Code size?
> On 28 Dec 2023, at 17:11, Bernd Walter <ti...@cicely7.cicely.de> wrote:
>
> On Thu, Dec 28, 2023 at 04:46:08PM +0000, Janardhan Silwal wrote:
>> Oh!!
>> So that is the one you used.
>> I did see that on the menu config, but wasn't sure if it was the one. and I
>> was halfway through completing the driver when I noticed that option in menu
>> config anyway, so I went ahead and completed the driver.
>> Anyway it is working, so no worries there.
>> Thanks though.
>
> I really wonder why the are so many *25 NOR-flash drivers to begin with.
> Aren't they supposed to be similar and autoprobing?
>
>> ________________________________
>> From: Tim Hardisty <timhardist...@gmail.com>
>> Sent: Thursday, December 28, 2023 20:18
>> To: dev@nuttx.apache.org <dev@nuttx.apache.org>
>> Subject: Re: LittleFS Implementation using MTD for NOR flash
>>
>> Device Drivers -> Memory Technology Device (MTD) Support -> SPI-based
>> M25P/MT25Q
>>
>>> On 28/12/2023 14:28, Janardhan Silwal wrote:
>>> 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
>>>>>
>
> --
> B.Walter <be...@bwct.de> https://www.bwct.de
> Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
