Other Parts Discussed in Thread: TPS65982
I'm using the latest version (2.3 - July 2016) of the TPS6598x Host Interface tool. I'm connected through an Aardvark to my TPS65982.
Under the "PP Switch for PDO#" field for any of the PDOs is a list of four paths:
PP_5V internal
PP_5V internal
PP_HV internal
PP_HVE external.
However, if you select the 2nd, you get PP_HV, if you select the 3rd you get PP_5V. I have tested this with voltages and this is how it works. The Appl Customization tool has some misleading info in the Switch Source pulldowns for setting up this field, it shows the PP_5V0 choices as (00b) and (01b). In reality they are really (00b and 10b). The Appl. Customization tool correctly sets up the paths during image creation (I think), but the 01/10 and the order is incorrect. If you look at the slvuan1 HostTechRefManual that describes these bits in the register it says in Table 3-16, the 0x32 TX Source... register that Byte 3 has the following bits:
0 - controls PP_5V0 on/off. If 0, then PP_5V0 is the PDO0, if 1 then PP_EXT is PDO0.
1 - IFF bit 0 = 1, then this selects between PP_HV and PP_EXT.
So, 00 = PP_5V0, 10= PP_5V0, 01 = PP_HV, 11 = PP_EXT.
This is how the TPS65982 operates, so the AppCustom Tool is misleading and the Host Interface tool labels are incorrect, then 2nd (presumably 01) says PP_5V but really selects HV and the 3rd (presumably 02) says PP_HV but really selects PP_5V.
Warren
