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DSche · 2019-09-29

DSche · 2019-05-18

I have a design that uses the STGAP1AS. 2 of the drivers are connected with a spi daisy chain. I am able to send read register commands and get expected default values, however i have been unable to write configuration values using the recommended co...

DSche · 2019-09-29

Several times during low voltage testing driving IGBT modules 1 to 3 of the drivers report REGERRR and REGERRL errors in status 2 and 3 registers. These errors are permanent and the chips need to be removed and replaced. I have no idea what is causin...

DSche · 2019-05-24

wring the configuration registers in a daisy chain configuration requires that the command/crc values be sent for all devices followed by an SS toggle. Then the matching data/crc values are sent followed by another SS toggle

DSche · 2019-05-22

After re-reading this, i think there may be an issue with the way you are using the ss pin. the datasheet says that the driver will ignore spi data that is not written in multiples of 16 bits.. maybe try writing the command and then the crc followed...

DSche · 2019-05-22

Quick look, code looks ok, Have you scoped the clock, si, so lines?My design has a number of the stgap1as drivers daisychained *** i have been able to read the expected default values from the cfg and status registers, but have not been able to writ...

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I am using 6 stgap1as driver chips in an AC motor inverter project. The design is based on the STGAP1AS eval board.

I am unable to write STGAP1AS configuration registers

Re: I am using 6 stgap1as driver chips in an AC motor inverter project. The design is based on the STGAP1AS eval board.

Re: I am unable to write STGAP1AS configuration registers

Re: Hi all, I am unable to read and write Commands through SPI to STGAP1AS motor driver IC. I am using tms320f28377s processor to read and write data to STGAP1AS.

Re: Hi all, I am unable to read and write Commands through SPI to STGAP1AS motor driver IC. I am using tms320f28377s processor to read and write data to STGAP1AS.