = {
IO_MUX_GPIO17_REG,
IO_MUX_GPIO18_REG,
IO_MUX_GPIO19_REG,
0,
IO_MUX_GPIO20_REG, // This corresponding pin is only available on ESP32-PICO-V3 chip package
IO_MUX_GPIO21_REG,
IO_MUX_GPIO22_REG,
IO_MUX_GPIO23_REG,