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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, I will transfer these issues to the relevant engineer. Thanks for your patience.
Could you pls specify the part number of this LED driver?
We didn't see this EVM before.
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