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Merge branch 'peterhinch:master' into master

pull/24/head
Abel Deuring 2024-02-03 20:14:06 +01:00 zatwierdzone przez GitHub
rodzic a7f3dbdaba 51f7a136a7
commit 640af0f1bf
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5
eeprom/spi/SPI.md
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@ -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.:

6
eeprom/spi/eep_spi.py
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@ -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