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Part Number: MSP432P401R
求助各位工程师:
单片机芯片和仿真器芯片上电后1到2s就会迅速升温,USB接口处温度也十分高,程序能正常运转但整个板子就会非常烫,甚至直接烧坏芯片。请问这具体是什么原因?谢谢。
整个板子就会非常烫
是其中某一芯片发烫?抱歉,不是硬件方面的专家,但您可以看一下E2E上的相关讨论
https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/490273/msp432-overheating-or-is-this-normal
若是可以的话,也请详细说明信息后附上您的原理图,我去咨询下相关的硬件专家
Header J6 is present on the board to supply external power directly. It is important to comply with the device voltage operation specifications when supplying external power. The MSP432P401R has an operating range of 1.62 V to 3.7 V.
J6的话,是3.3V的
Figure 10. MSP‑EXP432P401R Power Block Diagram
请记住,MSP432P4 的电压范围为 1.62 至 3.7V。但理论上您可以使用5V,请尝试下面的操作:
1. 使用 5V 接头 (J7) 连接 5V 外部电源。
2. 移除 J101 上除 GND、3V3 和 5V 之外的所有跳线。