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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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回答
可能的原因和相应的解决方法如下:
可能的原因
1) 微控制器中的振荡设置不正确(无振荡器、振荡频率不合适等)
2) 微控制器的供电电压不合适。
3)微控制器的工作模式设置不正确(TEST引脚、AM引脚等)。
4)微控制器未正确编程。
解决方法
1),2)使用每个产品的数据表中电气特性部分规定的正确振荡设置和供电电压。
3)检查印刷电路板上的相关设置。
4)对微控制器中的程序进行验证测试
(NO.ED9900901 2011/10/25)