ARM:
1, initial power core configuration error voltage, higher than the maximum voltage of about 0.3V, the chip does not burn;
2, is configured to start the SD card, designed for onboard TF card slot, no power on the print, the measurement signal CLK SD card with a stable clock, QSPI configured to automatically start, no waveform signal CLK SD card, proved correct configuration, the chip PLL is working properly;
Measuring CMD, data0, no waveform. The investigation is not to be read TF card normal reasons.
XC7Z045:
1, DONE pull-down signal, the weak pull-up configuration on the internal capacity, the internal state machine normally not jump, the error message;
2, ARM core newspaper "DEVICEEN is 0" error until the investigation and the reasons.