samples: fs: fat_fs: Add RAM disk sample for nrf52840dk #69668
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Converted draft, til the hwmv2 gets merged. |
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Needs rebase |
Add configuration for nrf52840dk that allows to create RAM disk; this configuration does not reserve special region in RAM using DTS but uses automatic buffer allocation, by RAM Disk Drivers, according to RAM disk specification in DTS. Signed-off-by: Dominik Ermel <[email protected]>
Add overlay, for nrf52840dk, that reserves RAM in internal SRAM using the DTS definition. The sample with such region can be built with the config file nrf52840dk_nrf52840_ram_disk_region.conf, but, instead of automatically allocating memory, the Disk driver will use the pre-defined region provided by the DTS overlay. Signed-off-by: Dominik Ermel <[email protected]>
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| @@ -31,6 +31,18 @@ tests: | |||
| sample.filesystem.fat_fs.nrf52840dk_nrf52840: | |||
| build_only: true | |||
| platform_allow: nrf52840dk/nrf52840 | |||
| sample.filesystem.fat_fs.nrf52840dk_nrf52840_ram_disk: | |||
| build_only: true | |||
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Why build only? (other than that the other testcases already have this set)
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I am not sure why we want to run this every time, but we want to know whether it still builds.
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Fair enough- I guess the runtime overhead is a concern for testing teams?
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Yeah, in reality the run should be done by test and verified - that way we will know whether it works internally.
The sample should be just like "Hello world" where we assume that everything works and just show people, in very simplified form, how to do things.
I was asked how do the disk in RAM, several times, and now I can just point to sample.
Building is still taking some CI time, so not perfect anyway.
Add configuration for nrf52840dk that allows to create RAM disk; this configuration does not reserve special region in RAM using DTS but uses automatic buffer allocation, by RAM Disk Drivers, according to RAM disk specification in DTS.