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TLC6C5712-Q1: Question for start up sequence

Part Number: TLC6C5712-Q1

Hi team,

TLC6C5712-Q1 App. note recommeds below start up sequence. But, a customer wants to simplify the sequence with the condition of not using PWM/error

handling/diagnostic features. They will mainly turn on and off each LED simply. In this case, can you let me know the simplified sequence with only the necessary procedures?

1. Power up the system.
2. Set all fault mask registers value HIGH to mask all faults.
3. Write the [FORCE_ERR] register to check the ERR feedback circuit connection.
4. Set the corresponding fault mask registers bit LOW to make the required faults report to the ERR pin.
(Mask the PWMx fault if it is not used in the application.)
5. Clear the [RESET_POR] POR flag.
6. Reset the fault status [RESET_STATUS] registers.
7. Read the [READ_STATUS] registers or ERR pin state confirm fault information, if a fault exists, then
enter the fault handling routine.
8. Set the [ADJ_DIAG_START] bit HIGH to start the adjacent pin short detection.
9. Read the adjacent pin short-fault register to confirm the status of the adjacent pin short fault, if a fault
exists, enter the fault handling routine.
10. Set the output current by writing the [WRITE_CORRx] registers.
11. Verify the current dot correction by reading the [READ_CORRx] registers.
12. Configure the PWM mapping by writing the [WRITE_MAPx] registers.
13. Verify the PWM mapping by reading the [READ_MAPx] registers.
14. Write the [LOCK_MAP] command to lock the PWM mapping settings if required.
15. Configure the PWM input signal for LED fault diagnostics.
16. Turn on or turn off output channels by writing the [WRITE_CH_ON_MASKx] registers.
17. Verify channel on or channel off states by reading the [READ_CH_ON_MASKx] registers.
18. Adjust the PWM duty cycle for dimming if required.
19. Enter the main routine.

 

Thanks,

Sam Lee