Hi
I can't confirm whether TPS65987D loads firmware from external SPI FLASH and works normally.
So I read the BootFlags (0x2D) register:
REG BOOTFLAGS << HEX [ 0C 18 00 00 00 A2 06 00 00 30 00 00 ]
[Boot Flags]
PatchHeaderErr : 0
PatchDownloadErr : 0
DeadBatteryFlag : 1
SpiFlashPresent : 1
CustomerOtpInvalid : 0
Region0 : 0
Region0Invalid : 0
Region0FlashErr : 0
Region0CrcFail : 1
Region1 : 0
Region1Invalid : 0
Region1FlashErr : 0
Region1CrcFail : 0
PP1Switch : 0
PP1Switch : 0
PP3Switch : 0
PP4Switch : 0
Region0 = 0 and Region1 = 0 indicates that device didn't attempt Region0 and Region1 ,
which implicitly means that the content at Region0 Region1 is inactive.
Does this mean the firmware is not functioning properly?
And I try to read (0x0F) which matches the vendor provided version (F807.12.76)
The document description 0x0F register is only 4 bytes, but only the result obtained by reading 5 bytes can be consistent with the firmware version given by the supplier.
REG VERSION << HEX [ 04 76 12 07 F8 ]
So the first byte 0x04 has no effect?
Best regards.
Peter