Hallo,
this is my second try to contribute to the sigrok project. I found in
the wiki. "Send the decoder (preferrably as a patch against the current
git HEAD of libsigrokdecode) to the sigrok-devel mailing list". So I try
this here.
I am working on the AVR_ISP decoder.
In the first step I have replaced the number literals by some kind of
enumeration as recommended on the same wiki page. Further I fixed an
annotation index. The index for "programming enable" was errornously
used instaed of the index for "warning".
The patches for libsigrokdecode and sigroktest are attached. When these
are accepted I plan to update to the new commit and provide the next
patches that extend the functionality of the decoder.
Best regards,
Helge
decoders/avr_isp/pd.py | 41 ++++++++++++++++++++++-------------------
1 file changed, 22 insertions(+), 19 deletions(-)
diff --git a/decoders/avr_isp/pd.py b/decoders/avr_isp/pd.py
index bb52bb6..42e4682 100644
--- a/decoders/avr_isp/pd.py
+++ b/decoders/avr_isp/pd.py
@@ -20,6 +20,9 @@
import sigrokdecode as srd
from .parts import *
+class Ann:
+ PE, RSB0, RSB1, RSB2, CE, RFB, RHFB, REFB, WARN, DEV = range(10)
+
VENDOR_CODE_ATMEL = 0x1e
class Decoder(srd.Decoder):
@@ -46,9 +49,9 @@ class Decoder(srd.Decoder):
)
annotation_rows = (
('bits', 'Bits', ()),
- ('commands', 'Commands', tuple(range(7 + 1))),
- ('warnings', 'Warnings', (8,)),
- ('devs', 'Devices', (9,)),
+ ('commands', 'Commands', tuple(range(Ann.REFB + 1))),
+ ('warnings', 'Warnings', (Ann.WARN + 1,)),
+ ('devs', 'Devices', (Ann.DEV + 1,)),
)
def __init__(self):
@@ -70,17 +73,17 @@ def putx(self, data):
def handle_cmd_programming_enable(self, cmd, ret):
# Programming enable.
# Note: The chip doesn't send any ACK for 'Programming enable'.
- self.putx([0, ['Programming enable']])
+ self.putx([Ann.PE, ['Programming enable']])
# Sanity check on reply.
if ret[1:4] != [0xac, 0x53, cmd[2]]:
- self.putx([8, ['Warning: Unexpected bytes in reply!']])
+ self.putx([Ann.WARN, ['Warning: Unexpected bytes in reply!']])
def handle_cmd_read_signature_byte_0x00(self, cmd, ret):
# Signature byte 0x00: vendor code.
self.vendor_code = ret[3]
v = vendor_code[self.vendor_code]
- self.putx([1, ['Vendor code: 0x%02x (%s)' % (ret[3], v)]])
+ self.putx([Ann.RSB0, ['Vendor code: 0x%02x (%s)' % (ret[3], v)]])
# Store for later.
self.xx = cmd[1] # Same as ret[2].
@@ -89,16 +92,16 @@ def handle_cmd_read_signature_byte_0x00(self, cmd, ret):
# Sanity check on reply.
if ret[1] != 0x30 or ret[2] != cmd[1]:
- self.putx([8, ['Warning: Unexpected bytes in reply!']])
+ self.putx([Ann.WARN, ['Warning: Unexpected bytes in reply!']])
# Sanity check for the vendor code.
if self.vendor_code != VENDOR_CODE_ATMEL:
- self.putx([8, ['Warning: Vendor code was not 0x1e (Atmel)!']])
+ self.putx([Ann.WARN, ['Warning: Vendor code was not 0x1e
(Atmel)!']])
def handle_cmd_read_signature_byte_0x01(self, cmd, ret):
# Signature byte 0x01: part family and memory size.
self.part_fam_flash_size = ret[3]
- self.putx([2, ['Part family / memory size: 0x%02x' % ret[3]]])
+ self.putx([Ann.RSB1, ['Part family / memory size: 0x%02x' % ret[3]]])
# Store for later.
self.mm = cmd[3]
@@ -106,20 +109,20 @@ def handle_cmd_read_signature_byte_0x01(self, cmd, ret):
# Sanity check on reply.
if ret[1] != 0x30 or ret[2] != cmd[1] or ret[0] != self.yy:
- self.putx([8, ['Warning: Unexpected bytes in reply!']])
