matlab import binary data [duplicate] - matlab

Question

This question already has an answer here:
Reading multiple precision binary files through fread in Matlab
(1 answer)
Closed 8 years ago.
I'd like to import binary data to matlab. I the specifications of the binary data:
First Byte: Start of package
Second Byte: Command Value
Command Data: (consisting of:)
Data format:
"%1B(Hours)%1B(Minutes)%4F(Seconds)%4F(NormAccelX)%4F(NormAccelY)%4F(NormAccelZ)%4F(OrientPitch)%4F(OrientYaw)%4F(OrientRoll)%4F(UOrientPitch)%4F(UOrientYaw)%4F(UOrientRoll)%4F(GyroX)%4F(GyroY)%4F(GyroZ)%4U(ChipTimeMS)%4U(ChipTimeMS)%4F(RawGyroX)%4F(RawGyroY)%4F(RawGyroZ)%4F(RawAccelX)%4F(RawAccelY)%4F(RawAccelZ)"
Last Byte: Checksum (sum of all other bytes except first)
Data is stored in big-endian format!
Now, I would like to read the data into an array in Matalab.
Below, I have given the first few line of the file. The data is the output of an IMU.
I would really appreciate some help! Thanks in advance!!!
B[Ý=:„œ>YÃd¿yßa¿æc#
Wu¼ï1š¿æƒh¾ÿœr½O„e½ <[¼"!­O¹›O¹¢À  ¿€ ¿€ D† Em Æt B[êQ=+^P>[,¿yÖ†¿æʳ#
;>¼÷¿æì4¿ ??½St'½6¥ñ<»¼r2OOêIOêPÁP #À À  D| En Æs€ B[÷= T>T™¿z8Í¿æÄw#
6â¼õk‹¿ææ'¿ P±½RŸV½T¬-;Ô,¼µ% PéPðÁ˜ À# Á0 Dp Eg ÆsÀ B\’=DÑ>X¦ø¿y玿æÃÖ#
4¼õŽ°¿æ妿 \ ½R°˜½1¤æ<·&¼ƒ<PF‘PF˜Á# A ÀÀ DŠ Ej Ær B\L=>®m>Vi¿z¿æ¼|#
0ȼõ¢’¿æÞp¿ i½Rºc½O«#<Á(¼r2OPwPw"Á A0 À  Dˆ Ei Æt B\=B>Z%e¿yÓÜ¿æ´%#
.¼õ¾¿æÖ8¿ t½Rk9½r²k<·&¼r2OP§¤P§«ÁÈ A À  DŠ Em Æs€ B\(Æ=0[>[¿yÔ†¿æ®ù#
*¼ôºº¿æÑ1¿ ‚>½RF½Jª<»¼"!­PØMPØTÁˆ #À ¿€ D€ Em Ær€ B\5=E¾
>W[Æ¿yø¿æªÚ#
'9¼ôt0¿æÍ6¿ ]½R"Œ½;¦û<b.ü¼«#ŒQÜQãÁ` ## Á DŒ Ek Æt  B\B9=E¸å>[R¨¿yÀî¿æ¬##
