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- protocol.h: CoP/Encoder/Resistance/Spotter/Heartbeat 帧定义, GML670 50kg ADC→kg 标定参数 - ads1256: SPI 命令模式驱动,BUFEN=1 解决高阻抗负载误差, 3750 SPS 平衡精度与采样率,SELFCAL + 寄存器回读校验 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>