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more gpio pin updates

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proddy
2026-01-05 13:31:27 +01:00
parent 29ea67f438
commit 18a55d4622
1 changed files with 50 additions and 37 deletions
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87
src/core/system.cpp
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@@ -2880,54 +2880,67 @@ std::vector<uint8_t, AllocatorPSRAM<uint8_t>> System::string_range_to_vector(con
// initialize a list of valid GPIOs based on the ESP32 board // initialize a list of valid GPIOs based on the ESP32 board
// string_to_vector() take two strings, the first is the range of GPIOs to use, the second is a list of GPIOs to exclude // string_to_vector() take two strings, the first is the range of GPIOs to use, the second is a list of GPIOs to exclude
// note: we always allow 0, which is used to indicate Dallas or LED is disabled // notes:
// we always allow 0 (which is usually a strapping pin), because it's used to indicate whether EMS-ESP Dallas or the LED is disabled
// we allow UART0, 1 and 2 as they are configurable
// strapping pins are disabled as they can affect boot behaviour
// we accept GPIOs that are fixed on BBQKees boards
//
void System::set_valid_system_gpios() { void System::set_valid_system_gpios() {
valid_system_gpios_.clear(); // reset system list valid_system_gpios_.clear(); // reset system list
used_gpios_.clear(); // reset used list used_gpios_.clear(); // reset used list
// get free gpios based on board/platform type // get free gpios based on board/platform type
#if CONFIG_IDF_TARGET_ESP32C3 #if CONFIG_IDF_TARGET_ESP32C3
// non valid GPIOs: // https://docs.espressif.com/projects/esp-idf/en/stable/esp32c3/api-reference/peripherals/gpio.html
// 3 and 10 are strapping pins that can affect boot behaviour // GPIO2, GPIO8 - GPIO9 = strapping pins
// 8 is connected to the internal ULP (Ultra Low Power) coprocessor and should be avoided for external connections // GPIO12 - GPIO17 = used for SPI flash and PSRAM
// 11 is used for internal flash connection // GPIO18 - GPIO19 = USB-JTAG
// notes on valid GPIOs: //
// there are no input only pins on a C3 // notes on what is allowed:
// 9 is used as the button on BOARD_C3_MINI_V1 // GPIO10 = button on BOARD_C3_MINI_V1
valid_system_gpios_ = string_range_to_vector("0-21", "3, 10, 8, 11"); valid_system_gpios_ = string_range_to_vector("0-21", "2, 8-9, 12-17, 18-19");
#elif CONFIG_IDF_TARGET_ESP32S2 #elif CONFIG_IDF_TARGET_ESP32S2
// non valid GPIOs: // https://docs.espressif.com/projects/esp-idf/en/stable/esp32s2/api-reference/peripherals/gpio.html
// 3, 45-46 are strapping pins that can affect boot behaviour // GPIO26 - GPIO32 = SPI flash and PSRAM
// 6-11 and 35 are used for SPI flash and PSRAM // GPIO45 - GPIO46 = strapping pins
// notes on valid GPIOs: // GPIO39 - GPIO42 = USB-JTAG
// 34-39 are input only //
valid_system_gpios_ = string_range_to_vector("0-46", "3, 45-46, 6-11, 35"); // notes on what is allowed:
valid_system_gpios_ = string_range_to_vector("0-46", "26-32, 45-46, 39-42");
#elif CONFIG_IDF_TARGET_ESP32S3 #elif CONFIG_IDF_TARGET_ESP32S3
// non valid GPIOs: // https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/api-reference/peripherals/gpio.html
// 3 is a strapping pin that could affect boot behaviour if pulled high/low at boot time // GPIO3, GPIO45 - GPIO46 = strapping pins
// 6-7, 9-11 are used for SPI flash and PSRAM (we allow 8) // GPIO26 - GPIO32 = SPI flash and PSRAM and not recommended
// 19-20 are USB-JTAG pins // GPIO33 - GPIO37 = Octal flash/PSRAM
// 26-32 are usually used for SPI flash and PSRAM and not recommended for other use // GPIO19 - GPIO20 = USB-JTAG
// 33-37 are used for Octal SPI flash or PSRAM //
// 45-46 are strapping pins that can affect boot behaviour // notes on what is allowed:
// notes on valid GPIOs: // GPIO11 - GPIO19 = ADC analog input only pins
// 11-20 are ADC analog input only pins // GPIO47 - GPIO48 = valid on a Wemos S3
// 47 and 48 are valid on a Wemos S3 (https://github.com/emsesp/EMS-ESP32/issues/2874) // GPIO8 = used by Liligo S3 board profile for Rx
// 16 and 17 is UART2, which we allow valid_system_gpios_ = string_range_to_vector("0-48", "3, 45-46, 26-32, 33-37, 19-20");
// Liligo S3 profile uses 8 for Rx
valid_system_gpios_ = string_range_to_vector("0-48", "3, 6-7, 9-11, 19-20, 26-32, 33-37, 45-46");
#elif CONFIG_IDF_TARGET_ESP32 #elif CONFIG_IDF_TARGET_ESP32
// non valid GPIOs: // https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/peripherals/gpio.html
// 12-13, 15, 25-27 are ADC2 and can conflict with the Wi-Fi module (12-15 is also USB-JTAG) // GPIO5 = strapping pins
// 6-11 and 16-17 are used for SPI flash and PSRAM // GPIO6 - GPIO11, GPIO16 - GPIO17 = used for SPI flash and PSRAM
// notes on valid GPIOs: // GPIO12 - GPIO15 = USB-JTAG (12 and 15 are also strapping pins) but we allow GPIO14 (see below)
// 2, 4, 14 are used on BBQKees boards for the LED, Dallas and/or Rx //
// 25-26 are DAC (Digital-to-Analog Converter) pins, and can be used // notes on what is allowed:
// 34-39 are input only, and can't be used for output (36=internal supply_voltage, 39=internal core_voltage on a BBQKees E32V2.2) // GPIO34, GPIO35, GPIO37 = input only
// GPIO2, GPIO4, GPIO14 = used on BBQKees boards for either LED, Dallas or Rx
// GPIO25 - GPIO37 = ADC2
// GPIO32 - GPIO39 = ADC1
// GPIO36 = used on BBQKees boards for supply_voltage (E32V2.2) (note may conflict with WiFI on other boards)
// GPIO39 = used on BBQKees boards for core_voltage (E32V2.2) (note may conflict with WiFI on other boards)
if (ESP.getPsramSize() > 0) { if (ESP.getPsramSize() > 0) {
valid_system_gpios_ = string_range_to_vector("0-39", "12-13, 15, 25-27, 6-11, 16-17"); // remove PSRAM pins from the list // remove PSRAM pins from the list
valid_system_gpios_ = string_range_to_vector("0-39", "5, 6-11, 16-17, 12, 13, 15");
} else { } else {
valid_system_gpios_ = string_range_to_vector("0-39", "12-13, 15, 25-27"); valid_system_gpios_ = string_range_to_vector("0-39", "5, 12, 13, 15");
} }
#elif defined(EMSESP_STANDALONE) #elif defined(EMSESP_STANDALONE)
valid_system_gpios_ = string_range_to_vector("0-39"); valid_system_gpios_ = string_range_to_vector("0-39");