topic Re: RT1050 QSPI Read data error in i.MX RT Crossover MCUs

RT1050 QSPI Read data error

dingzhongkui — Sun, 17 Feb 2019 06:14:28 GMT

Hello：

Sometimes QSPI read data is error ,the speed is 120Mhz with the mode Quad SPI. And it is more easier to read data error with the high temperature ，Please Help me。

Re: RT1050 QSPI Read data error

kerryzhou — Wed, 20 Feb 2019 07:17:10 GMT

Hi 钟奎丁,

Could you tell me what the board you are using when you have the QSPI read errors?

I suggest try NXP official MIMXRT1050-EVKB on your side, whether the official board also have the similar problem on your side or not?

Have a great day,
Kerry

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Re: RT1050 QSPI Read data error

dimitarmarinov — Tue, 26 Feb 2019 15:08:46 GMT

We had a similar problem with our QSPI flash. We had to configure the maximum drive strength for the QSPI pins to R0/7 (Maximum). We also reduced the clock from 120 MHz to 100 MHz.

Re: RT1050 QSPI Read data error

kerryzhou — Wed, 27 Feb 2019 03:21:07 GMT

What's the board you are using? Do you try the official board and the official SDK code on your side, whether it still have problems or not? If yes, please give me more details to reproduce your problem.

Have a great day,
Kerry

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Re: RT1050 QSPI Read data error

dimitarmarinov — Wed, 27 Feb 2019 11:51:28 GMT

The board is our custom board. The flash is W25Q32JV. Yes, we tried with the Flexspi_nor_polling_transfer example. Now, after the mentioned modifications, QSPI flash works fine.

Re: RT1050 QSPI Read data error

dingzhongkui — Thu, 28 Feb 2019 01:11:11 GMT

It's a new design board for me，The flash is IS25lP128. Whether the Flexspi_nor_polling_transfer example have a link？

it has not a try on NXP official MIMXRT1050-EVKB now.

Re: RT1050 QSPI Read data error

kerryzhou — Fri, 01 Mar 2019 10:09:13 GMT

Hi Customer，

From application note AN12108, your QSPI flash is not supported directly in the list:

So, you can try the QSPI in the list, when it work, it means your hardware do't have problem, then you can try to modify your own qspi flash.

Have a great day,
Kerry

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