docs/esp32: Update esp32 docs based on IDF v5 changes.

Signed-off-by: Damien George <damien@micropython.org>
micropython · Jun 23, 2023 · 68e0e88 · 68e0e88
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diff --git a/docs/esp32/quickref.rst b/docs/esp32/quickref.rst
@@ -57,7 +57,6 @@ The :mod:`esp32` module::
 
     import esp32
 
-    esp32.hall_sensor()     # read the internal hall sensor
     esp32.raw_temperature() # read the internal temperature of the MCU, in Fahrenheit
     esp32.ULP()             # access to the Ultra-Low-Power Co-processor
 
@@ -137,19 +136,11 @@ The keyword arguments for the constructor defining the PHY type and interface ar
   or output. Suitable values are Pin.IN and Pin.OUT.
 - ref_clk=pin-object  # defines the Pin used for ref_clk.
 
-The options ref_clk_mode and ref_clk require at least esp-idf version 4.4. For
-earlier esp-idf versions, these parameters must be defined by kconfig board options.
-
 These are working configurations for LAN interfaces of popular boards::
 
     # Olimex ESP32-GATEWAY: power controlled by Pin(5)
     # Olimex ESP32 PoE and ESP32-PoE ISO: power controlled by Pin(12)
 
-    lan = network.LAN(mdc=machine.Pin(23), mdio=machine.Pin(18), power=machine.Pin(5),
-                      phy_type=network.PHY_LAN8720, phy_addr=0)
-
-    # or with dynamic ref_clk pin configuration
-
     lan = network.LAN(mdc=machine.Pin(23), mdio=machine.Pin(18), power=machine.Pin(5), 
                       phy_type=network.PHY_LAN8720, phy_addr=0,
                       ref_clk=machine.Pin(17), ref_clk_mode=machine.Pin.OUT)
@@ -164,16 +155,6 @@ These are working configurations for LAN interfaces of popular boards::
     lan = network.LAN(id=0, mdc=Pin(23), mdio=Pin(18), power=Pin(5),
                       phy_type=network.PHY_IP101, phy_addr=1)
 
-A suitable definition of the PHY interface in a sdkconfig.board file is::
-
-    CONFIG_ETH_PHY_INTERFACE_RMII=y
-    CONFIG_ETH_RMII_CLK_OUTPUT=y
-    CONFIG_ETH_RMII_CLK_OUT_GPIO=17
-    CONFIG_LWIP_LOCAL_HOSTNAME="ESP32_POE"
-
-The value assigned to CONFIG_ETH_RMII_CLK_OUT_GPIO may vary depending on the
-board's wiring.
-
 Delay and timing
 ----------------
 

diff --git a/docs/library/esp32.rst b/docs/library/esp32.rst
@@ -44,10 +44,6 @@ Functions
 
     Read the raw value of the internal temperature sensor, returning an integer.
 
-.. function:: hall_sensor()
-
-    Read the raw value of the internal Hall sensor, returning an integer.
-
 .. function:: idf_heap_info(capabilities)
 
     Returns information about the ESP-IDF heap memory regions. One of them contains

diff --git a/docs/library/machine.WDT.rst b/docs/library/machine.WDT.rst
@@ -25,9 +25,8 @@ Constructors
    Create a WDT object and start it. The timeout must be given in milliseconds.
    Once it is running the timeout cannot be changed and the WDT cannot be stopped either.
 
-   Notes: On the esp32 the minimum timeout is 1 second. On the esp8266 a timeout
-   cannot be specified, it is determined by the underlying system. On rp2040 devices,
-   the maximum timeout is 8388 ms.
+   Notes: On the esp8266 a timeout cannot be specified, it is determined by the underlying system.
+   On rp2040 devices, the maximum timeout is 8388 ms.
 
 Methods
 -------