AM625: Shared Memory between linux and nonrtos M4F MCU

Hi Nick,

i just tried to import the example into CCS from this site:

https://git.ti.com/cgit/rpmsg/rpmsg_char_zerocopy/commit/?id=8957444374d790f0d9a6d026da9632793c9efb63

I believe this is the part for the AM62xx M4F ?

 i got this error:

can you please help?

BR's

Martin

Hello Martin,

1) What version of CCS are you using, and what versions of Linux and MCU+ SDK are you using?

2) In CCS, please check for updates and make sure the Sitara devices do not need an update.

On my side, I will double-check on what versions were used to develop the example.

Regards,

Nick

Hi Nick,

i use CCS v12.2.0

MCU+ SDK 08.05.00.14

SysConfig: 1.15.0

Linux not yet installed

Update checked no updates needed.

BR's

Martin

Additional information:

i created a new project with rpmsg_char_zerocopy

(found in folder ../rtos/am62x-sk/m4fss0-0_freertos)

i got this error:

*** Build of configuration Debug for project Example_char_zerocopy ****

"C:\\ti\\ccs1220\\ccs\\utils\\bin\\gmake" -k -j 4 all -O

Building file: "../example.syscfg"
Invoking: SysConfig
"C:/ti/ccs1220/ccs/utils/sysconfig_1.15.0/sysconfig_cli.bat" -s "C:/ti/mcu_plus_sdk_am62x_08_05_00_14/.metadata/product.json" --script "C:/Users/mh/workspace_v12/Example_char_zerocopy/example.syscfg" -o "syscfg" --compiler ccs
subdir_rules.mk:9: recipe for target 'build-198844305' failed
Package not found: BGA. This package may be available in a newer version of SysConfig
gmake: *** [build-198844305] Error 1
gmake: Target 'all' not remade because of errors.

If i try to open the example.sysconfig i get the following:

Package information problem solved by adding 

"--package ALW" to project properties->SysConfig->Miscellaneous

by adding the needed include options:

and Predefined symbols:

i could built the project.

now it tells me:

Invoking: Arm Linker
"C:/ti/ccs1220/ccs/tools/compiler/ti-cgt-armllvm_2.1.2.LTS/bin/tiarmclang.exe" -mcpu=cortex-m4 -mfloat-abi=hard -mlittle-endian -mthumb -Og -DSOC_AM62X -D_DEBUG_=1 -g -Wl,-m"Example_charcopy.map" -Wl,-i"C:/ti/ccs1220/ccs/tools/compiler/ti-cgt-armllvm_2.1.2.LTS/lib" -Wl,--reread_libs -Wl,--diag_wrap=off -Wl,--display_error_number -Wl,--warn_sections -Wl,--xml_link_info="Example_charcopy_linkInfo.xml" -Wl,--rom_model -o "Example_charcopy.out" "./syscfg/ti_dpl_config.o" "./syscfg/ti_drivers_config.o" "./syscfg/ti_drivers_open_close.o" "./syscfg/ti_pinmux_config.o" "./syscfg/ti_power_clock_config.o" "./syscfg/ti_board_config.o" "./syscfg/ti_board_open_close.o" "./main.o" "../linker.cmd"
makefile:141: recipe for target 'Example_charcopy.out' failed
warning #10247-D: creating output section ".cinit" without a SECTIONS specification
"../linker.cmd", line 25: error #10099-D: program will not fit into available memory, or the section contains a call site that requires a trampoline that can't be generated for this section. run placement with alignment fails for section ".bss" size 0x8508c. Available memory ranges:
M4F_DRAM size: 0x10000 unused: 0xfec0 max hole: 0xfec0

undefined first referenced
symbol in file
--------- ----------------
AddrTranslateP_Params_init ./syscfg/ti_dpl_config.o
AddrTranslateP_init ./syscfg/ti_dpl_config.o
ClockP_init ./syscfg/ti_dpl_config.o
DebugP_logZoneEnable ./syscfg/ti_dpl_config.o
DebugP_memLogWriterInit ./syscfg/ti_dpl_config.o
DebugP_uartSetDrvIndex ./syscfg/ti_dpl_config.o
HwiP_enable ./syscfg/ti_dpl_config.o
HwiP_init ./syscfg/ti_dpl_config.o
IpcNotify_Params_init ./syscfg/ti_drivers_config.o
IpcNotify_init ./syscfg/ti_drivers_config.o
MpuP_init ./syscfg/ti_dpl_config.o
Pinmux_config ./syscfg/ti_pinmux_config.o
RPMessage_Params_init ./syscfg/ti_drivers_config.o
RPMessage_init ./syscfg/ti_drivers_config.o
SOC_moduleClockEnable ./syscfg/ti_power_clock_config.o
SOC_moduleSetClockFrequency ./syscfg/ti_power_clock_config.o
Sciclient_init ./syscfg/ti_drivers_config.o
UART_init ./syscfg/ti_drivers_config.o
_DebugP_assert ./syscfg/ti_drivers_config.o
_DebugP_assertNoLog ./syscfg/ti_drivers_config.o
ipc_rpmsg_zerocopy_main ./main.o
vTaskDelete ./main.o
vTaskStartScheduler ./main.o
xTaskCreateStatic ./main.o

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "Example_charcopy.out" not built
tiarmclang: error: tiarmlnk command failed with exit code 1 (use -v to see invocation)
gmake[1]: *** [Example_charcopy.out] Error 1
gmake: *** [all] Error 2
makefile:137: recipe for target 'all' failed

Ok now i got it to work:

had to add all linker libs:

and also suppress that warning:

With linker Runtime environment-> Initialization model changed to "Link using RAM autoinitialization model"

i eliminated the warning: 

warning #10247-D: creating output section ".cinit" without a SECTIONS specification

BR's

Martin

So my question is:

With A53SS0 Core 0 = PIC Notify ONLY i am able to build the application.

With A53SS0 Core 0 = IPC Notify + IPC RP Message the app needs 524288 Bytes of additional data and the app will not build:

makefile:147: recipe for target 'Example_charcopy.out' failed
"../linker.cmd", line 25: error #10099-D: program will not fit into available memory, or the section contains a call site that requires a trampoline that can't be generated for this section. run placement with alignment fails for section ".bss" size 0x89f3e. Available memory ranges:
M4F_DRAM size: 0x10000 unused: 0xd940 max hole: 0xd940
error #10010: errors encountered during linking; "Example_charcopy.out" not built
tiarmclang: error: tiarmlnk command failed with exit code 1 (use -v to see invocation)
gmake[1]: *** [Example_charcopy.out] Error 1
gmake: *** [all] Error 2
makefile:143: recipe for target 'all' failed

What to do next please?

Another question:

Am I right that i am in need of a virtual Linux development host for the Linux-App and Kernel?

BR's

Martin

Hello Martin,

Hmm, ok I would tentatively expect that you would be able to load and build the example project with that version of CCS and SDK.

I will take a closer look tomorrow. Please keep me honest and ping the thread on Monday if I haven't replied.

Regards,

Nick