diff options
Diffstat (limited to 'update-ec20/README.ascii')
| -rw-r--r-- | update-ec20/README.ascii | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/update-ec20/README.ascii b/update-ec20/README.ascii index eee0cea..636acdb 100644 --- a/update-ec20/README.ascii +++ b/update-ec20/README.ascii @@ -11,7 +11,17 @@ compressed update. The size of that area seems to be computed as: 8 * num_diffs (maybe two CRC32?) 4 * num_insert (maybe a single CRC32)? - followed by lzma + followed by lzma... TOC of size compress_sz + LZMA again.. depends on the TOC.. delta_pos contains addr + + +LZMA needs to be compressed in 'alone' format and needs to have +the decompressed size in the header! 0xFF... leads to parse error +xz -F alone demo.sh + +LZMA: https://github.com/nobled/xz/commit/7d17818cec8597f847b0a2537fde991bbc3d9e96 +removed uncompressed_size support. So an plder version is needed.. +or use the original lzma SDK 0x0000d084 in is_expected_sig () |