Hi FreeRTOS Forum Members: Here is one problems that encountered during the usage of FreeRTOS-FAT-SL I download the source codes from the official web stie and try to do the simple file operation in FreeRTOS system. However, I have the following compiling errors, I think I do not have those definitions(such as gl_file, glvolume,f_alloccluster……..), so where I can find these definition files, does freeRTOS provided? Beacuse I can not find on the google search engines !! the Free RTOS Source Code File is from: https://github.com/jameswalmsley/FreeRTOS/tree/master/FreeRTOS-Plus/Source/FreeRTOS-Plus-FAT-SL user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fstepnextsector+0x0): undefined reference to gl_volume' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text._f_stepnextsector+0x4): undefined reference toglfile’ user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fstepnextsector+0xc): undefined reference to gl_file' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text._f_stepnextsector+0x14): undefined reference tofalloccluster’ user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fstepnextsector+0x18): undefined reference to _f_getclustervalue' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text._f_stepnextsector+0x1c): undefined reference tofclustertopos’ user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fstepnextsector+0x20): undefined reference to _f_setclustervalue' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text._f_stepnextsector+0x24): undefined reference tofwritefatsector’ user/.output/eagle/debug/lib/libuser.a(usermain.o): In function _f_stepnextsector': /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofalloccluster’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getclustervalue' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofclustertopos’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setclustervalue' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetclustervalue’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_clustertopos' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofwritefatsector’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to gl_sector' user/.output/eagle/debug/lib/libuser.a(user_main.o): In functionfwriteglsector’: /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getcurrsector' user/.output/eagle/debug/lib/libuser.a(user_main.o): In functionfextend’: /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getcurrsector' user/.output/eagle/debug/lib/libuser.a(user_main.o): In functionffseek’: /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getclustervalue' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofclustertopos’ user/.output/eagle/debug/lib/libuser.a(usermain.o): In function _f_readglsector': /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetdecluster’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setlong' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofremovechain’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to f_igettimedate' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetword’ user/.output/eagle/debug/lib/libuser.a(usermain.o): In function _f_updatefileentry': /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetdecluster’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setlong' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofremovechain’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setdecluster' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetlong’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to f_igettimedate' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetword’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setword' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetword’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setfsname' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofchecknamewc’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getvolume' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference toffindpath’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_findfilewc' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofgetlong’ user/.output/eagle/debug/lib/libuser.a(usermain.o): In function fn_filelength': /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetfsname’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_checknamewc' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofgetvolume’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_findpath' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference toffindfilewc’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getlong' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text.fn_open+0x0): undefined reference toglfile’ user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fnopen+0xc): undefined reference to gl_file' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text.fn_open+0x10): undefined reference tofgetdecluster’ user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fnopen+0x14): undefined reference to _f_createfullname' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text.fn_open+0x18): undefined reference tofaddentry’ user/.output/eagle/debug/lib/libuser.a(usermain.o):(.text.fnopen+0x8a): undefined reference to _f_setfsname' user/.output/eagle/debug/lib/libuser.a(user_main.o):(.text.fn_open+0x99): undefined reference tofchecknamewc’ user/.output/eagle/debug/lib/libuser.a(usermain.o): In function fn_open': /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofgetvolume’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_findpath' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference toffindfilewc’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getdecluster' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofclustertopos’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getlong' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofcreatefullname’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_findfilewc' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofgetdecluster’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getlong' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofclustertopos’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_clustertopos' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofaddentry’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_clustertopos' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference toffindfilewc’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getdecluster' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetlong’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setword' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetword’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to f_igettimedate' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetword’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_setword' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofsetword’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_removechain' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofaddentry’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to f_filechangedevent' user/.output/eagle/debug/lib/libuser.a(user_main.o): In functionfnclose’: /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getvolume' user/.output/eagle/debug/lib/libuser.a(user_main.o): In functionfnread’: /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to _f_getvolume' /home/esp8266/ESP8266_RTOS_SDK_V1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fat_sl/common/f_lock.c:642: undefined reference tofgetcurrsector’ /home/esp8266/ESP8266RTOSSDKV1.4.0//include/lwip/ipv4/../../freertos-fat-sl/fatsl/common/flock.c:642: undefined reference to `fgetcurrsector’

I’m afraid we cannot provide support for files or projects you have not obtained from us. If you are interested in FreeRTOS+FAT SL then we do have some pre-configured buildable examples in the main FreeRTOS download: http://www.freertos.org/FreeRTOS-Plus/FreeRTOSPlusFATSL/Demos/FileSystemWin32Simulator_demo.shtml You might also be interested in the FreeRTOS+FAT (without the ‘SL’, and a completely different code base to the ‘SL’ product) pre-configured examples: http://www.freertos.org/FreeRTOS-Plus/FreeRTOSPlusTCP/TCPFATdemo_projects.html