In this commit, the analogin_s structure is moved to commonn_objects.h file
to limit the duplicaion.
The ADC handle is moved from a global variable to a struct member of the
analogin object. This allows multiple ADC instances to work correctly.
Note that State needs to be explicitely set to HAL_ADC_STATE_RESET
because the object is not zero initialized.
TXE indicates that a byte can be written to UART register for sending,
while TC indicates that last byte was completely sent. So the TXE flag
can be used in case of interrupt based Serial communication, to allow
faster and efficient application buffer emptying.
Also TXE flag will be erased from the interrupt when writing to register.
In case there is nothing to write in the register, the application is
expected to disable the interrupt.
The RXNE flag is getting cleared when reading Data Register so it should
not be cleared here. Especially in case of high data rate, another byte of
data could have received during irq_handler call and clearing the flag
would read and discard this data which would be lost for application.
fire_interrupt function should be used for events in the past. As we have now
64bit timestamp, we can figure out what is in the past, and ask a target to invoke
an interrupt immediately. The previous attemps in the target HAL tickers were not ideal, as it can wrap around easily (16 or 32 bit counters). This new
functionality should solve this problem.
set_interrupt for tickers in HAL code should not handle anything but the next match interrupt. If it was in the past is handled by the upper layer.
It is possible that we are setting next event to the close future, so once it is set it is already in the past. Therefore we add a check after set interrupt to verify it is in future.
If it is not, we fire interrupt immediately. This results in
two events - first one immediate, correct one. The second one might be scheduled in far future (almost entire ticker range),
that should be discarded.
The specification for the fire_interrupts are:
- should set pending bit for the ticker interrupt (as soon as possible),
the event we are scheduling is already in the past, and we do not want to skip
any events
- no arguments are provided, neither return value, not needed
- ticker should be initialized prior calling this function (no need to check if it is already initialized)
All our targets provide this new functionality, removing old misleading if (timestamp is in the past) checks.
Depending on families, different HAL macros are defined to check the
state of serial interrupts. In several cases, we can find only 1 macro:
__HAL_UART_GET_IT_SOURCE
Checks whether the specified UART interrupt has occurred or not
But in F0, F3, F7, L0, L4 there are 2 different macros
__HAL_UART_GET_IT
Checks whether the specified UART interrupt has occurred or not
__HAL_UART_GET_IT_SOURCE
Checks whether the specified UART interrupt source is enabled.
In the later case, __HAL_UART_GET_IT_SOURCE was being used so far,
but actually needs to be replaced by __HAL_UART_GET_IT. Using the right
macro, we also check the proper flags accordingly.
Some I2C devices require specific zero length read/write sequences which
the HAL_I2C_IsDeviceReady() redirect interferes with. After Removing
these redirects, it was confirmed that zero length reads and writes
would both still work correctly for detecting presence/absence of an
I2C device on a bus.
In case we've run through the entire GPIOs loop, withouth finding a
matching interrupt, we're in the case of a spurious interrupt, let's
raise an error to track it down.
When disabling GPIO irq, also the falling / rising edge settings need
to be reset (EXTI_RTSR and EXTI_FTSR registers).
If not reset, the same EXTI line can be later enabled again with a wrong
Rising / Falling configuration. This was especially seen and reported in
ci-test tests-api-interruptin on NUCLEO_F446RE target where DIO2=PA_10 and
DIO6=PB_10 were successively tested: as they are sharing the same EXTI_LINE
(EXTI_10), this resulted in calling the irq_handler with wrong
IRQ_FALL/IRQ_RAISE parameter and donothing being called in loop.
This commit completely rewrote flash_api.c in a few places so kicked out changes from Master and accepted the branch changes.
F429 + F439 : changes after code review
GetSector has been rewritten
- default value is the same as before patch
- system_stm32f4xx.c file is copied to family level with all other ST cube files
- specific clock configuration is now in a new file: system_clock.c
- nvic_addr.h file is now in TARGET_STM level, and can be used everywhere
With default sampling time, the MBED2 and CI test shield tests would fail
because the stabilization slope of ADC is relatively slow.
