Part Number: LP55231 Other Parts Discussed in Thread: LP5009
Hi all,
We've been experiencing an issue with LP55231 chips, on at least 5% of boards now. In two instances, SCL has been found shorted to GND. In another instance, SDA and SCL were found…
Thank you for your reply.
According to your answer, the last pulse is not ACK but STOP condition, but after checking the data sheet and I2C specification, After the ACK there is a STOP condition and the STOP condition should only be generated from the…
Part Number: LP55231 Hi,
I have a battery powered low power application. during my device idle mode I get a current consumption of around 40uA. I'm running a test sequence where I:
Power On System -> (Wait 3 seconds -> Enable LED sequence with 2…
Part Number: LP55231SQEVM Other Parts Discussed in Thread: LP55231 Hi,
We are using two LP55231 to drive 4 RGB LEDs, each chip is driving two LEDs respectively.
Below is the configuration:
1) LP55231 is configured to use internal clock
2) Using Engine…
Part Number: LP55231 Hi all
My customer is working on a design with the LP55231SQX/NOPB and they have this question:
Is it ok to use 1uF 10V for the flying capacitors ?
This will help them reduce the BOM lines for their assembly.
The datasheet specifies…
Part Number: LP55231
Hello,
I am facing some issue in LP55231 with CC1352. With this board I can write sucessfully data write on LP55231, but led is not run. I can also read registers value.
I tryed with other controller and It's working fine.
can…
Part Number: LP55231 Hi Team,
I read the datasheet of LP55231. It only specifies the Maximum clock speed, 400 kHz, but not the minimum. Do you know the Minimum clock speed required for the I2C interface?
Best Regards, Tom
Hi,
I've seen your problem, and I have some questions for you:
1.In the Github link, I find there are 10 examples and I don't know which one is confusing you.
2.LP55231 has three independent program execution engines, I don't know if you can…
Part Number: LP55231 Hey
I'm writing some programs for the LP55231 engines to create the following effect:
That is, all the RED leds are constantly on and the green LEDs chase each other with LED N fading out as LED N+1 fades in.
The array below…
The default value of engine 2 start address is 0x10 , if you will map the leds you want to use on the start of engine 2, you need to check mux_map_start address.