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When debugging PSoC6 BLE, I encountered abnormal voltage between LDO and BUCK. The specific phenomena are as follows:
Buck mode Testing Data:
1. The normal voltage of VDD_NS and VDDD is 3.30v;
2.VDCDC is 1.94v;
3. DVDD is 1.58 V
4. VCCBUCK1 is 1.69 V
5.VDDR1, VDDR2 and VDDR3 are 1.93v
6. VDDR_HVL is 2.30 V.
7. VCCD is 1.69 V
LDO mode Testing Data:
1. The normal voltage of VDD_NS and VDDD is 3.30v;
2.VDCDC is 1.99v;
3. DVDD is 1.58 V
4. VCCBUCK1 is 1.63 V
5.VDDR1, VDDR2 and VDDR3 are 1.83v
6. VDDR_HVL is 2.28 V.
7. VCCD is 1.66 V
- The hardware circuit is as follows:
The software configuration is as followsNote: the code works well in the development version, but the MCU package is switched.)
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The schematic looks fine. I'd like to check the code running state on your side.
How many boards tested, and this abnormal phemonen is a cretain case?
If you see the code get stuck at a certain place on this platform with abnormal power voltage, or runs finely? If the crystals get oscillated on your platform?
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1. Several boards have been tested, and the phenomenon is the same.
2. Other functions of the board are normal
3. The code is normally tested in the development version cy8ckit-062-ble, but the MCU model is changed.
4. Oscillated normal boot
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Have you get any progress over this issue?