Metapac migration#3
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flash-algo-v3 references set_bter/set_btpg which were added to ch32-data in 62145f5; the previously pinned 9b0d5c9 lacks them, breaking the v3 and render-YAMLs jobs.
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Rewrites this repo on top of ch32-metapac; replaces the legacy Keil/cargo-flash setup with Rust crates that build directly off the IP-version metadata.
Highlights
(flash IP version, CPU arch)pair underalgos/; each emits three bins (usr/sys/ob) for the writable regions. VND (factory ESIG) is read-only and skipped.xtaskbuilds every algo crate, extracts each ELF into aRawFlashAlgorithm, and emits one probe-rs target YAML per family togenerated/.ChipDetectionMethod::WchLink; V2/V3_ram_codesplits resolve viaObRefinementoverOB.USERbits 5-7.ch32-datacommit.Supported chips
algos/v0flash_v0riscv32ec-unknown-none-elfalgos/v00xflash_v00xriscv32ec_zmmul-unknown-none-elfalgos/v1flash_v1riscv32imac-unknown-none-elfalgos/f1flash_v1thumbv7m-none-eabialgos/v3flash_v3riscv32imac-unknown-none-elfalgos/x0flash_x0riscv32imac-unknown-none-elfalgos/l1flash_l1riscv32imac-unknown-none-elfalgos/h4flash_h4riscv32imac-unknown-none-elf126 target variants across 8 family YAMLs.