which driver did you use?
I didn't see MT25QL SPI flash in menu config so I went ahead and wrote one!
Best regards,
Janardhan
________________________________
From: Tim Hardisty <timhardist...@gmail.com>
Sent: Thursday, December 28, 2023 19:15
To: dev@nuttx.apache.org <dev@nuttx.apache.org>
Subject: Re: LittleFS Implementation using MTD for NOR flash
I have only ever used NuttX "directly" with my apps running over it
rather than any other middleware or anything, so I can't answer that.
My board has been fitted with a MT25QL01GBBB8ESF, and has worked fine,
so your flash is most likely supported already?
On 28/12/2023 12:12, Janardhan Silwal wrote:
> Hi,
>
> I am using MT25QL, 1Gbit series flash memory.
>
> Thanks for the template.
> Would running in this format over the middleware running over nuttx also
> follow the same approach?
>
> Best Regards,
> Janardhan
> ________________________________
> From: Tim Hardisty<timhardist...@gmail.com>
> Sent: Thursday, December 28, 2023 17:31
> To:dev@nuttx.apache.org <dev@nuttx.apache.org>
> Subject: Re: LittleFS Implementation using MTD for NOR flash
>
> Hi,
>
> What flash are you using out of interest?
>
> But, the basic approach (in or called from your board bringup for
> example) is:
>
>
> spi_flash= sam_spibus_initialize(PORT); /* this call is arch dependent */
> if(!spi_flash)
> {
> /* Do something */
> }
> #ifdefined(CONFIG_MTD_M25P)
> mtd = m25p_initialize(spi_flash, MINOR);
> #elifdefined(CONFIG_MTD_GD25)
> mtd = gd25_initialize(spi_flash, MINOR);
> #elif defined(CONFIG_MTD_YOURFLASHTYPE)
> /* etc */
> #endif
> if(!mtd)
> {
> /* Do something */
> }
> #ifdefined(CONFIG_FS_LITTLEFS)
> /* Mount the LittleFS file system */
> ret = register_mtddriver("/dev/flash", mtd, 0755, NULL);
> if(ret < 0)
> {
> /* Do something */
> }
> ret = nx_mount("/dev/flash", "/mnt/flash", "littlefs", 0, "autoformat");
> if(ret < 0)
> {
> /* Do something */
> }
>
> That was a copy/paste/edit or my own code so please forgive any typo errors!
>
> On 28/12/2023 11:19, Janardhan Silwal wrote:
>> Hi community,
>>
>> I am trying to get littlefs running on a NOR flash memory using the MTD
>> driver, on a STM32F4 chip.
>>
>> I had some bottlenecks in the implementation as I am an out-and-out novice
>> when it comes to Nuttx.
>> I have written a custom driver for the flash, which is working with MTD, as
>> I couldn't find the exact driver for the flash installed on my system.
>>
>> Now I need some guidance on where to start for linking LittleFS to MTD and
>> the rest..
>>
>> Best Regards,
>> Janardhan Silwal
>>
