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AP_Param: eedump_apparam match Param_header and sentinals to AP_Param.h

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Josh Henderson 2021-10-30 15:39:59 -04:00 committed by Andrew Tridgell
parent 581629b332
commit 38ef0fd4fa
1 changed files with 19 additions and 9 deletions
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28
libraries/AP_Param/tools/eedump_apparam.c
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@ -1,7 +1,15 @@
/* /*
* Simple tool to dump the AP_Param contents from an EEPROM dump * Simple tool to dump the AP_Param contents from an EEPROM dump
* Andrew Tridgell February 2012 * Andrew Tridgell February 2012
*/ *
* Build Command (Assuming starting directory is ardupilot)
* gcc -o eedump_ap_param libraries/AP_Param/tools/eedump_apparam.c
* gcc -g -o eedump_ap_param libraries/AP_Param/tools/eedump_apparam.c // With Debugging symbols
*
* How to Use?
* ./eedump_ap_param eeprom.bin
*/
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdint.h> #include <stdint.h>
@ -35,15 +43,16 @@ static const char *type_names[8] = {
}; };
struct Param_header { struct Param_header {
uint32_t key : 8; // to get 9 bits for key we needed to split it into two parts to keep binary compatibility
uint32_t type : 6; uint32_t key_low : 8;
uint32_t type : 5;
uint32_t key_high : 1;
uint32_t group_element : 18; uint32_t group_element : 18;
}; };
static const uint16_t _sentinal_key = 0x1FF;
static const uint8_t _sentinal_key = 0xFF; static const uint8_t _sentinal_type = 0x1F;
static const uint8_t _sentinal_type = 0xFF; static const uint8_t _sentinal_group = 0xFF;
static const uint8_t _sentinal_group = 0xFF;
static uint8_t type_size(enum ap_var_type type) static uint8_t type_size(enum ap_var_type type)
{ {
@ -110,15 +119,16 @@ main(int argc, char *argv[])
index = sizeof(*header); index = sizeof(*header);
for (;; ) { for (;; ) {
uint8_t size; uint8_t size;
const uint16_t key = ((uint16_t)var->key_high)<<8 | var->key_low;
var = (struct Param_header *)&eeprom[index]; var = (struct Param_header *)&eeprom[index];
if (var->key == _sentinal_key || if (key == _sentinal_key ||
var->type == _sentinal_type) { var->type == _sentinal_type) {
printf("end sentinel at %u\n", index); printf("end sentinel at %u\n", index);
break; break;
} }
size = type_size(var->type); size = type_size(var->type);
printf("%04x: type %u (%s) key %u group_element %u size %d value ", printf("%04x: type %u (%s) key %u group_element %u size %d value ",
index, var->type, type_names[var->type], var->key, var->group_element, size); index, var->type, type_names[var->type], key, var->group_element, size);
index += sizeof(*var); index += sizeof(*var);
switch (var->type) { switch (var->type) {
case AP_PARAM_INT8: case AP_PARAM_INT8: