# To enable support for SD card, you must grab a copy FatFS:
# curl -O http://elm-chan.org/fsw/ff/arc/ff14b.zip
# unzip ff14b.zip 'source/*'
# mv source/* FatFS
# rm -fr ff14b.zip source FatFS/diskio.c
# Next, apply the changes outlined in FatFS/README.md and then
Linking .pio/build/btt_skr_pro_1_1/firmware.elf
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_getfree':
fs_fatfs.c:(.text.fs_getfree+0xa): undefined reference to `f_getfree'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_utime':
fs_fatfs.c:(.text.fs_utime+0x32): undefined reference to `f_utime'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_stat':
fs_fatfs.c:(.text.fs_stat+0x8): undefined reference to `f_stat'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_readdir':
fs_fatfs.c:(.text.fs_readdir+0x12): undefined reference to `f_readdir'
fs_fatfs.c:(.text.fs_readdir+0x50): undefined reference to `f_readdir'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_opendir':
fs_fatfs.c:(.text.fs_opendir+0x12): undefined reference to `f_opendir'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_chdir':
fs_fatfs.c:(.text.fs_chdir+0x2): undefined reference to `f_chdir'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_mkdir':
fs_fatfs.c:(.text.fs_mkdir+0x2): undefined reference to `f_mkdir'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_unlink':
fs_fatfs.c:(.text.fs_unlink+0x2): undefined reference to `f_unlink'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_rename':
fs_fatfs.c:(.text.fs_rename+0x2): undefined reference to `f_rename'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_seek':
fs_fatfs.c:(.text.fs_seek+0x4): undefined reference to `f_lseek'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_write':
fs_fatfs.c:(.text.fs_write+0x16): undefined reference to `f_write'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_read':
fs_fatfs.c:(.text.fs_read+0xe): undefined reference to `f_read'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_close':
fs_fatfs.c:(.text.fs_close+0x6): undefined reference to `f_close'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_open':
fs_fatfs.c:(.text.fs_open+0x22): undefined reference to `f_open'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_getcwd':
fs_fatfs.c:(.text.fs_getcwd+0x6): undefined reference to `f_getcwd'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/fs_fatfs.o: In function `fs_closedir':
fs_fatfs.c:(.text.fs_closedir+0x8): undefined reference to `f_closedir'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/sdcard.o: In function `sd_cmd_unmount':
sdcard.c:(.text.sd_cmd_unmount+0x28): undefined reference to `f_mount'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/sdcard.o: In function `sd_cmd_unlink':
sdcard.c:(.text.sd_cmd_unlink+0xc): undefined reference to `f_unlink'
.pio/build/btt_skr_pro_1_1/libaa9/sdcard/sdcard.o: In function `sdcard_mount':
sdcard.c:(.text.sdcard_mount+0x3a): undefined reference to `f_mount'
.png "使用 SD 卡支持构建失败。 #108"){kind=avatar}
.png "使用 SD 卡支持构建失败。 #108"){kind=avatar}
当我尝试向构建添加对 sdcard 的支持时（FatFS 已经包含所有文件，修改 platformio.ini 以包括 sdcard 和 fatfs 支持）构建失败：
附言。platformio.ini 文件包含这个似乎不再适用？FatFS 文件夹已经包含所有文件，并且 FatFS/README.md 不再存在。