Merge branch 'peterhinch:master' into master

Author: adeuring

eeprom/spi/SPI.md

@@ -22,9 +22,12 @@ The driver has the following attributes:
 
 As of Jan 2024 this driver has been updated to fix a bug where the device page
 size was less than 256. A further aim was to make the driver more generic, with
-a better chance of working with other SPI EEPROM chips. The constructor has
+a high chance of working with other SPI EEPROM chips. The constructor has
 additional optional args to support this.
 
+On Pyboard D soft SPI should be used pending resolution of
+[this PR](https://github.com/micropython/micropython/pull/13549).
+
 Code samples assume one or more Microchip devices. If using the STM chip the
 SPI baudrate should be 5MHz and the chip size must be specified to the `EEPROM`
 constructor, e.g.:

eeprom/spi/eep_spi.py

@@ -24,16 +24,16 @@ def get_eep(stm):
     if stm:
         if ESP8266:
             spi = SoftSPI(baudrate=5_000_000, sck=Pin(4), miso=Pin(0), mosi=Pin(2))
-        else:  # Pyboard. 1.22.1 hard SPI seems to have a read bug
+        else:  # Pyboard. See https://github.com/micropython/micropython/pull/13549
             # spi = SPI(2, baudrate=5_000_000)
-            spi = SoftSPI(baudrate=5_000_000, sck=Pin('Y6'), miso=Pin('Y7'), mosi=Pin('Y8'))
+            spi = SoftSPI(baudrate=5_000_000, sck=Pin("Y6"), miso=Pin("Y7"), mosi=Pin("Y8"))
         eep = EEPROM(spi, cspins, 256)
     else:
         if ESP8266:
             spi = SoftSPI(baudrate=20_000_000, sck=Pin(4), miso=Pin(0), mosi=Pin(2))
         else:
             # spi = SPI(2, baudrate=20_000_000)
-            spi = SoftSPI(baudrate=20_000_000, sck=Pin('Y6'), miso=Pin('Y7'), mosi=Pin('Y8'))
+            spi = SoftSPI(baudrate=20_000_000, sck=Pin("Y6"), miso=Pin("Y7"), mosi=Pin("Y8"))
         eep = EEPROM(spi, cspins, 128)
     print("Instantiated EEPROM")
     return eep