Tickless on STM32 NUCLEO_L073RZ board causes SPI issue

[mprse]

Summary of changes

FPGA SPI test fails while testing asynchronous mode.

It looks like low-level-lpticker-wrapper latency causes issue similar to #8714 and #9785, especially with SPI async which use interrupts.

Related PR: #11713

I remember that we have added low-level-lpticker-wrapper to enable tickles mode, but unfortunately, it is still causing problems with SPI async mode. Verified that with tickles disabled test passes. The test also passes if I increase transmission speed.

Impact of changes

Migration actions required

Documentation

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Pull request type

[X] Patch update (Bug fix / Target update / Docs update / Test update / Refactor)
[] Feature update (New feature / Functionality change / New API)
[] Major update (Breaking change E.g. Return code change / API behaviour change)

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Test results

[] No Tests required for this change (E.g docs only update)
[X] Covered by existing mbed-os tests (Greentea or Unittest)
[] Tests / results supplied as part of this PR

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Reviewers

Please review @LMESTM @jeromecoutant @jamesbeyond

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[ciarmcom]

@mprse, thank you for your changes.
@jeromecoutant @jamesbeyond @LMESTM @ARMmbed/mbed-os-maintainers please review.

[jeromecoutant]

Hi

We don't want to remove TICKLESS from STM32L0.

@ABOSTM is going to check this SPI issue

Regards,

[ABOSTM]

Hi @mprse ,
As said @jeromecoutant , we don't want to disable tickless for L0 family because those chips are specially design for LowPower.
Another alternative would be to disable SPI async mode for L0, but instead, we proposed a change in STM32 Cube HAL behavior to prevent overrun in case of SPI async. As it impacts performances, it is applies only to L0 family.
So I propose to cancel the current PR, and instead use:
#12362