In Mbed OS, page size is program unit, which is different than FMC definition.
After fixing page size, we can pass NVSTORE test (mbed-os-features-nvstore-tests-nvstore-functionality).
Mbed-os 5.4.7 was the last unofficial working support for this target.
Since Mbed-os 5.6.0, the support is now official and VK_RZ_A1H is now "codebase aligned" with GR_PEACH (RZ_A1H) & GR_LYCHEE (RZ_A1LU) !
- sector size is 0x800 bytes
- writeable unit size is 0x8 bytes
- flash start address is 0x0
- total ADuCM3029 on chip flash size is 0x40000 bytes
- total ADuCM4050 on chip flash size is 0x7F000 bytes
fix mbed-ci build error L6216E
* (.ARM.exidx) and *(.init_array) must be placed explicitly, otherwise it is shared between two regions, and the linker is unable to decide where to place it.
This patch changes the linker files and defines to use the ZBT SSRAM
instead of the FPGA Block RAM for code and data.
The section 4.1.1, Code and RAM memory map, of the CM3DS Eval RTL and
testbench user guide explains the available memories.
This switch improves code memory from 256 kB to 4 MB and data memory
from 128 kB to 4 MB.
However, the ZBT SSRAM1 for code memory begins at 0x00400000 while the
processor can only boot at address 0x00000000 which means that it
expects the vector table to be at that address. That is why we have to
create 2 load regions in the linker scripts: one with only the vector
table at address 0x0 and one with code + data at address 0x00400000.
Because of these two load regions, linker will produce different
behaviours:
* GCC_ARM and IAR will only create 1 binary with both load regions
padding with 0 in between. The binary will then be very large (at least
4 MB) and the flash process will take longer.
* ARM and ARMC6 will create 2 binaries for the two load regions. The
load addresses of the two binaries can be written in the images.txt file
on the MPS2 board. You can also use the --bincombined option of fromelf
utility to produce only 1 large binary.
This patch also adds the memory_zones.h file to try to put in common all
the memory addresses that were previously hard coded in the linker
scripts / startup files.
With that patch in, the simplest option is to directly use the .elf file
with the MPS2, which is only possible with mbb_v225.ebf and more recent
firmwares. It will now be the default for CM3DS.
This commit works with greentea thanks to the now merged pull request
ARMmbed/htrun#181 in order to copy .elf file to the MPS2 board.
Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
Ameba has two memory blocks: SDRAM(2M) and SRAM(512KB). SRAM has better access performance than SDRAM. So some timing critical codes must be moved to SRAM.
fix for mbed-os issue #5778
rebase for #6289
Ganesh Ramachandran
Cruz Monrreal
ccli8
Martin Kojtal
zzw
jeromecoutant
mbedNoobNinja
bcostm
li-ho
Amanda Butler
Hugues de Valon
amq