diff options
Diffstat (limited to 'contrib/bin2intelhex/bin2intelhex.c')
| -rw-r--r-- | contrib/bin2intelhex/bin2intelhex.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/contrib/bin2intelhex/bin2intelhex.c b/contrib/bin2intelhex/bin2intelhex.c new file mode 100644 index 00000000..75b88c15 --- /dev/null +++ b/contrib/bin2intelhex/bin2intelhex.c @@ -0,0 +1,148 @@ +/* name : bin2intelhex.c + * from : Jean Marc Lacroix <jeanmarc.lacroix@free.fr> + * date : 06/12/1997. + * abstract : Y have rewrite this program from ????? with some modifications + * to add : + * - the Intel specification. + * - correct a bug because my prom programmer don't understand the + * initial format. Y suspect a bug in the calcul of the lrc + * in the original program. + * - correct the format of printf . In the original program, it was + * %x, and it is in fact %X, because in the Intel Format, all the + * char are in upper case. + * - correct the lrc calculation. + * usage: + *------- + * this program read the standard input and put to the standard output + * the result of the conversion. + * an example of use : + * cat my_bin | bin2intelhex > my_bin.hex or..... + * bin2intelhex < my_bin > my_bin.hex + */ + + +/* + * $Id$ + * $Log$ + * Revision 1.1 2005/05/17 16:45:06 mcb30 + * Initial revision + * + * Revision 1.9 1997/12/14 05:14:54 install + * - some documentation.... + * + */ + +#include <stdio.h> +#include <unistd.h> + +/* Intel Hex format specifications + +The 8-bit Intel Hex File Format is a printable ASCII format consisting of one + or more data records followed by an end of file record. Each +record consists of one line of information. Data records may appear in any + order. Address and data values are represented as 2 or 4 hexadecimal +digit values. + +Record Format +:LLAAAARRDDDD......DDDDCC + + +LL +AAAA +RR +DD +CC +Length field. Number of data bytes. +Address field. Address of first byte. +Record type field. 00 for data and 01 for end of record. +Data field. +Checksum field. One's complement of length, address, record type and data + fields modulo 256. +CC = LL + AAAA + RR + all DD = 0 + +Example: +:06010000010203040506E4 +:00000001FF + +The first line in the above example Intel Hex file is a data record addressed + at location 100H with data values 1 to 6. The second line is the end +of file record, so that the LL field is 0 + +*/ + + +typedef unsigned char t_u8; +typedef unsigned short t_u16; +/* + * the choice for the total length (16) of a line, but the specification + * can support an another value + */ +#define LL_MAX_LINE 16 +typedef struct +{ + t_u8 intel_lg_data; + t_u16 intel_adr; + t_u8 intel_type; + t_u8 intel_data [LL_MAX_LINE]; + t_u8 intel_lrc; +} t_one_line; +#define INTEL_DATA_TYPE 0 +#define EXIT_OK 0 +int main (const int argc, const char ** const argv) +{ + t_one_line line; + /* + * init for the adress, please note that it is assume that the program begin at 0 + */ + line.intel_adr = 0; + line.intel_type = INTEL_DATA_TYPE; + /* + * read the data on the standard input + */ + while ((line.intel_lg_data = read (0, &line.intel_data [0] ,LL_MAX_LINE )) > 0) + { + t_u8 i; + /* + * and now for this line, calculate the lrc. + */ + line.intel_lrc = line.intel_lg_data; + line.intel_lrc += ((line.intel_adr >> 8) & 0xff); + line.intel_lrc += (line.intel_adr &0xff); + line.intel_lrc += line.intel_type; + /* + * the structure is ready, print it to stdout in the + * right format + */ + (void) printf (":%02X%04X%02X", + line.intel_lg_data, + line.intel_adr, + line.intel_type); + /* + * edit all the data read + */ + for (i=0; i<line.intel_lg_data; i++) + { + (void) printf ("%02X", + (line.intel_data [i] & 0xff)); + /* + * add to the lrc the data print + */ + line.intel_lrc +=line.intel_data [i]; + } + /* + * edit the value of the lrc and new line for the next + */ + (void) printf ("%02X\n", + (0x100 - line.intel_lrc) & 0xff); + /* + * prepare the new adress for the next line + */ + line.intel_adr+=line.intel_lg_data; + } + /* + * print the last line with a length of 0 data, so that the lrc is easy to + * calculate (ff+01 =0) + */ + printf (":00000001FF\n"); + exit (EXIT_OK); +} |