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
|
"""
# TOP Open Source programming suite
#
# TOP853 Lowlevel hardware access
#
# Copyright (c) 2022 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
from libtoprammer.util import *
from libtoprammer.hardware_access_usb import *
class HardwareAccess(HardwareAccessUSB):
"TOP853 hardware access"
def __init__(self, foundUSBDev, noQueue=False, doRawDump=False):
HardwareAccessUSB.__init__(self,
usbdev = foundUSBDev.usbdev,
maxPacketBytes = 64,
noQueue = noQueue,
doRawDump = doRawDump)
def getOscillatorHz(self):
"Get the 'OSC' frequency."
return 8000000
def getBufferRegSize(self):
"Get the buffer register size, in bytes."
return 64
def readBufferReg(self, nrBytes):
"Reads and returns the buffer register from hardware."
self.queueCommand(int2byte(0x07))
return self.receive(self.getBufferRegSize())[:nrBytes]
def hardwareInit(self):
"Initialize the hardware."
self.queueCommand(b"\x0D")
if self.readBufferReg(3) != b"\x69\x0C\x02":
print("Init: Unexpected status (a)")
self.runCommandSync(b"\x0E\x2C\x01\x00")
for i in range(0x18):
self.queueCommand(b"\x3E" + int2byte(i))
if self.readBufferReg(4) != b"\x24\x37\x55\x04":
print("Init: Unexpected status (b)")
self.setVPPVoltage(0)
for i in range(0x18):
self.queueCommand(b"\x3E" + int2byte(i))
if self.readBufferReg(4) != b"\x24\x37\x55\x04":
print("Init: Unexpected status (c)")
self.setVPPVoltage(12)
self.runCommandSync(b"\x0E\x20\x00\x00")
self.__delay_10msec(sync=True)
self.runCommandSync(b"\x0E\x13\x00\x00")
self.__delay_10msec(sync=True)
self.runCommandSync(b"\x0A\x1D\x86")
self.flushCommands()
self.loadGNDLayout(0)
self.loadVPPLayout(0)
self.loadVCCLayout(0)
for i in range(0x18):
self.queueCommand(b"\x3E" + int2byte(i))
if self.readBufferReg(4) != b"\x24\x37\x55\x04":
print("Init: Unexpected status (c)")
self.setVPPVoltage(12)
self.runCommandSync(b"\x0E\x20\x00\x00")
self.__delay_10msec(sync=True)
for _ in range(2):
self.queueCommand(b"\x57\x00\x50")
if self.readBufferReg(4) != b"\xB0\x37\x55\x04":
print("Init: Unexpected status (d)")
for i in range(0x18):
self.queueCommand(b"\x3E" + int2byte(i))
if self.readBufferReg(4) != b"\x24\x37\x55\x04":
print("Init: Unexpected status (c)")
for i in range(0x20, 0x24):
self.runCommandSync(b"\x57\x00" + int2byte(i))
if self.readBufferReg(4) != b"\x80\xBE\x90\x00":
print("Init: Unexpected status (e)")
for i in range(0x40, 0x60):
self.runCommandSync(b"\x57\x00" + int2byte(i))
if self.readBufferReg(32) != b"\x54\x15\x62\x9E\x6E\xCB\xED\x5D\x15\x32\x70\x81\x05\xF9\x4F\x2E\xB0\x3C\x7E\x7B\x02\x40\x0B\x48\x28\x78\x63\x1D\x0C\x39\x3B\x79":
print("Init: Unexpected status (f)")
self.queueCommand(b"\x4F\x02\x00\x00")
if self.readBufferReg(32) != b"\x48\xFF\x6F\x06\x49\x65\x52\x57\x52\x15\x20\x87\x05\xF9\x4F\x2E\xB0\x3C\x7E\x7B\x02\x40\x0B\x48\x28\x78\x63\x1D\x0C\x39\x3B\x79":
print("Init: Unexpected status (g)")
self.runCommandSync(b"\x0E\x10\x00\x00")
self.runCommandSync(b"\x0E\x2D\x01\x00" + b"\x00\x00" + (b"\x33" * 57))
self.runCommandSync(b"\x0E\x2D\x02\x00" + (b"\x33" * 56))
self.runCommandSync(b"\x0E\x2D\x03\x00" + b"\x28" + (b"\x33" * 31) + b"\x00\x00\x00\x00")
self.loadGNDLayout(20)
for i in range(0x18):
self.queueCommand(b"\x3E" + int2byte(i))
if self.readBufferReg(4) != b"\x24\x37\x55\x04":
print("Init: Unexpected status (h)")
self.setVPPVoltage(12)
# import libtoprammer.top853.sniffer as sniffer
# sniffer.sniffVPP(self)
#TODO
self.flushCommands()
assert 0#XXX
def readVersionString(self):
"Returns the device ID and versioning string."
