https://github.com/MarksBench/mb_23LC1024

Very simple MicroPython module to use a Microchip 23LC1024 SPI SRAM with a Raspberry Pi Pico (RP2040)
https://github.com/MarksBench/mb_23LC1024

Last synced: about 2 months ago
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Very simple MicroPython module to use a Microchip 23LC1024 SPI SRAM with a Raspberry Pi Pico (RP2040)

• Host: GitHub
• URL: https://github.com/MarksBench/mb_23LC1024
• Owner: MarksBench
• License: mit
• Created: 2021-05-07T05:07:47.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-06-04T06:56:08.000Z (over 3 years ago)
• Last Synced: 2024-04-22T13:31:29.406Z (9 months ago)
• Language: Python
• Homepage:
• Size: 24.4 KB
• Stars: 1
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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• awesome-micropython - mb_23LC1024 - Very simple MicroPython module to use a Microchip 23LC1024 SPI SRAM with a Raspberry Pi Pico (RP2040). (Libraries / Storage)

README

        
# mb_23LC1024

Very simple MicroPython module to use a Microchip 23LC1024 SPI SRAM with a Raspberry Pi Pico (RP2040)

This module is intended to make using the 23LC1024 as simple as possible. It only accepts an address (range 0-131071) and a value (range 0-255).

There are probably much better ways to do this but who knows, someone might find it useful.

Author: [email protected]

Version: 0.1, 2021-05-07

**NOTE: There is no guarantee that this software will work in the way you expect (or at all).

**Use at your own risk.

Prerequisites:

- RP2040 silicon (tested with Raspberry Pi Pico)

- MicroPython v1.15 on 2021-04-18; Raspberry Pi Pico with RP2040

- 23LC1024 connected to hardware SPI port0 or port1 pins

- Dedicated /CS pin (can be any GP pin that's not already being used for SPI). Do not tie /CS to

  GND - the 23LC1024 requires state changes on /CS to function properly.

Usage:

- from machine import Pin, SPI

- import utime

- import mb_23LC1024

- Set up SPI using a hardware SPI port 0 or 1. Polarity and phase are both 0.

- specify /CS pin (can be any GP pin that's not already being used for SPI):

  cs = GP#

- Create constructor:

  thisMemoryChipDeviceName = mb_23LC1024.mb_23LC1024(spi, cs)

- To write a single byte to an address:

  thisMemoryChipDeviceName.write_byte(address, value)

- To read a single byte from an address:

  thisMemoryChipDeviceName.read_byte(address)

- See mb_23LC1024_example.py

For more information, consult the Raspberry Pi Pico MicroPython SDK documentation at:

  https://datasheets.raspberrypi.org/pico/raspberry-pi-pico-python-sdk.pdf

  

  and the Microchip 23LC1024 datasheet at:

  http://ww1.microchip.com/downloads/en/DeviceDoc/20005142C.pdf