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fw/diag.c: fix and improve DIAG function

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- we didn't send ACKs for the authentication packets
- take multiple samples (4)
- add 100 ms delay to let the battery voltage settle
This commit is contained in:
Werner Almesberger 2012-07-01 11:53:51 -03:00
parent f5b85a464e
commit 43686321a7
2 changed files with 21 additions and 13 deletions
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32
fw/diag.c
View File

@ -16,6 +16,8 @@
#include <string.h> #include <string.h>
#include <avr/interrupt.h> #include <avr/interrupt.h>
#define F_CPU 8000000UL
#include <util/delay.h>
#include "hash.h" #include "hash.h"
#include "proto.h" #include "proto.h"
@ -33,17 +35,22 @@ static bool failed;
static void do_diag(void) static void do_diag(void)
{ {
uint8_t pkg[7] = { DIAG_ACK, 0, 0, }; uint8_t pkg[3+4*DIAG_SAMPLES] = { DIAG_ACK, 4, 0, };
uint8_t *p = pkg+3;
uint16_t v; uint16_t v;
uint8_t i;
cli(); cli();
set_line(localize_line(tmp[0], tmp[1])); set_line(localize_line(tmp[0], tmp[1]));
v = measure_ref(1); _delay_ms(100);
pkg[3] = v; for (i = 0; i != DIAG_SAMPLES; i++) {
pkg[4] = v >> 8; v = measure_ref(1);
v = measure_ref(0); *p++ = v;
pkg[5] = v; *p++ = v >> 8;
pkg[6] = v >> 8; v = measure_ref(0);
*p++ = v;
*p++ = v >> 8;
}
set_line(localize_line(0, 0)); set_line(localize_line(0, 0));
sei(); sei();
rf_send(pkg, sizeof(pkg)); rf_send(pkg, sizeof(pkg));
@ -63,13 +70,12 @@ static bool diag_more(uint8_t seq, uint8_t limit, const uint8_t *payload)
case 0: case 0:
if (!hash_eq(payload, PAYLOAD, PAYLOAD)) if (!hash_eq(payload, PAYLOAD, PAYLOAD))
failed = 1; failed = 1;
if (failed) if (!failed)
return 0; do_diag();
do_diag(); /* do_diag sends the ACK, not the dispatcher */
break; return 0;
} }
/* do_diag sends the ACK, not the dispatcher */ return 1;
return 0;
} }

2
fw/proto.h
View File

@ -39,6 +39,8 @@ enum pck_type {
#define MAX_LINES 80 #define MAX_LINES 80
#define DIAG_SAMPLES 4
#define XA_HIGH_DEFAULT 850 #define XA_HIGH_DEFAULT 850
#define XA_LOW_DEFAULT 170 #define XA_LOW_DEFAULT 170