NOTICE: The Processors Wiki will End-of-Life on January 15, 2021. It is recommended to download any files or other content you may need that are hosted on processors.wiki.ti.com. The site is now set to read only.

LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL

From Texas Instruments Wiki
Jump to: navigation, search

What is the difference between:

   FLASH0  (RX) : origin=0x00000020 length=0x001FFFE0 vfill = 0xffffffff

and

   FLASH0  (RX) : origin=0x00000020 length=0x001FFFE0 fill = 0xffffffff

The former (vfill) doesn't cause the linker to output the fill value of 0xFFFFFFFF over the entire region specified. Instead, it instructs the linker to treat the memory region as if it is filled with 0xFFFFFFFF when the linker calculates the data values for the ECC regions.

The latter (fill) would actually output all of the flash contents plus fill data for the flash.

The difference between the two options is mainly significant when using a slower debug probe like the XDS100 class probe that is included on the launchpad. Using vfill will result in a download size that is the size of the program plus ECC data (about 512K). Whereas using the 'fill' directive would mean downloading a 4 MByte image even for a small 'blinky' program.

Assuming flash is erased before programming - both choices will result in the flash being programmed with valid ECC contents for every address - but the vfill based .out file program in about 1 minute instead of 4-5 minutes.

E2e.jpg {{
  1. switchcategory:MultiCore=
  • For technical support on MultiCore devices, please post your questions in the C6000 MultiCore Forum
  • For questions related to the BIOS MultiCore SDK (MCSDK), please use the BIOS Forum

Please post only comments related to the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here.

Keystone=
  • For technical support on MultiCore devices, please post your questions in the C6000 MultiCore Forum
  • For questions related to the BIOS MultiCore SDK (MCSDK), please use the BIOS Forum

Please post only comments related to the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here.

C2000=For technical support on the C2000 please post your questions on The C2000 Forum. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here. DaVinci=For technical support on DaVincoplease post your questions on The DaVinci Forum. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here. MSP430=For technical support on MSP430 please post your questions on The MSP430 Forum. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here. OMAP35x=For technical support on OMAP please post your questions on The OMAP Forum. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here. OMAPL1=For technical support on OMAP please post your questions on The OMAP Forum. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here. MAVRK=For technical support on MAVRK please post your questions on The MAVRK Toolbox Forum. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here. For technical support please post your questions at http://e2e.ti.com. Please post only comments about the article LAUNCHXL2 570LC43: LinkerECCRecommendation - VFILL vs. FILL here.

}}

Hyperlink blue.png Links

Amplifiers & Linear
Audio
Broadband RF/IF & Digital Radio
Clocks & Timers
Data Converters

DLP & MEMS
High-Reliability
Interface
Logic
Power Management

Processors

Switches & Multiplexers
Temperature Sensors & Control ICs
Wireless Connectivity