TMS320F28027F: HAL background functions

Jack Tan80

Part Number: TMS320F28027F
Other Parts Discussed in Thread: MOTORWARE

Dear Champs,

Below flow chart copied from motorware_hal_tutorial manual, I see that the adcbias is always get updated and PWM is always enabled in CTRL_State_OnLine.

1. My understanding is that the adcbias should be relates with the current amplifier offset, so this value won't change, why does the adcbias be get updated every time in online state?

2.If PWM tripped by TZ fault, but the pwm are always enable in online state, it will cause the MOSET/IPM damaged, how to explain this?

over 7 years ago

0 Sean Bigley over 7 years ago

TI__Genius 17175 points

Jack

I think your point of confusion here is that this state branch does not occur during CTRL_State_OnLine, but during the transition to CTRL_State_OnLine. You can see this in the background task, where this code is only called when the flag_ctrlStateChanged is set. This flag is only set on state change and cleared once run

Sean

0 Jack Tan80 over 7 years ago in reply to Sean Bigley

Mastermind 7120 points

Sean,

Thanks. I see the condition that flag_ctrlStateChanged should be set in code.

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TMS320F28027F: HAL background functions