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sd package: sdcard package redesign (#639)

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* begin adding sd.Card refactor

* CSD logic shared between V1 and V2

* failing CRC7 implementation

* passing tests

* rename commands

* implement waitToken

* add status string method

* no crc errors in status; closing the gap?

* add config baud increase docs

* remove some of API

* still working on consolidation of init

* fully comply

* add prints

* remove prints

* remove unused API

* add BlockDevice

* implement Card interface

* rename EraseBlocks to EraseSectors

* add blkIdxer

* working BlockDevice

* delete rustref.go; add readme to sd

* add sd/README.md

* sd: backtrack on EraseSectors, stick to block nomenclature

* remove remnants of sector size

* fix examples/sd/main.go

* add documentation, smoke test and fix a couple bugs
This commit is contained in:
Pat Whittingslow
2026-08-21 07:48:11 -03:00
committed by GitHub
parent dc6edbb694
commit e08205477c
9 changed files with 2008 additions and 0 deletions
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sd/README.md
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## `sd` package
File map:
* `blockdevice.go`: Contains logic for creating an `io.WriterAt` and `io.ReaderAt` with the `sd.BlockDevice` concrete type
from the `sd.Card` interface which is intrinsically a blocked reader and writer.
* `spicard.go`: Contains the `sd.SpiCard` driver for controlling an SD card over SPI using the most commonly available circuit boards.
* `responses.go`: Contains a currently unused SD response implementations as per the latest specification.
* `definitions.go`: Contains SD Card specification definitions such as the CSD and CID types as well as encoding/decoding logic, as well as CRC logic.