Mirror/ardupilot
5
0
Fork 0
mirror of https://github.com/ArduPilot/ardupilot synced 2025-02-23 16:23:56 -04:00
Code Issues Packages Projects Releases Wiki Activity

AP_Param: cleanup the eeprom parsing tools and fixed sentinal detection

Browse Source
This commit is contained in:
Andrew Tridgell 2021-04-20 12:08:44 +10:00
parent eac027b5c5
commit 62e0a89036
4 changed files with 0 additions and 214 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

82
libraries/AP_Param/tools/eedump.c
View File

@ -1,82 +0,0 @@
/*
* Simple tool to dump the AP_Var contents from an EEPROM dump
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
uint8_t eeprom[0x1000];
struct PACKED EEPROM_header {
uint16_t magic;
uint8_t revision;
uint8_t spare;
};
static const uint16_t k_EEPROM_magic = 0x5041;
static const uint16_t k_EEPROM_revision = 2;
struct PACKED Var_header {
uint8_t size : 6;
uint8_t spare : 2;
uint8_t key;
};
static const uint8_t k_key_sentinel = 0xff;
void
fail(const char *why)
{
fprintf(stderr, "ERROR: %s\n", why);
exit(1);
}
int
main(int argc, char *argv[])
{
FILE *fp;
struct EEPROM_header *header;
struct Var_header *var;
unsigned index;
unsigned i;
if (argc != 2) {
fail("missing EEPROM file name");
}
if (NULL == (fp = fopen(argv[1], "rb"))) {
fail("can't open EEPROM file");
}
if (1 != fread(eeprom, sizeof(eeprom), 1, fp)) {
fail("can't read EEPROM file");
}
fclose(fp);
header = (struct EEPROM_header *)&eeprom[0];
if (header->magic != k_EEPROM_magic) {
fail("bad magic in EEPROM file");
}
if (header->revision != 2) {
fail("unsupported EEPROM format revision");
}
printf("Header OK\n");
index = sizeof(*header);
for (;; ) {
var = (struct Var_header *)&eeprom[index];
if (var->key == k_key_sentinel) {
printf("end sentinel at %u\n", index);
break;
}
printf("%04x: key %u size %d\n ", index, var->key, var->size + 1);
index += sizeof(*var);
for (i = 0; i <= var->size; i++) {
printf(" %02x", eeprom[index + i]);
}
printf("\n");
index += var->size + 1;
if (index >= sizeof(eeprom)) {
fflush(stdout);
fail("missing end sentinel");
}
}
}

47
libraries/AP_Param/tools/eedump.pl
View File

@ -1,47 +0,0 @@
#!/usr/bin/perl
$file = $ARGV[0];
open(IN,$file) || die print "Failed to open file: $file : $!";
read(IN,$buffer,1);
read(IN,$buffer2,1);
if (ord($buffer) != 0x41 && ord($buffer2) != 0x50) {
print "bad header ". $buffer ." ".$buffer2. "\n";
exit;
}
read(IN,$buffer,1);
if (ord($buffer) != 2) {
print "bad version";
exit;
}
# spare
read(IN,$buffer,1);
$a = 0;
while (read(IN,$buffer,1)) {
$pos = (tell(IN) - 1);
$size = ((ord($buffer) & 63));
read(IN,$buffer,1);
if (ord($buffer) == 0xff) {
printf("end sentinel at %u\n", $pos);
last;
}
printf("%04x: key %u size %d\n ", $pos, ord($buffer), $size + 1);
for ($i = 0; $i <= ($size); $i++) {
read(IN,$buffer,1);
printf(" %02x", ord($buffer));
}
print "\n";
}
close IN;

1
libraries/AP_Param/tools/eedump_apparam.c
View File

@ -112,7 +112,6 @@ main(int argc, char *argv[])
uint8_t size;
var = (struct Param_header *)&eeprom[index];
if (var->key == _sentinal_key ||
var->group_element == _sentinal_group ||
var->type == _sentinal_type) {
printf("end sentinel at %u\n", index);
break;

84
libraries/AP_Param/tools/eedump_apparam.pl
View File

@ -1,84 +0,0 @@
#!/usr/bin/perl
$file = $ARGV[0];
open(IN,$file) || die print "Failed to open file: $file : $!";
read(IN,$buffer,1);
read(IN,$buffer2,1);
if (ord($buffer2) != 0x41 && ord($buffer) != 0x50) {
print "bad header ". $buffer ." ".$buffer2. "\n";
exit;
}
read(IN,$buffer,1);
if (ord($buffer) != 6) {
print "bad version";
exit;
}
# spare
read(IN,$buffer,1);
$a = 0;
while (read(IN,$buffer,1)) {
$pos = (tell(IN) - 1);
my $key = ord($buffer);
if ($key == 0xff) {
printf("end sentinel at %u\n", $pos);
last;
}
read(IN,$buffer2,1);
read(IN,$buffer3,1);
read(IN,$buffer4,1);
my $itype = ord($buffer2)&0x3F;
my $group_element = (ord($buffer2)>>6) | (ord($buffer3)<<8) | (ord($buffer4)<<16);
if ($itype == 0) { #none
$size = 0;
$type = "NONE";
} elsif ($itype == 1) { #int8
$size = 1;
$type = "INT8";
} elsif ($itype == 2) { #int16
$size = 2;
$type = "INT16";
} elsif ($itype == 3) { #int32
$size = 4;
$type = "INT32";
} elsif ($itype == 4) { #float
$size = 4;
$type = "FLOAT";
} elsif ($itype == 5) { #vector 3
$size = 3*4;
$type = "VECTOR3F";
} elsif ($itype == 6) { #vector6
$size = 6*4;
$type = "VECTOR6F";
} elsif ($itype == 7) { #matrix
$size = 3*3*4;
$type = "MATRIX6F";
} elsif ($itype == 8) { #group
$size = 0;
$type = "GROUP";
} else {
print "Unknown type\n";
$size = 0;
}
printf("%04x: type %u ($type) key %u group_element %u size %d\n ", $pos, $itype, $key, $group_element, $size);
for ($i = 0; $i < ($size); $i++) {
read(IN,$buffer,1);
printf(" %02x", ord($buffer));
}
print "\n";
}
close IN;