blob: 157885df368bb86fd4691434b7eed424b529aeed (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* Version of the Analog test,
* Intended for use by devices which
* don't have analog out.
*
* Connect 'control' to pin 21 of an mbed LPC1768
* Connect 'analogInput' to pin 18 of an mbed LPC1768
* Connect 'TX/RX' to pins 27 and 28 of an mbed LPC1768
*
* Upload:
*/
#include "test_env.h"
#define ERROR_TOLERANCE 0.05
#if defined(TARGET_LPC1114)
AnalogIn analogInput(dp4);
DigitalOut control(dp5);
DigitalOut indicator(LED1);
#else
#endif
uint8_t successes = 0;
int main() {
control = 0;
for (int i = 0; i < 10; i++) {
// Read value,
float expectedValue = i * 0.1;
float value = analogInput.read();
if (value > expectedValue + ERROR_TOLERANCE || value < expectedValue - ERROR_TOLERANCE) {
// Failure.
printf("ERROR (out:%.4f) - (in:%.4f) = (%.4f)"NL, expectedValue, value, fabs(expectedValue - value));
}
else {
printf("OK (out:%.4f) - (in:%.4f) = (%.4f)"NL, out_value, in_value, diff);
successes++;
}
control = 1;
indicator = 1;
wait(0.1);
control = 0;
indicator = 0;
}
if (successes > 8) {
notify_success(true);
}
else {
notify_success(false);
}
}
|
