ROM - Memory Report

[LeoSanta]

Hello everybody,

I am doing some optimizations on the code due to I am at 94% of used of the ROM (I am using DFU).

When I created the memory report, I realized that there is a part called No Path that demads more than a half of the rom.

My questions are:

1. What does No Path refer to?

2. Is it possible to reduce its size?

Thank you in advace for your help.

Leonardo Santa

[Priyanka]

Hi Leonardo,

Could you share a picture of the same after expanding the dropdown option for No Paths?

Best Regards,

Priyanka

[LeoSanta]

Hi dear Priyanka,

As you will see in the image, there are a lot of small files.

[Priyanka]

Hi Leonardo,

This does seem to take a lot of memory. Could you let me know which sample/application you have used so that I can try to replicate this?

-Priyanka

[LeoSanta]

Hi Priyanka,

I took the example from  Add DFU support to your application and I added some modifications.

I have also realized that when I add some lines at the prj.conf the No Path memory usage increased drastically:

1. CONFIG_MCUMGR_SMP_BT=y increases around 62kb the flash usage in the No Paths memory report.

2.CONFIG_BT_CENTRAL=y increases around 45kb the flash usage in the No Paths memory report.

My prj.conf looks like this:

# Enable GPIO
CONFIG_GPIO=y
CONFIG_GPIO_AS_PINRESET=y

# ENABLE UART
CONFIG_SERIAL=y
CONFIG_UART_CONSOLE=n
CONFIG_UART_ASYNC_API=y
CONFIG_NRFX_UARTE0=n
CONFIG_UART_0_ASYNC=y
CONFIG_UART_INTERRUPT_DRIVEN=n
CONFIG_UART_0_INTERRUPT_DRIVEN=n
CONFIG_UART_USE_RUNTIME_CONFIGURE=y
CONFIG_NEWLIB_LIBC_FLOAT_PRINTF=n
CONFIG_CBPRINTF_FP_SUPPORT=n
CONFIG_LOG=n

# Enable POWER SAVE
CONFIG_PM_DEVICE=y
CONFIG_NRFX_POWER=y

# Enable LP_TIMER (RTC)
CONFIG_NRFX_RTC0=n
CONFIG_NRFX_RTC1=n
CONFIG_NRFX_RTC2=y

# Enable CLOCK
CONFIG_NRFX_CLOCK=n
CONFIG_CMU_HFCLK_HFRCO=n

# DFU settings
CONFIG_MCUMGR=y
CONFIG_MCUMGR_CMD_IMG_MGMT=y
CONFIG_MCUMGR_CMD_OS_MGMT=y
CONFIG_BOOTLOADER_MCUBOOT=y
CONFIG_SPEED_OPTIMIZATIONS=y
CONFIG_BT_L2CAP_TX_MTU=252
CONFIG_BT_BUF_ACL_RX_SIZE=256
CONFIG_MCUMGR_SMP_BT=y
CONFIG_MCUMGR_SMP_BT_AUTHEN=n
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096

# Enable BLUETOOTH
CONFIG_BT=y
CONFIG_BT_SMP=y
CONFIG_BT_CENTRAL=y
#CONFIG_BT_PERIPHERAL=y
CONFIG_BT_DEVICE_NAME="GATEWAY_MI"
CONFIG_BT_CTLR_PHY_CODED=y
CONFIG_BT_EXT_ADV=y
#CONFIG_BT_SCAN=y
CONFIG_BT_CTLR_TX_PWR_DYNAMIC_CONTROL=n
CONFIG_BT_EXT_ADV_MAX_ADV_SET=1
CONFIG_BT_SCAN_FILTER_ENABLE=y
CONFIG_BT_SCAN_ADDRESS_CNT=5

# Heap memory pool 256/1024/4096/16384
CONFIG_HEAP_MEM_POOL_SIZE=4096
CONFIG_NEWLIB_LIBC_MIN_REQUIRED_HEAP_SIZE=2048

# C++ config
CONFIG_NEWLIB_LIBC=y
CONFIG_MINIMAL_LIBC=n
CONFIG_CPLUSPLUS=y
##CONFIG_STD_CPP2A=y
##CONFIG_LIB_CPLUSPLUS=y
##CONFIG_NEWLIB_LIBC_NANO=n

# disable features not needed
CONFIG_DEBUG=n
CONFIG_MDIO=n
CONFIG_PRINTK=n

[Priyanka]

Hi Lonardo,

I have reported this internally and will let you know as soon as I get a response.

-Priyanka

[LeoSanta]

Hi Priyanka, 

do you know if there are any news about the issue?

Greetings,

Leonardo

[Priyanka]

Hi Leonardo,

I still haven't got a fixed response. have asked again. Sorry for the delay. I will get back to you.

Regards,

Priyanka

[John Lee]

Are there any updates?
What does Hidden and No Paths mean?

[anicare-tero]

I would like to know that too.

My 'Hidden' part is 24.82% and 'No paths' part (most of the application functions etc.) is 40.79%.