Re: getting at individual bits inside byte field: struct module : bitwise operator

2009-02-23 Thread harijay
Thanks Gabriel , MRAB and Mark Instead of using the bitwise operator on the unpacked data I was trying to do a bitwise operator directly after read. This was giving the unsupported operand error i.e # version in my code - wrong file.read(2) & 0x001f Instead of # version in my example and now i

Re: getting at individual bits inside byte field: struct module : bitwise operator

2009-02-23 Thread Mark Tolonen
"harijay" wrote in message news:4c7d58a1-830f-4f02-ba07-aa4910f5f...@b16g2000yqb.googlegroups.com... In my last post I had asked about reading data from a binary file using the struct module. Thanks to some excellent help , I have managed to read in successfully most of the header of this bina

Re: getting at individual bits inside byte field: struct module : bitwise operator

2009-02-23 Thread Gabriel Genellina
En Mon, 23 Feb 2009 22:18:31 -0200, harijay escribió: mentioned here : ( http://www.dataq.com/support/techinfo/ff.htm) I have a question about how to bitmask a bunch of bytes read in from such a binary formatted file . For eg the spec says the first two bytes have different parameters in diff

Re: getting at individual bits inside byte field: struct module : bitwise operator

2009-02-23 Thread MRAB
harijay wrote: In my last post I had asked about reading data from a binary file using the struct module. Thanks to some excellent help , I have managed to read in successfully most of the header of this binary format that I want to parse. These are some time-voltage traces from a digital to ana

getting at individual bits inside byte field: struct module : bitwise operator

2009-02-23 Thread harijay
In my last post I had asked about reading data from a binary file using the struct module. Thanks to some excellent help , I have managed to read in successfully most of the header of this binary format that I want to parse. These are some time-voltage traces from a digital to analog converter for