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boards/esp32c3-devkit: enable RGB LED support

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This commit is contained in:
Gunar Schorcht 2023-03-18 13:36:26 +01:00
parent c4400e8964
commit f7c7337efb
3 changed files with 10 additions and 6 deletions
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4
boards/esp32c3-devkit/doc.txt
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@ -62,8 +62,7 @@ see section \ref esp32_mcu_esp32 "ESP32 SoC Series".
### Board Configuration {#esp32c3_devkit_board_configuration}
ESP32-C3-DevKit boards have no special hardware on board with the exception
of a single pin RGB-LED that uses a special bit-oriented protocol to
control the RGB-LED by 24-bit RGB values which is not supported yet.
of a single pin RGB-LED.
All GPIOs are simply broken out for flexibility. Therefore, the board
configuration is the most flexible one which provides:
@ -108,6 +107,7 @@ ADC | GPIO0, GPIO1, GPIO2, GPIO3, GPIO4, GPIO5 | | see \ref esp32_ad
PWM_DEV(0) | GPIO3, GPIO4 | - | \ref esp32_pwm_channels "PWM Channels"
I2C_DEV(0):SCL | GPIO4 | | \ref esp32_i2c_interfaces "I2C Interfaces"
I2C_DEV(0):SDA | GPIO5 | | \ref esp32_i2c_interfaces "I2C Interfaces"
RGB-LED | GPIO8 | supported by driver module `ws281x` | |
SPI_DEV(0):CLK | GPIO6 | SPI2_HOST (FSPI) is used | \ref esp32_spi_interfaces "SPI Interfaces"
SPI_DEV(0):MISO | GPIO2 | SPI2_HOST (FSPI) is used | \ref esp32_spi_interfaces "SPI Interfaces"
SPI_DEV(0):MOSI | GPIO7 | SPI2_HOST (FSPI) is used | \ref esp32_spi_interfaces "SPI Interfaces"

10
boards/esp32c3-devkit/include/board.h
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@ -73,11 +73,15 @@
* @name LED (on-board) configuration
*
* ESP32-C3-DevKit boards have a SK68XXMINI-HS smart RGB-LED connected to
* GPIO8 on-board. This RGB-LEDs uses a special bit-oriented protocol to
* control the RGB-LED by 24-bit RGB values. Therefore, it can't be used as
* default LED definition for RIOT.
* GPIO8 on-board. The WS281x driver module `ws281x` can be used to control it.
* @{
*/
#ifndef WS281X_PARAM_PIN
#define WS281X_PARAM_PIN (GPIO8) /**< GPIO pin connected to the data pin */
#endif
#ifndef WS281X_PARAM_NUMOF
#define WS281X_PARAM_NUMOF (1U) /**< Number of LEDs chained */
#endif
/** @} */
/* include common board definitions as last step */

2
boards/esp32s2-devkit/include/periph_conf.h
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@ -69,7 +69,7 @@ extern "C" {
*
* @note As long as the GPIOs listed in DAC_GPIOS are not initialized as DAC
* channels with the `dac_init` function, they can be used for other
* purposes.
* purposes. GPIO18 is also used for the RGB-LED.
*/
#ifndef DAC_GPIOS
#define DAC_GPIOS { GPIO17, GPIO18 }