sample fat_fs

[TF mulder]

Hi,

I'm trying the  sample fat_fs  on the nRF5340 DK

1) It does build, but there is awarning

CMake Warning at D:\nRfConnect\v1.8.0\zephyr\CMakeLists.txt:722 (message):
No SOURCES given to Zephyr library: drivers__disk

2) looked with the debugger: in the main() it reaches the  LOG_ERR("Storage init ERROR!");

void main(void)

if (disk_access_init(disk_pdrv) != 0) {

LOG_ERR("Storage init ERROR!");

 

Could you please comment on the above 2 points ?

What steps should i make to have a SD-card running,  is using sample fat_fs the way to go ?

Best Regards,

Theo

[TF mulder]

Hi Simon,

Thanks for the help.

i added  nrf5340dk_nrf5340_cpuapp.overlay   with the same content as nrf52840_blip.overlay

(added in VisualStudioCode  at input files,  the tool places the file   nrf5340dk_nrf5340_cpuapp.overlay  in the  fat_fs-directory, not in the fat_fs/boards directory)

i placed the same content from nrf52840_blip.overlay   into the  nrf5340dk_nrf5340_cpuapp.overlay

it showed 2 problems:   wiggle-line under &spi1  and a wiggle-line under sdhc@0

I altered &spi1 into &spi2   now the 2 problems where gone.  so did a prestine-build, and looked in the zephyr.dts

in there i found:

spi2: spi@b000 {
#address-cells = < 0x1 >;
#size-cells = < 0x0 >;
reg = < 0xb000 0x1000 >;
interrupts = < 0xb 0x1 >;
status = "okay";
label = "SPI_2";
compatible = "nordic,nrf-spim";
sck-pin = < 0x2f >;
miso-pin = < 0x2e >;
mosi-pin = < 0x2d >;
cs-gpios = < &gpio0 0x11 0x0 >;
sdhc0: sdhc@0 {
compatible = "zephyr,mmc-spi-slot";
reg = < 0x0 >;
status = "okay";
label = "SDHC0";
spi-max-frequency = < 0x16e3600 >;
};

So now the pins ..   does sck-pin <0x2f> means   47 -> 47-32=15   so P1.15    correct??   (and so on for 0x2e, 0x2d)

in the nrf5340 dk schematic i find   p1.15  on GPIO_IF2 D13  ... so ok 

But now the cs-gpios   &gpio0 0x11 0x0        does this mean gpio0   -> P0.00    or  0x11->17-> P0.17  

P0.00 would be OK  (GPIO_IF3 / d14)   but  P0.17 is QSPI_clk (SB21)  so ocuppied.

i will try  to connect a sd-card on the pins  P1.15, P1.14, P1.13   and the CS on P0.00  ..

Then bonus question:  could i alter the pins to different location?, how is that being done in the software ?

Looking forward on your comments Simon,  thanks.

Best Regards,

Theo

[TF mulder]

Hi Simon,

Thanks again for the valuable info.  (definitely more studying on my side :-)

I connected all  and using p0.17 for the cs., and double, double checked.

unfortunately, no cigar.., still not working..   it still hits the LOG_ERR("Storage init ERROR!");  (as with my original question 2) )

maybe relevant to mention .. ??

in de 'input-files'  there are a few problems signaled:

-in the file 'nrf5340dk_nrf5340_cpuapp.dts'  a wiggle-line (at line-13)   compatible = "nordic,nrf5340-dk-nrf5340-cpuapp";

-in the file ''nrf5340_cpuapp_qkaa.dtst 3-wigglles (at line 24)

compatible = "nordic,nRF5340-CPUAPP-QKAA", "nordic,nRF5340-CPUAPP", "nordic,nRF53", "simple-bus";

 wiggles under all exept "simple-bus".

--

then to be sure the connections i made to the sd-card  ( im using: https://www.sparkfun.com/products/544 )

p1.15  connected to 'sck'

p1.14 connected to 'DO'

p1.13 connected to 'DI'

p0.17 connected to 'CS'

vdd   connected to 'VCC'

gnd connected to 'GND'

Please your comments again.. (lets nail this :-)

Best Regards,

Theo

[Simon]

Hmm.. I'm sorry it's that much hassle getting it to work

I will take a deep dive next week and see if I can get to the bottom of it

Best regards,

Simon

[TF mulder]

Hi Simon,

Yes, please do so, ...much appreciated !!

One point i noticed:  in the Device Tree/ GPIO  there i could not find the  cs-gpios, while the 3-Spi signals can be seen in that list.

Im looking forward, to your deep-dive result.

Best Regards,

Theo

[Simon]

Okay, I took a deep dive, but before I add a lot of explanations and what could possibly be the cause, could you test one quick thing? Add these two configs to the file zephyr/samples/subsys/fs/fat_fs/prj.conf.

I think the warning "No SOURCES given to Zephyr library: drivers__disk" will go away when setting CONFIG_DISK_DRIVER_SDMMC=y

Check the file zephyr/samples/subsys/fs/fat_fs/build/zephyr/.config and make these two configs are present and that CONFIG_SDMMC_VOLUME_NAME (this should get enabled automatically when enabling CONFIG_DISK_DRIVER_SDMMC) is equal to "SD" (or whatever disk_pdrv is set equal to).

If it still doesn't work, please get back to me

[TF mulder]

Hi Simon,

i used:  'create new aplication from sample', 'freestanding'

and put in the directory D:\Projects\Nordic_Semi\nRF5340DK\MyApps\fat_fs

D:\Projects\Nordic_Semi\nRF5340DK\MyApps\fat_fs\prj.conf  contains now:

CONFIG_DISK_ACCESS=y

CONFIG_LOG=y

CONFIG_FILE_SYSTEM=y

CONFIG_FAT_FILESYSTEM_ELM=y

CONFIG_PRINTK=y

CONFIG_MAIN_STACK_SIZE=2048

CONFIG_DISK_DRIVER_SDMMC=y

CONFIG_SPI=y

saved all, and did a prestine build:

this is still there:  

CMake Warning at D:\nRfConnect\v1.9.0\zephyr\CMakeLists.txt:764 (message):
No SOURCES given to Zephyr library: drivers__disk

and in the file  D:\Projects\Nordic_Semi\nRF5340DK\MyApps\fat_fs\build\zephyr\  .conf

there is indeed:

CONFIG_SDMMC_VOLUME_NAME="SD"

Best Regards,

Theo

PS: i will go and check if i get signals ??

[TF mulder]

Hi Simon,

I tried again..   the warning

CMake Warning at D:\nRfConnect\v1.9.0\zephyr\CMakeLists.txt:764 (message):
No SOURCES given to Zephyr library: drivers__disk

is now gone..

My mistake sorry

but i do not see the  cs-gpios  signal in the Device Tree/ GPIO

Best Regards,

Theo

PS: i will go and check if i get signals ??

[TF mulder]

When i have nothing in the nrf5340dk_nfr5340_cpuapp.overlay .. THEN i get the  

CMake Warning at D:\nRfConnect\v1.9.0\zephyr\CMakeLists.txt:764 (message):
No SOURCES given to Zephyr library: drivers__disk

back again.