ERROR (out:0.8000) - (in:0.7407) = (0.0593)
ERROR (out:0.9000) - (in:0.8354) = (0.0646)
ERROR (out:1.0000) - (in:0.9289) = (0.0711)
This is related to the 10kOhms resistors used to connect Ain to
Aout mounted on the CI shileds, and internal capacitance of L0 targets.
If connecting Ain and Aout with wires, bypassing the resistors, the test
is passed. So we're increasing the sampling time to let the automated
ci shiled tests PASS.
OK (out:0.8000) - (in:0.7863) = (0.0137)
OK (out:0.9000) - (in:0.8869) = (0.0131)
OK (out:1.0000) - (in:0.9844) = (0.0156)
Moving some code in common to be able to manage several ADC instances,
or several channels of an instance.
The change involves:
- moving dac_s structure definition to common_object.h
- create TARGET_STM/analogout_api.c and move fully common analog_out
functions in there
- rename analogout_api.c of each target family into analogout_device.c
to keep platform specific code
- update analogout_device.c to rely on obj->handle and obj->channel
- align analogout_init function as much as possible between families in
analogout_device.c files
ADC1 channel2 and ADC2 of few targets only have an output switch and no
buffer. This switch needs to be enabled, and also the buffer can be enabled
in order to reduce the output impedance on output, and to drive external
loads directly without having to add an external operational amplifier.
This allows a proper handling of multiple instances. Also this commit
stores the channel in the HAL format so that it can be re-used more easily
and call to HAL are straightforward.
This commit implements a SPI mode which will offer better performance
thanks to usage of Lower Layer API which use fewer registers access,
at the cost of lower robustness (no error management).
Following
Merge pull request #4063 from LMESTM/17q2_L4_bootloader
the NUCLEO_L476RG binairies could not boot anymore.
The change done in #4063 was derived from work on NUCLEO_L429ZI target
which supports uvisor. The VECTORS defintiion is introduced as part of
uvisor support and requires further changes in ld file which were missing.
As uvisor is not considered yet, we remove VECTORS for now and will
introduce only when needed.
Remove HAL_Init and related code from SystemInit and move it to
mbed_sdk_init. The function SystemInit is called early in the boot
sequence before RAM is initialized or the VTOR is setup, so it should
not be used to perform the HAL initialization.
This fixes crashes due the vector table being used before it has been
relocated.
This reduces the number of loads inside of the .data copy loop by 3 by using one more register. It should work on any STM32 with at least 5 general-purpose registers. If only 4 are available, then 1 load could still be removed from the original implementation.
Restore cmsis_nvic (cmsis_nvic.c and cmsis_nvic.h) files for the
implementations which use a mechanism other than the VTOR to set
interrupts. These are vendor specific and were done for M0 devices
which do not have a VTOR.
Note - There were two cmsis_nvic files which did not use the VTOR that
which not restored in this patch. This is because these targets were
not M0 devices and could use the new unified implementation instead.
These files are:
targets\TARGET_ARM_SSG\TARGET_MPS2\TARGET_MPS2_M0P\device\cmsis_nvic.c
targets\TARGET_ONSEMI\TARGET_NCS36510\device\cmsis_nvic.c
Note - cmsis_nvic.c and cmsis_nvic.h were initial removed in
(and restored from) the commit:
b97ffe8fdc -
"CMSIS5: Replace target defined NVIC_Set/GetVector with CMSIS implementation"
Jimmy Brisson
Laurent MEUNIER
jeromecoutant
Martin Kojtal
Rob Meades
andreas.larsson
Bradley Scott
bcostm
Chris
adustm
Brad Perry
Anna Bridge
arostm
Mike Fiore
Andreas Larsson
Russ Butler
Fahrzin Hemmati
Sam Grove