pico-epaper/sdcard_test.py

39 lines
937 B
Python

import machine
import sdcard
import uos
# Assign chip select (CS) pin (and start it high)
cs = machine.Pin(17, machine.Pin.OUT)
# Intialize SPI peripheral (start with 1 MHz)
spi = machine.SPI(0,
baudrate=1000000,
polarity=0,
phase=0,
bits=8,
firstbit=machine.SPI.MSB,
sck=machine.Pin(18),
mosi=machine.Pin(19),
miso=machine.Pin(16))
# Initialize SD card
sd = sdcard.SDCard(spi, cs)
sd_path = "/sd"
# Mount filesystem
vfs = uos.VfsFat(sd)
uos.mount(vfs, sd_path)
# Create a file and write something to it
with open(sd_path + "/test01.txt", "w") as file:
file.write("Hello, SD World!\r\n")
file.write("This is a test\r\n")
# Open the file we just created and read from it
with open(sd_path + "/test01.txt", "r") as file:
data = file.read()
print(data)
uos.mount(sd_path)