topic Re: FlexSPI port B1 configuration in i.MX RT Crossover MCUs

FlexSPI port B1 configuration

l_volkmann — Tue, 14 Jan 2020 15:24:57 GMT

Hello,

our device consist of iMX 1050 RT connected SPI NOR Flash via FlexSPI port A1 and connected via FlexSPI port B1.
Data strobe is configured as internal loopback for both.
If I try to execute FlexSPI commands on port B1, I see no signal activity on port B1 but on port A1.
The FlexSPI init sequence is as follows:

flexspi_device_config_t deviceconfigNor = {
    .flexspiRootClk = 120000000,
    .flashSize = NOR_FLASH_SIZE,
    .CSIntervalUnit = kFLEXSPI_CsIntervalUnit1SckCycle,
    .CSInterval = 2,
    .CSHoldTime = 3,
    .CSSetupTime = 3,
    .dataValidTime = 0,
    .columnspace = 0,
    .enableWordAddress = 0,
    .AWRSeqIndex = 0,
    .AWRSeqNumber = 0,
    .ARDSeqIndex = NOR_CMD_LUT_SEQ_IDX_READ_FAST_QUAD,
    .ARDSeqNumber = 1,
    .AHBWriteWaitUnit = kFLEXSPI_AhbWriteWaitUnit2AhbCycle,
    .AHBWriteWaitInterval = 0,
};

flexspi_device_config_t deviceconfigNand = {
    .flexspiRootClk = 120000000,
    .flashSize = NAND_FLASH_SIZE,
    .CSIntervalUnit = kFLEXSPI_CsIntervalUnit1SckCycle,
    .CSInterval = 2,
    .CSHoldTime = 3,
    .CSSetupTime = 3,
    .dataValidTime = 0,
    .columnspace = 0,
    .enableWordAddress = 0,
    .AWRSeqIndex = 0,
    .AWRSeqNumber = 0,
    .ARDSeqIndex = 0,
    .ARDSeqNumber = 0,
    .AHBWriteWaitUnit = kFLEXSPI_AhbWriteWaitUnit2AhbCycle,
    .AHBWriteWaitInterval = 0,
};

flexspi_config_t config;
FLEXSPI_GetDefaultConfig(&config);

FLEXSPI_Init(EXAMPLE_FLEXSPI, &config);

FLEXSPI_SetFlashConfig(EXAMPLE_FLEXSPI, &deviceconfigNor, kFLEXSPI_PortA1);
FLEXSPI_SetFlashConfig(EXAMPLE_FLEXSPI, &deviceconfigNand, kFLEXSPI_PortB1);

What shall I do to get port B1 working ?

Thanks in advance.
Lutz

Re: FlexSPI port B1 configuration

l_volkmann — Wed, 15 Jan 2020 08:57:48 GMT

Hi,

I also added :
FLEXSPI_EnableIPParallelMode(EXAMPLE_FLEXSPI,true);
FLEXSPI_EnableAHBParallelMode(EXAMPLE_FLEXSPI,true);
but nothing changes.
No one any idea ?

Lutz

Re: FlexSPI port B1 configuration

kerryzhou — Wed, 15 Jan 2020 09:37:40 GMT

HiLutz Volkmann ，

Do you download the code the RAM,

Before you do the FlexSPI port B1 operation, do you have configure the related pins as the flexSPI function?

Please check the pin_mux.c.

Any updated information, please kindly let me know.

Have a great day,
Kerry

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Re: FlexSPI port B1 configuration

l_volkmann — Wed, 15 Jan 2020 10:07:56 GMT

Hi Kerry,
to do some trials on our custom board I use the flexspi_nor_polling transfer example.
The code is executed from RAM and port B pins are configured as you can see below.
I'm now wondering if in the flexspi driver code function FLEXSPI_TransferBlocking the IPAREN bit should be set ?

    /* Configure sequence ID. */
    configValue |= FLEXSPI_IPCR1_ISEQID(xfer->seqIndex) | FLEXSPI_IPCR1_ISEQNUM(xfer->SeqNumber - 1);
    base->IPCR1 = configValue;

Regards
Lutz

Re: FlexSPI port B1 configuration

l_volkmann — Wed, 15 Jan 2020 11:35:04 GMT

Hi Kerry,

now it works my mistake was that I took the wrong device address.

Best Regards

Lutz

Re: FlexSPI port B1 configuration

kerryzhou — Thu, 16 Jan 2020 02:44:41 GMT

Hi Lutz Volkmann,

Thanks let me know that it works and the root problem on your side.

If you still have questions about it, please kindly let me know.

If your question is solved, please help me to mark the correct answer, just to close this question, thank you!

Have a great day,
Kerry

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Re: FlexSPI port B1 configuration

dylan_yu — Fri, 21 Aug 2020 03:40:34 GMT

Hi,Lutz

which device address have you modified? I think I have the same problem , but I don't know where to modify. Could you show me?

Best Regards

Dylan

Re: FlexSPI port B1 configuration

kerryzhou — Mon, 24 Aug 2020 02:42:37 GMT

Hi Dylan Yu,

If you have any question, you can create your own question post, then we will help you in your post directly.

Wish it helps you!

Kerry

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