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mariecurie · 2024-07-24

Hi, Im interfacing STW81200 with SPI without no success. I do have the following questions:What the SPI mode? Its not clear on the datasheet. It seems that CPOL = 1, and CPHA = 1.In either way, I have tested the communication with several modes and n...

mariecurie · 2024-07-30

During the last couple of days I implemented first the whole transfer that its given in section 7.17 of the data sheet with no success. After that, I started to work on some parts of the circuit that were in charge of providing the reference clock si...

mariecurie · 2024-07-25

> Are you following the power on sequence exactly?Sort of because Im missing some information that does not allow me to completely verify that the power sequence is correct.1. I measured this with an oscilloscope and all the inputs are receiving 5 V....

mariecurie · 2024-07-25

> The diagram in the datasheet implies that LE should be set high after 32 bits, each register access likely needs LE to go low, then high. I can see this on the datasheet. Thanks. However, this will be valid for the next request on accessing registe...

mariecurie · 2024-07-24

> "The first bit, CO is used for mode selection (0=Write Operation, 1=Read Operation)."This is correct. Im trying to follow the "example of register programming" indicated in 7.17 from datasheet. Write to ST9 = 0x48000000Read from ST11.Please see ste...

mariecurie · 2024-07-24

> I uploaded an image of the transactions with this configuration. I see that the pin is driven low. Forgot to attach the image.

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STW81200 does not answer on MISO line

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Re: STW81200 does not answer on MISO line

Re: STW81200 does not answer on MISO line