Add license identifier to files which Arm owns the copyright to,
and contain either BSD-3 or Apache-2.0 licenses. This is to address
license errors raised by scancode analysis.
Scancode found missing license notices in our source files. This commit
addresses those issues by adding an Apache-2.0 notice to source files
highlighted.
Workaround a bug where the boot stack size configuration option is not
passed on to armlink, the Arm Compiler's linker. Prefer
MBED_CONF_TARGET_BOOT_STACK_SIZE if present, as this is what the
configuration system should provide. Fall back to MBED_BOOT_STACK_SIZE
if MBED_CONF_TARGET_BOOT_STACK_SIZE is not defined, as in the case of
buggy tools. If both MBED_CONF_TARGET_BOOT_STACK_SIZE and
MBED_BOOT_STACK_SIZE are not defined, then we fall back to a hard-coded
value provided by the linkerscript. See
https://github.com/ARMmbed/mbed-os/issues/13474 for more information.
To allow overriding of the boot stack size from the Mbed configuration
system, consistently use MBED_CONF_TARGET_BOOT_STACK_SIZE rather than
MBED_BOOT_STACK_SIZE.
Fixes#10319
ARM Compiler 6.13 testing revealed linker errors pointing out
conflicting use of `__user_setup_stackheap` and
`__user_initial_stackheap` in some targets. Remove the unwanted
`__user_initial_stackheap` from the targets - the setup is
centralised in the common platform code.
Looking into this, a number of other issues were highlighted
* Almost all targets had `__initial_sp` hardcoded in assembler,
rather than getting it from the scatter file. This was behind
issue #11313. Fix this generally.
* A few targets' `__initial_sp` values did not match the scatter
file layout, in some cases meaning they were overlapping heap
space. They now all use the area reserved in the scatter file.
If any problems are seen, then there is an error in the
scatter file.
* A number of targets were reserving unneeded space for heap and
stack in their startup assembler, on top of the space reserved in
the scatter file, so wasting a few K. A couple were using that
space for the stack, rather than the space in the scatter file.
To clarify expected behaviour:
* Each scatter file contains empty regions `ARM_LIB_HEAP` and
`ARM_LIB_STACK` to reserve space. `ARM_LIB_STACK` is sized
by the macro `MBED_BOOT_STACK_SIZE`, which is set by the tools.
`ARM_LIB_HEAP` is generally the space left over after static
RAM and stack.
* The address of the end of `ARM_LIB_STACK` is written into the
vector table and on reset the CPU sets MSP to that address.
* The common platform code in Mbed OS provides `__user_setup_stackheap`
for the ARM library. The ARM library calls this during startup, and
it calls `__mbed_user_setup_stackheap`.
* The default weak definition of `__mbed_user_setup_stackheap` does not
modify SP, so we remain on the boot stack, and the heap is set to
the region described by `ARM_LIB_HEAP`. If `ARM_LIB_HEAP` doesn't
exist, then the heap is the space from the end of the used data in
`RW_IRAM1` to the start of `ARM_LIB_STACK`.
* Targets can override `__mbed_user_setup_stackheap` if they want.
Currently only Renesas (ARMv7-A class) devices do.
* If microlib is in use, then it doesn't call `__user_setup_stackheap`.
Instead it just finds and uses `ARM_LIB_STACK` and `ARM_LIB_HEAP`
itself.
We should not block in case the UART is busy transmitting. The
API has been updated to check the status of all UART's and return
1 in case any of them is busy transmitting.
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
1. FPGA test shield requires at least half sclk period delay between
CS assertion and first sclk edge
2. Update Kinetis SPI drivers to match what is already done for K64F
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
- Added dummy data setup API to allow users to configure
the dummy data to be transferred.
- Added new APIs for half-duplex transfer function. Users
can send and receive data by one API in the polling/interrupt/EDMA way,
and they can choose either to transmit first or to receive first.
Additionally, the PCS pin can be configured as assert status in
transmission (between transmit and receive) by setting the
isPcsAssertInTransfer to true.
- Fix for MISRA issues
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Update includes allocating RAM region for code to enter
stop modes and execute this code in RAM, thus the flash
is idle and no prefetch is performed while entering stop
mode.
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
Add 16-bit access mode when writing the transfer size to prevent
the QSPI transaction from starting
Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
--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
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
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>
Harrison Mutai
Martin Kojtal
Jaeden Amero
talorion
MarceloSalazar
Kevin Bracey
Mahesh Mahadevan
Filip Jagodzinski
deepikabhavnani
Russ Butler
Przemyslaw Stekiel
Cruz Monrreal II
Yossi Levy
Oren Cohen
David Saada
Cruz Monrreal
Jimmy Brisson