For L0/L4/H7/F7/WB targets that have tickless enabled, remove the tickless from
us ticker and the delay ticks as the C++ wrapper layer is being removed
and replaced by the low layer handling.
For now, the few F4 targets with LPTIM are left with previous configuration
as test results are showing a few instabilities not yet understood.
LP TICKER mbed-os wrapper needs to be disabled as it introduces too much latencies.
LP TICKER wrapper has been disabled and we need to managed the HW constraints at low level:
- main HW constraint is that once the comparator has been programmed once,
driver cannot program it again before CMPOK HW flag is set, which takes about 3 30us cycles.
To make it even more complex, the driver also needs to cope with "LP ticker workaround"
See commit:
LP ticker workaround
There is an errata in LPTIM specification that explains that CMP Flag
condition is not an exact match (COUNTER = MATCH) but rather a
comparison (COUNTER >= MATCH).
Also the disable interrupt is more complete now:
- always check sleep manager status and restore it
- remove irq_handler as comparator is always programed and might get called
eventually when LP TICK is restarted
- reset delayed_prog
Also in set_interrupt, make sure interrupt does not fire early.
If needed, we decide to slightly delay the tick to cope with the HW limitation to
make sure it will fire as soon as HW is capable.
Functions are called under critical section as they may be called from
the IRQ handler now, not only from driver layer.
There is an errata in LPTIM specification that explains that CMP Flag
condition is not an exact match (COUNTER = MATCH) but rather a
comparison (COUNTER >= MATCH).
As a consequence the interrupt is firing early than expected when
programing a timestamp after the 0xFFFF wrap-around.
In order to
work-around this issue, we implement the below work-around.
In case timestamp is after the work-around, let's decide to program the
CMP value to 0xFFFF, which is the wrap-around value. There would anyway be
a wake-up at the time of wrap-around to let the OS update the system time.
When the wrap-around interrupt happen, OS will check the current time and
program again the timestamp to the proper value.
The file 'fsl_powerquad_data.h' declares several dctXXX_cosFactor
arrays with sizes twice larger compared to the actual definitions in
'fsl_powerquad_data.c'.
As the timer code became more generic, coping with initialization on
demand, and variable width and speed us_ticker_api implementations,
wait_us has gradually gotten slower and slower.
Some platforms have reportedly seen overhead of wait_us() increase from
10µs to 30µs. These changes should fully reverse that drop, and even
make it better than ever.
Add fast paths for platforms that provide compile-time information about
us_ticker. Speed and code size is improved further if:
* Timer has >= 2^32 microsecond range, or better still is 32-bit 1MHz.
* Platform implements us_ticker_read() as a macro
* Timer is initialised at boot, rather than first use
The latter initialisation option is the default for STM, as this has
always been the case.
As the build tool in mbed-os 5.13 cannot appropriately deal with a segmented
bootloader when combining it with an application, this commit adjusts the
size reserved for interrupts (via the linker file) to avoid a bootloader
segmentation due to an unpopulated ROM area.
The microcontroller has a total of 60 vector interrupts + 16 exception
handlers. The allocated ROM flash for interrupts should be (60 + 16) x word
size in bytes = 76 x 4 = 304 = 0x130.
This commit changes the interrupt reserved space from 0x140 to 0x130.
This allows Cypress to deliver middleware libraries with
precompiled libraries for SoftFP ahd HardFP, separated by
component-specific sub-directories:
COMPONENT_SOFTFP/TOOLCHAIN_GCC_ARM/libcy_capsense.a
COMPONENT_HARDFP/TOOLCHAIN_GCC_ARM/libcy_capsense.a
At high HCLK rate, M2351 cannot provide zero-wait-state flash performance. Besides,
cache is forcibly turned off for non-secure land for internal reason. We locate
'delay_loop_code' from flash to SRAM to achieve zero-wait-state performance.
Time drifting test cases use serial communication with the host and are unstable on CI.
Skip time-drifting test cases if SKIP_TIME_DRIFT_TESTS macro is defined.
The idea for the future is to use FPGA test shield for timing tests instead of host scripts.
Also remove `__ARM_FM` macro which in most cases was used to disable time drifting tests. In other cases replace `__ARM_FM` with `TARGET_ARM_FM` which is more suitable.
Add a pulse when using hardware chip select for SPI transmissions.
CS is at low level when a transmission is on-going.