self.queueCommand(b"\x0E\x11\x00\x00")
data = self.readBufferReg(32)
return data.decode("ASCII", "ignore").replace("\x00", "").strip()
def getFPGAType(self):
"Get the FPGA architecture."
return None # The hardware doesn't have an FPGA.
def getFPGAMaxConfigChunkSize(self):
raise NotImplementedError
def FPGAInitiateConfig(self):
raise NotImplementedError
def FPGAUploadConfig(self, offset, data):
raise NotImplementedError
def makeFPGAAddr(self, address):
raise NotImplementedError
def FPGARead(self, address):
raise NotImplementedError
def FPGAWrite(self, address, byte):
raise NotImplementedError
def loadGNDLayout(self, layout):
"Load the GND configuration into the shift registers."
cmd = int2byte(0x0E) + int2byte(0x16) +\
int2byte(layout) + int2byte(0)
self.queueCommand(cmd)
self.delay(0.01)
self.flushCommands(0.15)
def setVPPVoltage(self, voltage):
"Set the VPP voltage. voltage is a floating point voltage number."
for centivolt in (0, int(voltage * 10)):
cmd = int2byte(0x0E) + int2byte(0x0F) +\
int2byte(centivolt) + int2byte(0)
self.queueCommand(cmd)
self.delay(0.01)
def loadVPPLayout(self, layout):
"Load the VPP configuration into the shift registers."
cmd = int2byte(0x0E) + int2byte(0x14) +\
int2byte(layout) + int2byte(0)
self.queueCommand(cmd)
self.delay(0.01)
self.flushCommands(0.15)
def setVCCVoltage(self, voltage):
"Set the VCC voltage. This is a no-op. The programmer can only do 5V."
assert voltage == 0 or voltage == 5
self.flushCommands()
def loadVCCLayout(self, layout):
"Load the VCC configuration into the shift registers."
cmd = int2byte(0x0E) + int2byte(0x15) +\
int2byte(layout) + int2byte(0)
self.queueCommand(cmd)
self.delay(0.01)
self.flushCommands(0.15)
def enableZifPullups(self, enable):
#TODO
"Enable the ZIF socket signal pullups."
param = 1 if enable else 0
cmd = int2byte(0x0E) + int2byte(0x28) +\
int2byte(param) + int2byte(0)
self.queueCommand(cmd)
def __delay_4usec(self):
#TODO
self.queueCommand(int2byte(0x00))
def __delay_10msec(self, sync=False):
#TODO
if sync:
self.runCommandSync(int2byte(0x1B))
else:
self.queueCommand(int2byte(0x1B))
def delay(self, seconds):
"Perform an on-device or host delay."
if seconds >= 0.5:
# Perform long delays on the host
self.flushCommands(seconds)
elif seconds > 0.000255:
# Need to round up to ten milliseconds
millisecs = int(math.ceil(seconds * 1e3))
millisecs = roundup(millisecs, 10)
for _ in range(millisecs // 10):
self.__delay_10msec()
else:
# Round up to 4 usec boundary
microsecs = int(math.ceil(seconds * 1e6))
microsecs = roundup(microsecs, 4)
for _ in range(microsecs // 4):
self.__delay_4usec()
|