+ self.putx([Ann.WARN, ['Warning: Unexpected bytes in reply!']])
def handle_cmd_read_signature_byte_0x02(self, cmd, ret):
# Signature byte 0x02: part number.
self.part_number = ret[3]
- self.putx([3, ['Part number: 0x%02x' % ret[3]]])
+ self.putx([Ann.RSB2, ['Part number: 0x%02x' % ret[3]]])
p = part[(self.part_fam_flash_size, self.part_number)]
- data = [9, ['Device: Atmel %s' % p]]
+ data = [Ann.DEV, ['Device: Atmel %s' % p]]
self.put(self.ss_device, self.es_cmd, self.out_ann, data)
# Sanity check on reply.
if ret[1] != 0x30 or ret[2] != self.xx or ret[0] != self.mm:
- self.putx([8, ['Warning: Unexpected bytes in reply!']])
+ self.putx([Ann.WARN, ['Warning: Unexpected bytes in reply!']])
self.xx, self.yy, self.zz, self.mm = 0, 0, 0, 0
@@ -127,32 +130,32 @@ def handle_cmd_chip_erase(self, cmd, ret):
# Chip erase (erases both flash an EEPROM).
# Upon successful chip erase, the lock bits will also be erased.
# The only way to end a Chip Erase cycle is to release RESET#.
- self.putx([4, ['Chip erase']])
+ self.putx([Ann.CE, ['Chip erase']])
# TODO: Check/handle RESET#.
# Sanity check on reply.
bit = (ret[2] & (1 << 7)) >> 7
if ret[1] != 0xac or bit != 1 or ret[3] != cmd[2]:
- self.putx([8, ['Warning: Unexpected bytes in reply!']])
+ self.putx([Ann.WARN, ['Warning: Unexpected bytes in reply!']])
def handle_cmd_read_fuse_bits(self, cmd, ret):
# Read fuse bits.
- self.putx([5, ['Read fuse bits: 0x%02x' % ret[3]]])
+ self.putx([Ann.RFB, ['Read fuse bits: 0x%02x' % ret[3]]])
# TODO: Decode fuse bits.
# TODO: Sanity check on reply.
def handle_cmd_read_fuse_high_bits(self, cmd, ret):
# Read fuse high bits.
- self.putx([6, ['Read fuse high bits: 0x%02x' % ret[3]]])
+ self.putx([Ann.RHFB, ['Read fuse high bits: 0x%02x' % ret[3]]])
# TODO: Decode fuse bits.
# TODO: Sanity check on reply.
def handle_cmd_read_extended_fuse_bits(self, cmd, ret):
# Read extended fuse bits.
- self.putx([7, ['Read extended fuse bits: 0x%02x' % ret[3]]])
+ self.putx([Ann.REFB, ['Read extended fuse bits: 0x%02x' % ret[3]]])
# TODO: Decode fuse bits.
# TODO: Sanity check on reply.
@@ -177,7 +180,7 @@ def handle_command(self, cmd, ret):
else:
c = '%02x %02x %02x %02x' % tuple(cmd)
r = '%02x %02x %02x %02x' % tuple(ret)
- self.putx([0, ['Unknown command: %s (reply: %s)!' % (c, r)]])
+ self.putx([Ann.WARN, ['Unknown command: %s (reply: %s)!' % (c,
r)]])
def decode(self, ss, es, data):
ptype, mosi, miso = data
decoder/test/avr_isp/atmega88_erase_chip.output | 8 ++++----
decoder/test/avr_isp/atmega88_read_lfuse.output | 8 ++++----
decoder/test/avr_isp/atmega88_scan.output | 8 ++++----
3 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/decoder/test/avr_isp/atmega88_erase_chip.output
b/decoder/test/avr_isp/atmega88_erase_chip.output
index 39b06ca..5e0e120 100644
--- a/decoder/test/avr_isp/atmega88_erase_chip.output
+++ b/decoder/test/avr_isp/atmega88_erase_chip.output
@@ -13,10 +13,10 @@
5264650-5265998 avr_isp: refb: "Read extended fuse bits: 0xf9"
5281330-5282678 avr_isp: refb: "Read extended fuse bits: 0xf9"
5297338-5298687 avr_isp: refb: "Read extended fuse bits: 0xf9"
-5312699-5314048 avr_isp: pe: "Unknown command: a0 01 fc 00 (reply: 00 a0 01
ff)!"
-5329353-5330702 avr_isp: pe: "Unknown command: a0 01 fd 00 (reply: 00 a0 01
ff)!"
-5344691-5346042 avr_isp: pe: "Unknown command: a0 01 fe 00 (reply: 00 a0 01
ff)!"
-5360931-5362282 avr_isp: pe: "Unknown command: a0 01 ff 00 (reply: 00 a0 01
ff)!"