Be careful, this is not compatible with all modes. It will work only
if PHA is 0, ie spi mode is 0 or 2. See stm32xx reference manual,
chapter "NSS pulse mode" for more details.
Fix#10671
Signed-off-by: Vincent Veron <vincent.veron@st.com>
Deprecate wait() in favour of acquire(), try_acquire(),
try_acquire_for() and try_acquire_until().
Brings Semaphore more into line with CMSIS-RTOS 2 (which uses "acquire"),
itself (as it has "release"), and other classes having "try", "try for"
and "try until".
Also steps away from vague "wait" term - the primary operation here is
to acquire the semaphore, and this will of course sleep.
* The following v14.2 files are removed from nrfx/legacy:
nrf_drv_clock.h
nrf_drv_common.h
nrf_drv_gpiote.h
nrf_drv_spi.h
nrf_drv_twi.h
nrf_drv_uarth.h
* Remove unneeded references to "nrfx_glue.h" and "nrf_drv_common.h"
* Remove the definition of PACKED from app_util_platform.h (already defined
in mbed_toolchain.h)
* Update all scatterfiles to define MBED_RAM_START and MBED_RAM_SIZE. These
get defined in mbed_lib.json when building with a SoftDevice but were missing
when no SoftDevice is brought in.
* Remove SDK 14.2 SoftDevice files.
* Add missing header file to qspi_api.c.
- Adjust memory for SoftDevice
- Enable PRIO=5 for interrupt priority check
- Change NRF_SD_BLE_API_VERSION to 6
- Add handle and buffer for advertising and scanning
- Remove guard for phy update
- Change scatter files and mbed_lib.json for PR #8607
* Update TARGET_NRF5x/README.md to improve "Changing SoftDevice" section
and added section on NRF52840 CryptoCell310 Support
* Update the file list in TARGET_SDK_15_0/TARGET_SOFTDEVICE_COMMON/README.md
* Add missing CR-LF to Nordic-provided SDK file
* Rename a header file in the TARGET_SOFTDEVICE_S112 tree
This reverts commit 3d2fa535a71b7bad08c6a91a31d74f4492c8948c.
This was a breaking change for the "MBR" and "NONE" builds.
After testing it was also determined that copying the vector
table a second time wasn't required for the "FULL" build.
- Add MBR, NONE and OTA SoftDevice build options for S132 and S140
- Add S112 SoftDevice (single build option)
- Some folder restructuring in TARGET_SOFTDEVICE_COMMON was required
The 15.0 SDK doesn't support the nRF51 so it must continue to use the legacy
NRF drivers. Thus the original common_rtc.c, gpio_api.c and us_ticker.c are
restored and placed under TARGET_NRF5x/TARGET_NRF51.
Likewise the modified common_rtc.c, gpio_api.c and us_ticker.c are moved to
TARGET_NRF5x/TARGET_NRF52 so they are excluded from nRF51 builds.
Ensure that vector table gets initialized properly. The table that we
initialize in startup_nrf52840.S gets wiped out as the section is
declared as noinit. Fix this by implementing the weak function mbed_sdk_init
that inits the vector table.
When the SoftDevice (SD) is enabled we need to set the app_offset
to 0x26000 to make room for the SoftDevice. If we let the build
tools self-manage this, MBED_APP_START is coming out at 0x25000
which is not correct for the Nordic 15.0 SDK.
The app_offset value is translated to MBED_APP_START by the build
infrastructure. We were hard coding MBED_APP_START in the scatter
and ld files as a temporary measure while testing. This now sets
it properly if the SD is being brought in.
Ganesh Ramachandran
Tymoteusz Bloch
George Beckstein
Qinghao Shi
Laurent Meunier
Mahesh Mahadevan
Kevin Bracey
Mathias Brossard
jeromecoutant
Malavika Sajikumar
George Beckstein
Alexandre Bourdiol
Hugues Kamba
Devaraj Ranganna
Filip Jagodzinski
Maciej Bocianski
d-kato
Volodymyr Medvid
Chun-Chieh Li
Vincent Veron
Przemyslaw Stekiel
toyowata
petroborys
Teijo Kinnunen
panyz0725@thundersoft.com
Ronny Liu
Chris Trowbridge
ale87jan
Jaeden Amero
desmond.chen
Lingkai Dong
Hennadiy Kytsun
adbridge
Martin Kojtal
RFulchiero
Naveen Kaje
Ralph F