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rasky
vSPI
Commits
beb5a7fe
Commit
beb5a7fe
authored
Feb 24, 2012
by
Mike Lyons
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Merge branch 'master' of github.com:mjlyons/vSPI
parents
fb592855
5e3a2e6b
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spitest.py
scripts/master/spitest.py
+17
-15
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scripts/master/spitest.py
View file @
beb5a7fe
...
...
@@ -12,9 +12,9 @@ if (len(sys.argv) < 2):
sys
.
exit
(
1
)
port
=
int
(
sys
.
argv
[
1
])
mode
=
2
bitrate
=
4
0000
# kbps
byteCount
=
11
# bytes
mode
=
3
bitrate
=
3
0000
# kbps
byteCount
=
4096
# bytes
# Open the device
handle
=
ch_open
(
port
)
...
...
@@ -44,10 +44,10 @@ sys.stdout.flush()
# Create 4KB of fake data so we can exchange it for real data
data_in
=
array
(
'B'
,
[
0
for
i
in
range
(
byteCount
)])
ch_spi_queue_clear
(
handle
)
ch_spi_queue_oe
(
handle
,
1
)
ch_spi_queue_ss
(
handle
,
0x1
)
ch_spi_queue_byte
(
handle
,
1
,
1
)
# Sending data to FPGA
ch_spi_queue_byte
(
handle
,
1
,
0xFF
)
# Sending bytes
ch_spi_queue_byte
(
handle
,
1
,
0xF0
)
# Sending bytes
...
...
@@ -58,23 +58,25 @@ ch_spi_queue_byte(handle, 1, 0x34) # Sending bytes
ch_spi_queue_byte
(
handle
,
1
,
0x56
)
# Sending bytes
ch_spi_queue_byte
(
handle
,
1
,
0x78
)
# Sending bytes
ch_spi_queue_byte
(
handle
,
1
,
0x9A
)
# Sending bytes
ch_spi_queue_ss
(
handle
,
0
)
#ch_spi_queue_byte(handle, 1, 0x00) # Send an empty byte, SS high
(
actualByteCount
,
data_in
)
=
ch_spi_batch_shift
(
handle
,
byteCount
)
for
i
in
range
(
actualByteCount
):
sys
.
stdout
.
write
(
"
%
x "
%
data_in
[
i
])
sys
.
stdout
.
write
(
"
\n
"
)
#if (actualByteCount < 0):
# print "error: %s" % ch_status_string(count)
#elif (actualByteCount != byteCount):
# print "error: read %d bytes (expected %d)" % (actualByteCount, byteCount)
#else:
ch_spi_queue_clear
(
handle
)
ch_spi_queue_oe
(
handle
,
1
)
ch_spi_queue_ss
(
handle
,
0x1
)
ch_spi_queue_byte
(
handle
,
1
,
3
)
# Receiving data from FPGA
for
i
in
range
(
1024
):
ch_spi_queue_byte
(
handle
,
1
,
0x00
)
# Sending bytes (1024 bytes of gibberish)
ch_spi_queue_ss
(
handle
,
0
)
(
actualByteCount
,
data_in
)
=
ch_spi_batch_shift
(
handle
,
byteCount
)
for
i
in
range
(
actualByteCount
):
sys
.
stdout
.
write
(
"
%
d
"
%
data_in
[
i
])
sys
.
stdout
.
write
(
"
%
x
"
%
data_in
[
i
])
sys
.
stdout
.
write
(
"
\n
"
)
# Close and exit
ch_close
(
handle
)
sys
.
exit
(
0
)
...
...
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