Other Parts Discussed in Thread: LAUNCHXL-F28027F, DRV8305, LAUNCHXL-F28069M
Hello Sir or Madam,
I have a BOOSTXL-DRV8305EVM. When I connect it with 12 VDC power. the D1 Red LED, nFAULT is on. I read BOOSTXL-DRV8305EVM User’s Guide (SLVUAI8A). It said:
Example: LAUNCHXL-F28027F
For the LAUNCHXL-F28027F LaunchPad, remove the JP1 (3.3 V), JP2 (GND), and JP3 (5 V) jumpers to isolate the two power supply domains (MCU and Emulator). The S1 switch should be set to the ON-ON-ON position to allow for a JTAG debug connection. The S4 switch should be moved to the OFF position to allow for the nFAULT pin from the DRV8305 to report correctly.
My questions are:
1. This document only mentions for the LAUNCHXL-F28027F LaunchPad. If my LaunchPad is LAUNCHXL-F28069M, should I do the same thing step by step to remove the JP1, JP2, and JP3 jumpers?
2. On the LAUNCHXL-F28069M, it doesn't exist S4 switch. How can I move the S4 switch to the OFF position to allow for the nFAULT pin from the DRV8305 to report correctly.
The document also said:
Enable the power supply. A fault may appear on the nFAULT LED. This is normal and should be cleared when the status registers are read or EN_GATE is taken HIGH.
3. What tool can I read the status registers? How can I clear this status register and set EN_GATE from HIGH to LOW?
Sincerely,
Hao
