最近在调bq34z100g1碰到无法修改GG里的参数(所有参数都无法修改)这个问题,使用软件为BQStudio 1.3.52,EV2300,可以正常读,修改Data Memory里的某个数据时,输入修改后数值回车后,在BQ软件左下角出现报错提示“A read of data written failed comparion”,出现这个情况是bq34z100g1内部处于某种模式,把写操作这个功能给禁制了?还是哪里数据配置不正常?或是芯片本身坏了?
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建议用示波器看一下REGIN pin的电压是否正常,尤其是在试图写data flash的时候。
Data flash can only be updated if Voltage() ≥ Flash Update OK Voltage. Flash programming current can cause
an increase in LDO dropout. The value of Flash Update OK Voltage should be selected such that the device VCC
voltage does not fall below its minimum of 2.4 V during Flash write operations. The default value of 2800 mV is
appropriate; however, for more information, refer to STEP 3: Design and Configure the Voltage Divider.