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Code Issues Wiki Activity

Beep as logging begins to use as a synchronisation point for video

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This commit is contained in:
Nicholas Sherlock 2014-12-29 01:41:13 +13:00
parent 6d3ad4a2de
commit 566bd561dc
3 changed files with 42 additions and 1 deletions
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35
src/main/blackbox/blackbox.c
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@ -35,6 +35,7 @@
#include "drivers/pwm_rx.h"
#include "drivers/accgyro.h"
#include "drivers/light_led.h"
#include "drivers/sound_beeper.h"
#include "common/printf.h"
@ -228,6 +229,7 @@ typedef enum BlackboxState {
BLACKBOX_STATE_SEND_GPS_H_HEADERS,
BLACKBOX_STATE_SEND_GPS_G_HEADERS,
BLACKBOX_STATE_SEND_SYSINFO,
BLACKBOX_STATE_PRERUN,
BLACKBOX_STATE_RUNNING
} BlackboxState;
@ -1045,6 +1047,10 @@ static bool sendFieldDefinition(const char * const *headerNames, unsigned int he
return headerXmitIndex < headerCount;
}
/**
* Transmit a portion of the system information headers. Begin with a xmitIndex of 0. Returns the next xmitIndex to
* call with, or -1 if transmission is complete.
*/
static int blackboxWriteSysinfo(int xmitIndex)
{
union floatConvert_t {
@ -1104,12 +1110,32 @@ static int blackboxWriteSysinfo(int xmitIndex)
// One more pause for good luck
break;
default:
blackboxSetState(BLACKBOX_STATE_RUNNING);
return -1;
}
return xmitIndex + 1;
}
// Beep the buzzer and write the current time to the log as a synchronization point
static void blackboxPlaySyncBeep()
{
uint32_t now = micros();
/*
* The regular beep routines aren't going to work for us, because they queue up the beep to be executed later.
* Our beep is timing sensitive, so start beeping now without setting the beeperIsOn flag.
*/
BEEP_ON;
// Have the regular beeper code turn off the beep for us eventually, since that's not timing-sensitive
queueConfirmationBeep(1);
blackboxWrite('E');
blackboxWrite(FLIGHT_LOG_EVENT_SYNC_BEEP);
writeUnsignedVB(now);
}
void handleBlackbox(void)
{
int i;
@ -1157,6 +1183,13 @@ void handleBlackbox(void)
case BLACKBOX_STATE_SEND_SYSINFO:
//On entry of this state, headerXmitIndex is 0
headerXmitIndex = blackboxWriteSysinfo(headerXmitIndex);
blackboxSetState(BLACKBOX_STATE_PRERUN);
break;
case BLACKBOX_STATE_PRERUN:
blackboxPlaySyncBeep();
blackboxSetState(BLACKBOX_STATE_RUNNING);
break;
case BLACKBOX_STATE_RUNNING:
// On entry to this state, blackboxIteration, blackboxPFrameIndex and blackboxIFrameIndex are reset to 0