+5312699-5314048 avr_isp: warning: "Unknown command: a0 01 fc 00 (reply: 00 a0
01 ff)!"
+5329353-5330702 avr_isp: warning: "Unknown command: a0 01 fd 00 (reply: 00 a0
01 ff)!"
+5344691-5346042 avr_isp: warning: "Unknown command: a0 01 fe 00 (reply: 00 a0
01 ff)!"
+5360931-5362282 avr_isp: warning: "Unknown command: a0 01 ff 00 (reply: 00 a0
01 ff)!"
5376907-5378241 avr_isp: ce: "Chip erase"
5674961-5676308 avr_isp: pe: "Programming enable"
5674961-5676308 avr_isp: warning: "Warning: Unexpected bytes in reply!"
diff --git a/decoder/test/avr_isp/atmega88_read_lfuse.output
b/decoder/test/avr_isp/atmega88_read_lfuse.output
index 39aa88f..86da65f 100644
--- a/decoder/test/avr_isp/atmega88_read_lfuse.output
+++ b/decoder/test/avr_isp/atmega88_read_lfuse.output
@@ -13,10 +13,10 @@
6026034-6027382 avr_isp: refb: "Read extended fuse bits: 0xf9"
6041368-6042716 avr_isp: refb: "Read extended fuse bits: 0xf9"
6057592-6058940 avr_isp: refb: "Read extended fuse bits: 0xf9"
-6073389-6074740 avr_isp: pe: "Unknown command: a0 01 fc 00 (reply: 00 a0 01
ff)!"
-6090091-6091442 avr_isp: pe: "Unknown command: a0 01 fd 00 (reply: 00 a0 01
ff)!"
-6106091-6107442 avr_isp: pe: "Unknown command: a0 01 fe 00 (reply: 00 a0 01
ff)!"
-6121409-6122760 avr_isp: pe: "Unknown command: a0 01 ff 00 (reply: 00 a0 01
ff)!"
+6073389-6074740 avr_isp: warning: "Unknown command: a0 01 fc 00 (reply: 00 a0
01 ff)!"
+6090091-6091442 avr_isp: warning: "Unknown command: a0 01 fd 00 (reply: 00 a0
01 ff)!"
+6106091-6107442 avr_isp: warning: "Unknown command: a0 01 fe 00 (reply: 00 a0
01 ff)!"
+6121409-6122760 avr_isp: warning: "Unknown command: a0 01 ff 00 (reply: 00 a0
01 ff)!"
6138099-6139448 avr_isp: rfb: "Read fuse bits: 0xff"
6153440-6154789 avr_isp: rfb: "Read fuse bits: 0xff"
6170107-6171456 avr_isp: rfb: "Read fuse bits: 0xff"
diff --git a/decoder/test/avr_isp/atmega88_scan.output
b/decoder/test/avr_isp/atmega88_scan.output
index 4369f69..b26abdd 100644
--- a/decoder/test/avr_isp/atmega88_scan.output
+++ b/decoder/test/avr_isp/atmega88_scan.output
@@ -13,10 +13,10 @@
6604121-6605470 avr_isp: refb: "Read extended fuse bits: 0xf9"
6620800-6622149 avr_isp: refb: "Read extended fuse bits: 0xf9"
6636153-6637502 avr_isp: refb: "Read extended fuse bits: 0xf9"
-6652190-6653540 avr_isp: pe: "Unknown command: a0 01 fc 00 (reply: 00 a0 01
ff)!"
-6668387-6669738 avr_isp: pe: "Unknown command: a0 01 fd 00 (reply: 00 a0 01
ff)!"
-6684163-6685514 avr_isp: pe: "Unknown command: a0 01 fe 00 (reply: 00 a0 01
ff)!"
-6700843-6702194 avr_isp: pe: "Unknown command: a0 01 ff 00 (reply: 00 a0 01
ff)!"
+6652190-6653540 avr_isp: warning: "Unknown command: a0 01 fc 00 (reply: 00 a0
01 ff)!"
+6668387-6669738 avr_isp: warning: "Unknown command: a0 01 fd 00 (reply: 00 a0
01 ff)!"
+6684163-6685514 avr_isp: warning: "Unknown command: a0 01 fe 00 (reply: 00 a0
01 ff)!"
+6700843-6702194 avr_isp: warning: "Unknown command: a0 01 ff 00 (reply: 00 a0
01 ff)!"
6716410-6717759 avr_isp: rfb: "Read fuse bits: 0xff"
6732620-6733969 avr_isp: rfb: "Read fuse bits: 0xff"
6748623-6749972 avr_isp: rfb: "Read fuse bits: 0xff"
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