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Hi everyone,
I need to control some LEDs (duration 10-50ms; Frequency 10-50Hz; Current 10-600uA; ) by using LED171596AWVM with TM4C123GXL. I already maximized the maxBri and the MasterBri with 0x1ff. So, the PWM should be 100%. The current output should only rely on the current value itself. However, I have some issue regarding ISET setup and some config. parameter.
1) I know how to set them but I don't know how parameter of the LED Driver, PWM and Sloper config, is reasonable to my project? (as fig,1)?
2) I can see the log in EVM software and I can select them (e.g. 10mA, 12.5, ..., 60mA) (as fig.2). But I don't know how to I2C write this ISET to initial peak current with a program?
Thank you in advance!
Hi Yale,
Thank you for concerning this issue! This board may be out of production.
I read more detail datasheet of the LED171596A chip. Basically, I figured out how to configure above the parameter. For the ISET initiation, although I still don't know how to change the resistor through the address and data in the rheostat unit, I solved it by an external resistor with rated value.
So, all the problem basically is solved.
Thank you, anyway!
Yunxiang
Cause I use an university account, I cannot reply to that question through this link on EN E2E.
Problem is basically solved now.
Thank you!
Yunxiang