BQ76920上电,Boot-UP后,所有寄存器都能读,但试着配置不成功,写CC-Cfg、SysCtrl1失败。请问各寄存器的读写有顺序要求吗?
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BQ76920上电,Boot-UP后,所有寄存器都能读,但试着配置不成功,写CC-Cfg、SysCtrl1失败。请问各寄存器的读写有顺序要求吗?
CC-Cfg必须是0x19,不能改。
SysCtrl1的LOAD_PRESENT是只读,不能写。
问题是CC-Cfg读出来是0x00,写0x19后再读,仍是0x00。