"V¼õc¿æε¿ ¢ò½Rtì½E©<N*Ô¼É)ÉQ9cQ9iÁ€ # ÁP DŒ Eo Æt# B\Oi=Z;Ö>W|à¿yåA¿æ¬Â#
“¼öš¿æÏŠ¿ ¶½S4Ù½Y­7<­#÷¼¡!xQk±Qk·Á  A Á D– Ej Æs# B\\ =BW5>ZÙ¶¿yÊ8¿æ±Å#
ó¼÷ ¿æÔµ¿ Ä‹½Sw ½^®B<é0p¼«#ŒQœ0Qœ6Á¨ Ap Á DŠ En ÆsÀ B\hØ=Eæ(>U‡ï¿z
¿æ¬#
Þ¼÷”û¿æÏ&¿ Ðâ½S±Õ½,£Ü;Ô,»ô2ºQÌ´QÌ»Á0 À# ?€ DŒ Ei Æt  B\u•=MÅÝ>T®G¿zH¿æ¥Ÿ#
¼øbó¿æÈÏ¿ Ü%½Tœ½#¨;8&B¼J)þQýMQýTÁp ÀÀ À# D Eh Æt€ B\‚M=:(£>Ocù¿zl°¿æ \#
¼ù9¿æè¿ æ+½Tn½Jª<­#÷¼¡!xR-ÒR-ØÁˆ A Á D† Ec Æu€ B\ˆ=M™à>Q‡_¿z#û¿æœ#
¨¼ùec¿æÀ¿ ùƽT™`½O«#<»¼Ý-ñR`IR`PÁ #À Áp D Ee Æu B\œ?=L:G>Z’¿yÍS¿æ™¨#
5¼ú®,¿æ½Z¿™½U=u½Jª<·&¼µ% RÌRÒÁˆ A Á0 DŽ Ek Æq` B\¨ø=3Q¼>Xc<¿y÷Å¿æ•é#
;¼úå¿æ¹¼¿ƒ½Tè½O«#<N*Ô¼^.&RÁSRÁZÁ # À€ D‚ Ek Æs€ B\µ²=8
¢>UQ¿zŽ¿æŽ#
Ö¼øÌÁ¿æ²¿)½TL5½O«#:Ð+#¼Ý-ñRñÞRñåÁ Àà Áp D„ Eg ÆrÀ B\Âm=.í^>WǺ¿zH¿æŒ6# ü”¼÷‡Ë¿æ°i¿:!½S©j½w³u=œ`¼ƒ<S"nS"tÁÐ A˜ ÀÀ D€ Ek Æt# B\Ï(=>[Î>S½¿z/G¿æ‹J# ÷Ǽ÷"_¿æ¯°¿MY½Svo½^®B=Ÿ¼¡!xSSSSÁ¨ A° Á Dˆ Eg Æt  B\Üc=0oD>S‚F¿z<™¿æ‰E# ô]¼÷(À¿æ­Ò¿[½SyD½Jª<Õ,H¼^.&S…zS…€Áˆ AP À€ D€ Ee ÆrÀ B\é,=4T„>Z’¿yؤ¿æ‰µ# ïì¼õxý¿æ®r¿lǽR¡½|´<…¦¼PS¶=S¶CÁØ #  Àà D‚ El Ær B\õë=>iã>VÊâ¿z“¿æˆú# 쌼óÖn¿æ­Ü¿zD½QÏ–½w³u<b.ü¼^.&SæÛSæâÁÐ ## À€ Dˆ Ej Æt# B]¢='0¸>\Îs¿yÂT¿æ†t# éT¼ó•…¿æ«y¿‡*½Q®å½^®B<£!ã¼…T_TfÁ¨ A Dx Ep ÆsÀ B]^=3ÔÞ>V÷ê¿z
þ¿æ†¼# å×¼óN¿æ«è¿• ½QŠñ½Jª<v3%¼—eTGñTG÷Áˆ #€ Á D‚ Ei Æs B]='m>Tê¿z;r¿æú# áͼñØU¿æ§R¿¥G½PÏýT¬-<[¼PTxnTxuÁ˜ ¿€ Àà Dx Eg Æt` B])P==yá>[¾Ÿ¿yÁe¿æ‚þ# Ý‹¼òÙA¿æ¨†¿¶T½QOá½T¬-<£!㼡!xTªéTªïÁ˜ A Á Dˆ Ep Ætà B]6=B5>S¸]¿z,“¿æW# Ú¤¼òßp¿æ¦þ¿Á÷½QRÒ½O«#<:&¬¼r2OTÛ…TÛŒÁ ?€ À  DŠ Eg Æt  B]BÍ=E|>T¿z$Ç¿æ±# Õ"¼òèô¿æ¥•¿Ø½QW,½#¨<»¼PU%U,Áp #À Àà DŒ Eh Æu# B]O‰=>ú>U\ë¿zt¿æ}# ÐÞ¼ò»î¿æ£°¿é½Q#T½h°V<N*Ô¼É)ÉU<¸U<¿Á¸ # ÁP Dˆ Ei Ætà B]\I=B*Ö>Q¯¨¿zH ¿æ}–# Ëê¼òîU¿æ£Þ¿üë½QY6½m±a<Õ,H¼Ó+ÝUm[UmbÁÀ AP Á` DŠ Ee Ætà B]i==_=>U¨í¿zâ¿æz¨# Èð¼ñ°r¿æ¡¿Ï½Pº
