/
test_SAMO_01.py
303 lines (252 loc) · 7.92 KB
/
test_SAMO_01.py
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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
# test main board
# -*- coding: utf-8 -*-
# COPYRIGHT: Openmoko Inc. 2009
# LICENSE: GPL Version 2 or later
# DESCRIPTION: Main board test
# AUTHOR: Christopher Hall <hsw@openmoko.com>
import Keithley
import Agilent
import RelayBoard
import communication
import process
import sys
import time
if 'serial_number' in global_args:
serial_number = global_args['serial_number']
else:
serial_number = 'No Serial Number'
psu = None
dvm = None
relay = None
RELAY_SERIAL = '/dev/ttyUSB0'
CPU_SERIAL = '/dev/ttyUSB2'
RELAY_VBATT = 1
RELAY_RESET = 2
RELAY_POWER_SWITCH = 3
RELAY_RANDOM_KEY = 4
RELAY_TREE_KEY = 5
RELAY_SEARCH_KEY = 6
RELAY_RXD = 7
RELAY_TXD = 8
RELAY_PROGRAM_FLASH = 9
RELAY_1V8 = 10
RELAY_3V = 11
RELAY_LCD_V0 = 12
RELAY_LCD_V1 = 13
RELAY_LCD_V2 = 14
RELAY_LCD_V3 = 15
RELAY_LCD_V4 = 16
# volts
LCD_V0 = 23.0
# power supply (volts, amps)
SUPPLY_STANDARD_VOLTAGE = 3.0
SUPPLY_CURRENT_LIMIT = 0.35
# ("text", relay_name, required_value, percent_low, percent_high)
VOLTAGE_LIST = (
("1V8", RELAY_1V8, 1.8, -5, 5),
("3V0", RELAY_3V, 3.0, -3, 10),
("V0 ", RELAY_LCD_V0, LCD_V0, -5, 5),
("V1 ", RELAY_LCD_V1, LCD_V0 * 14.0 / 15.0, -5, 5),
("V2 ", RELAY_LCD_V2, LCD_V0 * 13.0 / 15.0, -5, 5),
("V3 ", RELAY_LCD_V3, LCD_V0 * 2.0 / 15.0, -5, 5),
("V4 ", RELAY_LCD_V4, LCD_V0 * 1.0 / 15.0, -5, 5)
)
# amps
MAXIMUM_LEAKAGE_CURRENT = 0.002
MINIMUM_ON_CURRENT = 0.005
MAXIMUM_ON_CURRENT = 0.150
# seconds
MINIMUM_ON_TIME = 0.01
MAXIMUM_ON_TIME = 1.2
MINIMUM_OFF_TIME = 1.7
MAXIMUM_OFF_TIME = 4.0
ON_OFF_DELTA = 0.1
# 1/10 seconds
ON_OFF_SCAN = int(5 / ON_OFF_DELTA)
# function keys
KEY_LIST = [
('Random', RELAY_RANDOM_KEY, '0x02'),
('Tree', RELAY_TREE_KEY, '0x04'),
('Search', RELAY_SEARCH_KEY, '0x01')
]
def setUp():
"""Set up power supply and turn on
Also put a message on the PSU LCD to warn operator"""
global debug, psu, dvm, relay
info('setUp: **initialising**')
relay = RelayBoard.PIC16F873A(port = RELAY_SERIAL)
dvm = Agilent.DMM34401A()
dvm.setVoltageDC()
psu = Keithley.PSU2303()
psu.setCurrent(SUPPLY_CURRENT_LIMIT)
psu.setVoltage(SUPPLY_STANDARD_VOLTAGE)
psu.powerOff()
if debug:
psu.settings()
psu.measure()
psu.message('Test in progress Do NOT Touch ')
relay.on(RELAY_VBATT)
def tearDown():
"""Shutdown the power supply"""
global debug, psu, dvm, relay
relay.off(RELAY_VBATT)
psu.powerOff()
psu.setCurrent(0)
psu.setVoltage(0)
psu.messageOff()
info('tearDown: **cleanup**')
del psu
psu = None
del dvm
dvm = None
del relay
relay = None
def testZzz():
"""Run this last"""
pass
def test001_leakage():
"""Make sure power is off and no leakage"""
global debug, psu, dvm, relay
relay.off(RELAY_POWER_SWITCH)
time.sleep(0.2)
psu.powerOn()
time.sleep(0.5)
if debug:
psu.settings()
psu.measure()
i = psu.current
info('Leakage current = %7.3f mA @ %5.1f V' % (1000 * i, psu.voltage))
fail_if(abs(i) > MAXIMUM_LEAKAGE_CURRENT, "Leakage current %7.3f mA is too high" % (i * 1000))
def test002_on():
"""Turn on power and wait for current to rise"""
global debug, psu, dvm, relay
relay.set(RELAY_PROGRAM_FLASH)
relay.set(RELAY_POWER_SWITCH)
relay.update()
t = time.time()
for i in range(ON_OFF_SCAN):
if psu.current >= MINIMUM_ON_CURRENT:
break
time.sleep(ON_OFF_DELTA)
t = time.time() - t
relay.off(RELAY_POWER_SWITCH)
time.sleep(0.5)
info('On current = %7.3f mA @ %5.1f V' % (1000 * psu.current, psu.voltage))
fail_unless(psu.current >= MINIMUM_ON_CURRENT, "Failed to Power On")
fail_if(t < MINIMUM_ON_TIME, "On too short, %5.1f s < %5.1f" % (t, MINIMUM_ON_TIME))
