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ADC: show timing information in ADC test

This commit is contained in:
Andrew Tridgell 2011-09-16 16:52:29 +10:00
parent 4a7c9c406f
commit 1b5c7e8a90
1 changed files with 32 additions and 1 deletions
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33
libraries/AP_ADC/examples/AP_ADC_test/AP_ADC_test.pde
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@ -26,7 +26,29 @@ static const uint8_t channel_map[6] = { 1, 2, 0, 4, 5, 6};
float v; float v;
uint32_t last_usec = 0; uint32_t last_usec = 0;
void loop() static void show_timing()
{
uint32_t mint = (uint32_t)-1, maxt = 0, totalt=0;
uint32_t start_time = millis();
uint16_t result[6];
uint32_t count = 0;
Serial.println("Starting timing test");
adc.Ch6(channel_map, result);
do {
uint32_t deltat = adc.Ch6(channel_map, result);
if (deltat > maxt) maxt = deltat;
if (deltat < mint) mint = deltat;
totalt += deltat;
count++;
} while ((millis() - start_time) < 5000);
Serial.printf("timing: mint=%lu maxt=%lu avg=%lu\n", mint, maxt, totalt/count);
}
static void show_data()
{ {
uint16_t result[6]; uint16_t result[6];
uint32_t deltat = 0; uint32_t deltat = 0;
@ -61,3 +83,12 @@ void loop()
ch3, (unsigned)(deltat/1000)); ch3, (unsigned)(deltat/1000));
} }
void loop()
{
if (millis() < 5000) {
show_timing();
} else {
show_data();
}
}