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2054174_ja-JP
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2054174_ja-JP
2054174_ja-JP
MM9Z1I638を使用してセーフモードを開く方法について質問があります。マニュアルを読んで、FSECレジスタを使用してセーフモードを開くことを学びましたが、このレジスタは直接書き込みをサポートしていないようで、FLASHプログラミングで書き込む必要があります。書き込まれるアドレス セグメントは P_FLASH ブロックの 0xFF_FE0F バイトで、
P_FLASHは512バイトです。セクタの消去、セクタの検証、セクタの書き込みのプロセスに従ってバイトを書き込んだのですが、セクタを消去するたびにソフトウェアが不正な場所に走ってしまうことがわかりました。確認した後、このセクターに保存されているすべての情報が加算であることがわかりました
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