fail_if(t > MAXIMUM_ON_TIME, "On too long, %5.1f s > %5.1f" % (t, MAXIMUM_ON_TIME))
def test003_check_current():
"""Monitor current to check if correct"""
global debug, psu, dvm, relay
averageCurrent = 0.0
samples = 20
for i in range(samples):
if debug:
psu.measure()
time.sleep(0.1)
i = psu.current
averageCurrent = averageCurrent + i
info('Supply current = %7.3f mA @ %5.1f V' % (1000 * i, psu.voltage))
fail_unless(abs(i) > MINIMUM_ON_CURRENT, "Device failed to power up")
fail_if(abs(i) > MAXIMUM_ON_CURRENT, "Device current too high")
info('Average supply current = %7.3f mA @ %5.1f V' % (1000 * averageCurrent / samples, psu.voltage))
def test004_measure_voltages():
"""Measure voltages"""
global debug, psu, dvm, relay
for item in VOLTAGE_LIST:
v = item[0]
r = item[1]
min = item[2] * (100 + item[3]) / 100
max = item[2] * (100 + item[4]) / 100
relay.on(r)
time.sleep(0.5)
actual = dvm.voltage
info('%s = %7.3f V' % (v, actual))
fail_if(actual < min, "Low Voltage %s = %7.3f < %7.3f" % (v, actual, min))
fail_if(actual > max, "High Voltage %s = %7.3f > %7.3f" % (v, actual, max))
relay.off(r)
time.sleep(0.5)
def test005_power_off():
"""Check power off function"""
global debug, psu, dvm, relay
relay.clear(RELAY_PROGRAM_FLASH)
relay.set(RELAY_POWER_SWITCH)
relay.update()
t = time.time()
for i in range(ON_OFF_SCAN):
if psu.current < MINIMUM_ON_CURRENT:
break
time.sleep(ON_OFF_DELTA)
t = time.time() - t
relay.off(RELAY_POWER_SWITCH)
time.sleep(2)
i = psu.current
fail_unless(abs(i) < MAXIMUM_LEAKAGE_CURRENT, "Failed to power off , %7.3f mA" % (i * 1000))
fail_if(t < MINIMUM_OFF_TIME, "Off too short, %5.1f s < %5.1f" % (t, MINIMUM_OFF_TIME))
fail_if(t > MAXIMUM_OFF_TIME, "Off too long, %5.1f s > %5.1f" % (t, MAXIMUM_OFF_TIME))
def test006_on():
"""Turn on power and wait for current to rise"""
global debug, psu, dvm, relay
test002_on()
def test007_program_flash():
"""Program the boot loader into FLASH memory"""
global debug, psu, dvm, relay
relay.set(RELAY_RESET)
relay.set(RELAY_PROGRAM_FLASH)
relay.set(RELAY_RXD)
relay.set(RELAY_TXD)
relay.update()
def callback(s):
global debug, psu, dvm, relay
i = psu.current
info('Supply current = %7.3f mA' % (1000 * i))
info(s.replace('\10', '')) # remove backspaces
if 'Press Reset' == s.strip():
relay.on(RELAY_RESET)
time.sleep(0.2)
relay.off(RELAY_RESET)
p = process.Process(['make', 'flash-mbr', 'BOOTLOADER_TTY=' + CPU_SERIAL,
"SERIAL_NUMBER='" + serial_number + "'"], callback)
rc = p.run()
fail_unless(rc, 'Flashing failed')
relay.off(RELAY_PROGRAM_FLASH)
def test008_keys():
"""Test the three function keys"""
global debug, psu, dvm, relay
p = communication.SerialPort(port = CPU_SERIAL)
relay.on(RELAY_RESET)
relay.clear(RELAY_PROGRAM_FLASH)
relay.clear(RELAY_RANDOM_KEY)
relay.clear(RELAY_TREE_KEY)
relay.clear(RELAY_SEARCH_KEY)
relay.set(RELAY_RXD)
relay.set(RELAY_TXD)
relay.update()
time.sleep(0.2)
relay.off(RELAY_RESET)
p.waitFor('menu?')
p.send('d')
for desc, r, k in KEY_LIST:
relay.off(r)
p.waitFor('keys = ')
key = p.read(4)
info('key (none) = %s' % key)
fail_unless('0x00' == key, 'Invalid keys: wanted %s, got %s' % ('0x00', key))
relay.on(r)
p.waitFor('keys = ')
key = p.read(4)
i = psu.current
info('Supply current = %7.3f mA' % (1000 * i))
info('key (%s)[%s] = %s' % (desc, k, key))
fail_unless(k == key, 'Invalid keys: wanted %s, got %s' % (k, key))
relay.off(r)
p.waitFor('keys = ')
key = p.read(4)
info('key (none) = %s' % key)
fail_unless('0x00' == key, 'Invalid keys: wanted %s, got %s' % ('0x00', key))
del p
p = None
def test009_power_off():
"""Check power off function"""
global debug, psu, dvm, relay
test005_power_off()