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Fix reserved pins on ESP32

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This commit is contained in:
fvanroie 2023-06-14 14:46:21 +02:00
parent c1d17825e4
commit c38f2467b0
1 changed files with 7 additions and 7 deletions
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14
src/dev/esp32/esp32.cpp
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@ -302,7 +302,7 @@ void Esp32Device::update_backlight()
#else
uint32_t duty = _backlight_power ? map(_backlight_level, 0, 255, 0, 1023) : 0;
if(_backlight_invert) duty = 1023 - duty;
ledcWrite(BACKLIGHT_CHANNEL, duty); // ledChannel and value
ledcWrite(BACKLIGHT_CHANNEL, duty); // ledChannel and value
#endif
}
@ -357,7 +357,11 @@ uint16_t Esp32Device::get_cpu_frequency()
bool Esp32Device::is_system_pin(uint8_t pin)
{
// Also see esp32.cpp / hasp_gpio.cpp
#if defined(ESP32S2) // Arduino NUM_DIGITAL_PINS = 48 (but espressif says it only has 46)
#if defined(CONFIG_IDF_TARGET_ESP32S3)
if((pin >= 22) && (pin <= 25)) return true; // unavailable
if((pin >= 26) && (pin <= 32)) return true; // integrated SPI flash
if((pin >= 33) && (pin <= 37)) return true; // octal flash or PSram
#elif defined(CONFIG_IDF_TARGET_ESP32S2) // Arduino NUM_DIGITAL_PINS = 48 (but espressif says it only has 46)
// From https://hggh.github.io/esp32/2021/01/06/ESP32-S2-pinout.html, it looks like IO26 is for PSRAM
// More info https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/_images/esp32-s2_saola1-pinout.jpg
// Datasheet
@ -372,11 +376,7 @@ bool Esp32Device::is_system_pin(uint8_t pin)
// SPIWP = IO14 or IO38
if((pin >= 33) && (pin <= 38)) return true; // SPI flash
if(psramFound() && (pin == 26)) return true; // PSRAM. IO26 = SPICS1, the rest are shared with the flash
#elif defined(ESP32S3)
if((pin >= 22) && (pin <= 25)) return true; // unavailable
if((pin >= 26) && (pin <= 32)) return true; // integrated SPI flash
if((pin >= 33) && (pin <= 37)) return true; // octal flash or PSram
#else
#elif defined(CONFIG_IDF_TARGET_ESP32)
if((pin >= 6) && (pin <= 11)) return true; // integrated SPI flash
#ifndef HASP_USE_GPIO37
if(pin == 37) return true; // unavailable