½#¨<Ë*4¼«#ŒUüUžÁp A# Á Dˆ Ej Æu  B]v?=B§2>R1?¿z#Õ¿æw–# Ã¥¼ò_ä¿æž:¿½QU½T¬-;¬#ür2OUÐbUÐiÁ˜ À€ À  DŠ Ee Æt# B]‚ù=>
2>We`¿yýŠ¿æt# À¨¼ò8^¿æš×¿)ü½PýR½;¦û<&"ƒ¼—eV ñV øÁ` Á Dˆ Ek Æt  B]²=3]T>Um¿z n¿æwú# »×¼òm¥¿æžó¿=#½Q—½…ÛÏ=œ`¼É)ÉV1zV1€Áð A˜ ÁP D‚ Eh ÆsÀ B]œl=TVî>Sn‹¿z!½¿æx‹# ¶š¼óá¿æŸÀ¿R?½QÐõ½ƒ[I<ó2„¼É)ÉVbVb
Áè A€ ÁP D“ Ef ÆsÀ B]©'=/L>S3c¿zA¿æuz# °ë¼òÈÏ¿æœì¿hû½QDJ½O«#<:&¬¼Ý-ñV’”V’›Á ?€ Áp D€ Ef Æt# B]µá=>Q‰>V°f¿z¿æt¸# ­M¼òοæœS¿wx½Pë½6¥ñ;Ô,¼¿'µVÃVÃ&ÁP À# Á# Dˆ Ej Æt` B]Ã=H8ª>Oçþ¿zZþ¿æsõ# §õ¼ñ憿æ›Ê¿ŒÝ½PÒ†½ƒ[I<…¦¼¿'µVõ”Võ›Áè #  Á# DŒ Ea Ær€ B]ÏÑ=>y>OßN¿zc¿æké# £ø¼ò<¿æ“鿜սPY­7=!¡”¼PW&W&Á  AÀ Àà Dˆ Ec Ætà B]ÜŒ=/üs>Yâ¿yñ'¿æo;# žV¼òJ¿æ—z¿³`½Pá½w³u=›V¼¡!xWV¤WVªÁÐ A Á D€ Ek ÆrÀ B]éE=I—S>i&y¿xõ¿æwË# ˜h¼ñÅ„¿æ I¿Ë½PÀÒ½]^:Ð+#¼«#ŒW‡,W‡2 Àà Á D E Æu B]õú=LÑA>Q,!¿zFf¿æ‚N# ’¼ò!]¿æ«¿äK½Pî1½’^h<N*Ô½œ+W·£W·©Â # Á  D Ec€ ÆsÀ B^²=:´l>Yù&¿yÜP¿æ<# ‹|¼ò¿æ¹J¿þÚ½Pàø½]^<Ë*4¼Ý-ñWè*Wè1 A# Áp D† Em ÆsÀ B^î=8Ì>cBs¿yY8¿æ©V# ‰¼ó<ž¿æÒ}¿T½Q{½;¦û<»¼ñ2X§X®Á` #À Áˆ D† Ex€ Æu B^£=^Ý`>Jþ#¿zˆZ¿æüÎ# †Ì¼ô¦9¿ç&¿¤½R/³¼×,³<·&¼PXKXK%# A Àà D™ E^€ Æu  B^)`=>
2>We`¿yýŠ¿ç^# ¼òŠú¿ç,Ù¿&ͽQ!·½”Þì<…¦½›!X{´X{»Â #  Á˜ Dˆ Ek Æt  B^6=Ifž>S,ƒ¿z.C¿ç"# }]¼òx¶¿ç+Ì¿7b½Q/½’^h<Õ,H¼^.&

Answer 1

The fread function should do the trick:
http://www.mathworks.com/help/matlab/ref/fread.html
You could use the following:
binData = fread(fileID, sizeA, '*bit8', 0, 'b');
To get the sizeA of the file, try the answer to this question:
How do you get the size of a file in MATLAB?
Use the s output from dir:
s = dir(filename);