TI中文支持网TMS320F28377DZWT不外扩Flash,DSP上的R11,R12电源引脚可悬空，还是必须要接3.3V电源？
mangui zhang：
没看到手册里有讲 不确定怎么处理 建议还是接上
TMS320F28377DZWT不外扩Flash,DSP上的R11,R12电源引脚可悬空，还是必须要接3.3V电源？
user5037958：必须接到3.3V，避免悬空后引脚电平不确定
TMS320F28377DZWT不外扩Flash,DSP上的R11,R12电源引脚可悬空，还是必须要接3.3V电源？
Seven Han：5.8.1 Power Sequencing
An external power supply must be used to supply 3.3 V to VDDIO, VDD3VFL, VDDOSC, and VDDA and to
provide 1.2 V to VDD. The internal VREG is not supported; therefore, the VREGENZ pin must be tied high
to 3.3 V. The supplies should ramp to full rail within 10 ms. Table 5-3 shows the supply ramp rate.
