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cpu/esp32: fix DAC documentation for ESP32-S2

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Gunar Schorcht 2023-02-17 12:39:01 +01:00
parent 99e07a6786
commit 2ac4189784
2 changed files with 7 additions and 3 deletions
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2
cpu/esp32/doc.txt
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@ -858,7 +858,7 @@ as DAC channels with the #dac_init function, they can be used for other
purposes. purposes.
DACs are currently only supported for the \ref esp32_dac_channels_esp32 DACs are currently only supported for the \ref esp32_dac_channels_esp32
"ESP32 SoC" variant. "ESP32 SoC" and the \ref esp32_dac_channels_esp32s2 "ESP32-S2 SoC" variant.
[Back to table of contents](#esp32_toc) [Back to table of contents](#esp32_toc)

8
cpu/esp32/doc_esp32s2.txt
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@ -91,8 +91,8 @@ GPIO13 | In/Out | X | X | X | - | -
GPIO14 | In/Out | X | X | X | - | - GPIO14 | In/Out | X | X | X | - | -
GPIO15 | In/Out | X | X | X | XTAL_32K_P | External 32k crystal GPIO15 | In/Out | X | X | X | XTAL_32K_P | External 32k crystal
GPIO16 | In/Out | X | X | X | XTAL_32K_N | External 32k crystal GPIO16 | In/Out | X | X | X | XTAL_32K_N | External 32k crystal
GPIO17 | In/Out | X | X | X | - | - GPIO17 | In/Out | X | X | X | DAC1 | -
GPIO18 | In/Out | X | X | X | - | - GPIO18 | In/Out | X | X | X | DAC2 | -
GPIO19 | In/Out | X | X | X | USB D- | USB 2.0 OTG / USB-JTAG bridge GPIO19 | In/Out | X | X | X | USB D- | USB 2.0 OTG / USB-JTAG bridge
GPIO20 | In/Out | X | X | X | USB D+ | USB 2.0 OTG / USB-JTAG bridge GPIO20 | In/Out | X | X | X | USB D+ | USB 2.0 OTG / USB-JTAG bridge
GPIO21 | In/Out | - | X | X | - | - GPIO21 | In/Out | - | X | X | - | -
@ -174,6 +174,10 @@ total:
that is at GPIO11 ... GPIO20. that is at GPIO11 ... GPIO20.
- GPIO3 is a strapping pin und shouldn't be used as ADC channel - GPIO3 is a strapping pin und shouldn't be used as ADC channel
## DAC Channels {#esp32_dac_channels_esp32s2}
ESP32 SoC supports 2 DAC lines at GPIO17 and GPIO18.
## I2C Interfaces {#esp32_i2c_interfaces_esp32s2} ## I2C Interfaces {#esp32_i2c_interfaces_esp32s2}
ESP32-S2 has two built-in I2C interfaces. ESP32-S2 has two built-in I2C interfaces.