Set the ISR stack to be 1KB. https://github.com/ARMmbed/mbed-os/pull/7238
Set the heap size to 3KB(2KB + overhead + spare) so that atleast 2KB free ram is
available for testing.
With dynamic heap size, explicit size is not required. IAR 7.8 supports
static heap, hence the change is needed in IAR linker files.
--legacyalign, --no_legacyalign are deprecated from ARMC6 compiler, in order to
remove deprecated flags all linker files (GCC and IAR as well to have uniformity)
should strictly align to 8-byte boundary
The period of pwm we could get was limited to 69.9 ms, because prescaler value was set once only during initialization. base->mod is a 16 bit register, to get longer period we have to slow down the clk.
This PR provides implementation of ticker_free() function for the following boards:
ARCH_PRO
EV_COG_AD3029LZ
EV_COG_AD4050LZ
K22F
K64F
K82F
KW24D
KW41Z
LPC546XX
NRF51_DK
NRF52_DK
NUCLEO_F207ZG
NUCLEO_F401RE
NUCLEO_F429ZI
NUCLEO_F746ZG
REALTEK_RTL8195AM
Make rtc_isenabled() to return 1 if the RTC is initialized and the time has been set; 0 otherwise.
Disable clock gate on exit from this function if RTC was initialized.
Keep the RTC code if either DEVICE_RTC or DEVICE_LOWPOWERTIMER is
defined on the devices which use the RTC for both the rtc api and the
low power timer api. This allows DEVICE_LOWPOWERTIMER to be enabled while
DEVICE_RTC is turned off.
1. Enable LPTICKER for K22, K24, K64, K66, K82, KL82F, KW24D
2. Change the implementation to only use the LPTMR which reduces
the amount of interrupts generated which is required for tickless
operation
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Low power ticker time counter is created based on RTC which is driven by 32KHz clock. Additional low power timer is used to generate interrupts.
We need to adapt driver to operate on ticks instead of us.
Perform the following updates:
- provide lp ticker configuration: 32KHz/32 bit counter.
- lp_ticker_init() routine disables lp ticker interrupts .
- adapt the driver functions to operate on ticks instead us.
- adapt comments.
- add us_ticker_free() routine.
Certain instances of the TPM are missing some registers, updated
TPM driver handles this variation. This issue was discovered when
running the PWMOUT tests using the ci-test-shield
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
1. Fix the check to look for if MCG has a PLL
2. Do setup before and after deep sleep mode execution
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
1. Start function: Issue repeat start when bus is busy
2. Byte write function: Do not call SDK function as this does
not work for some of the Kinetis device
3. Byte read function: Do not call SDK function as this would
issue a START and STOP signal which is not required for
I2C byte functions
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
I2C3 clock define was missing. I2C3 is connected to the Arduino
connector which is used by the ci-test shield
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Few targets need more than just pending IRQ set. They include some flags to be
set that are checked in IRQ handler. This is the case for targets in this
commit.
Delta calculation from lp_ticker_set_interrupt() function:
delta_us = timestamp > now_us ? timestamp - now_us : (uint32_t)((uint64_t)timestamp + 0xFFFFFFFF - now_us);
Lets assume that timestam == now_us.
Expected delta value should be 0 and in this current version is 0xFFFFFFFF.
The following condition:
timestamp > now_us
should have the following form:
timestamp >= now_us
Additionally modified us ticker driver to provide the same logic.
If NVIC_NUM_VECTORS is larger than the space allocated by the vector
table in ram (__ram_vector_table_size__) then the call to mbed_cpy_nvic
during boot will corrupt valid data, which can lead to a crash. This
patch fixes the declared number of vectors on the KL27Z, KL43Z and
KL82Z to fix this crash.
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.
Cruz Monrreal
Deepika
Russ Butler
Yossi Levy
Oren Cohen
MateuszM
Jiwon Yune
Przemyslaw Stekiel
Jiwon Yune
David Saada
Mika Leppänen
Bartek Szatkowski
Mahesh Mahadevan
Steven Cartmell
Martin Kojtal
Cruz Monrreal
Martin Kojtal
Maciej Rogozinski
sarahmarshy
Jimmy Brisson
maclobdell
Dexter Fryar
Anna Bridge
Sam Grove