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Diffstat (limited to 'docs/esp32/quickref.rst')
| -rw-r--r-- | docs/esp32/quickref.rst | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/docs/esp32/quickref.rst b/docs/esp32/quickref.rst index c7d4a098e5..c394414a76 100644 --- a/docs/esp32/quickref.rst +++ b/docs/esp32/quickref.rst @@ -284,7 +284,8 @@ with a timer ID of 0, 0 and 1, or from 0 to 3 (inclusive):: tim1 = Timer(1) tim1.init(period=2000, mode=Timer.PERIODIC, callback=lambda t:print(1)) -The period is in milliseconds. +The period is in milliseconds. When using UART.IRQ_RXIDLE, timer 0 is needed for +the IRQ_RXIDLE mechanism and must not be used otherwise. Virtual timers are not currently supported on this port. @@ -543,14 +544,27 @@ Legacy methods: Equivalent to ``ADC.block().init(bits=bits)``. +The only chip that can switch resolution to a lower one is the normal esp32. +The C2 & S3 are stuck at 12 bits, while the S2 is at 13 bits. + For compatibility, the ``ADC`` object also provides constants matching the -supported ADC resolutions: +supported ADC resolutions, per chip: +ESP32: - ``ADC.WIDTH_9BIT`` = 9 - ``ADC.WIDTH_10BIT`` = 10 - ``ADC.WIDTH_11BIT`` = 11 - ``ADC.WIDTH_12BIT`` = 12 +ESP32 C3 & S3: + - ``ADC.WIDTH_12BIT`` = 12 + +ESP32 S2: + - ``ADC.WIDTH_13BIT`` = 13 + +.. method:: ADC.deinit() + + Provided to deinit the adc driver. Software SPI bus ---------------- |