##
## This file is part of the libsigrokdecode project.
##
-## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012-2014 Uwe Hermann <uwe@hermann-uwe.de>
##
## 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
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-# AVR ISP protocol decoder
-
import sigrokdecode as srd
from .parts import *
longname = 'AVR In-System Programming'
desc = 'Protocol for in-system programming Atmel AVR MCUs.'
license = 'gplv2+'
- inputs = ['spi', 'logic']
+ inputs = ['spi']
outputs = ['avr_isp']
- probes = []
- optional_probes = [
- {'id': 'reset', 'name': 'RESET#', 'desc': 'Target AVR MCU reset'},
- ]
- options = {}
- annotations = [
- ['Text', 'Human-readable text'],
- ['Warnings', 'Human-readable warnings'],
- ]
+ annotations = (
+ ('pe', 'Programming enable'),
+ ('rsb0', 'Read signature byte 0'),
+ ('rsb1', 'Read signature byte 1'),
+ ('rsb2', 'Read signature byte 2'),
+ ('ce', 'Chip erase'),
+ ('rfb', 'Read fuse bits'),
+ ('rhfb', 'Read high fuse bits'),
+ ('refb', 'Read extended fuse bits'),
+ ('warnings', 'Warnings'),
+ ('dev', 'Device'),
+ )
+ annotation_rows = (
+ ('bits', 'Bits', ()),
+ ('commands', 'Commands', tuple(range(7 + 1))),
+ ('warnings', 'Warnings', (8,)),
+ ('dev', 'Device', (9,)),
+ )
def __init__(self, **kwargs):
self.state = 'IDLE'
self.mosi_bytes, self.miso_bytes = [], []
self.cmd_ss, self.cmd_es = 0, 0
self.xx, self.yy, self.zz, self.mm = 0, 0, 0, 0
+ self.device_ss = None
def start(self):
- # self.out_proto = self.add(srd.OUTPUT_PROTO, 'avr_isp')
- self.out_ann = self.add(srd.OUTPUT_ANN, 'avr_isp')
-
- def report(self):
- pass
+ # self.out_python = self.register(srd.OUTPUT_PYTHON)
+ self.out_ann = self.register(srd.OUTPUT_ANN)
def putx(self, data):
self.put(self.cmd_ss, self.cmd_es, self.out_ann, data)
# Sanity check on reply.
if ret[1:4] != [0xac, 0x53, cmd[2]]:
- self.putx([1, ['Warning: Unexpected bytes in reply!']])
+ self.putx([8, ['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([0, ['Vendor code: 0x%02x (%s)' % (ret[3], v)]])
+ self.putx([1, ['Vendor code: 0x%02x (%s)' % (ret[3], v)]])
# Store for later.
self.xx = cmd[1] # Same as ret[2].
# Sanity check on reply.
if ret[1] != 0x30 or ret[2] != cmd[1]:
- self.putx([1, ['Warning: Unexpected bytes in reply!']])
+ self.putx([8, ['Warning: Unexpected bytes in reply!']])
# Sanity check for the vendor code.
if self.vendor_code != VENDOR_CODE_ATMEL:
- self.putx([1, ['Warning: Vendor code was not 0x1e (Atmel)!']])
+ self.putx([8, ['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([0, ['Part family / memory size: 0x%02x' % ret[3]]])
+ self.putx([2, ['Part family / memory size: 0x%02x' % ret[3]]])
# Store for later.
self.mm = cmd[3]
+ self.device_ss = self.cmd_ss
# Sanity check on reply.
if ret[1] != 0x30 or ret[2] != cmd[1] or ret[0] != self.yy:
- self.putx([1, ['Warning: Unexpected bytes in reply!']])
+ self.putx([8, ['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([0, ['Part number: 0x%02x' % ret[3]]])
+ self.putx([3, ['Part number: 0x%02x' % ret[3]]])
- # TODO: Fix range.
p = part[(self.part_fam_flash_size, self.part_number)]
- self.putx([0, ['Device: Atmel %s' % p]])
+ data = [9, ['Device: Atmel %s' % p]]
+ self.put(self.device_ss, self.cmd_es, self.out_ann, data)
# Sanity check on reply.
if ret[1] != 0x30 or ret[2] != self.xx or ret[0] != self.mm:
- self.putx([1, ['Warning: Unexpected bytes in reply!']])
+ self.putx([8, ['Warning: Unexpected bytes in reply!']])
self.xx, self.yy, self.zz, self.mm = 0, 0, 0, 0
# 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([0, ['Chip erase']])
+ self.putx([4, ['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([1, ['Warning: Unexpected bytes in reply!']])
+ self.putx([8, ['Warning: Unexpected bytes in reply!']])
def handle_cmd_read_fuse_bits(self, cmd, ret):
# Read fuse bits.
- self.putx([0, ['Read fuse bits: 0x%02x' % ret[3]]])
+ self.putx([5, ['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([0, ['Read fuse high bits: 0x%02x' % ret[3]]])
+ self.putx([6, ['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([0, ['Read extended fuse bits: 0x%02x' % ret[3]]])
+ self.putx([7, ['Read extended fuse bits: 0x%02x' % ret[3]]])
# TODO: Decode fuse bits.
# TODO: Sanity check on reply.
def decode(self, ss, es, data):
ptype, mosi, miso = data
- if ptype != 'DATA':
+ # For now, only use DATA and BITS packets.
+ if ptype not in ('DATA', 'BITS'):
return
- # self.put(0, 0, self.out_ann,
- # [0, ['MOSI: 0x%02x, MISO: 0x%02x' % (mosi, miso)]])
+ # Store the individual bit values and ss/es numbers. The next packet
+ # is guaranteed to be a 'DATA' packet belonging to this 'BITS' one.
+ if ptype == 'BITS':
+ self.miso_bits, self.mosi_bits = miso, mosi
+ return
self.ss, self.es = ss, es
+ if len(self.mosi_bytes) == 0:
+ self.cmd_ss = ss
+
# Append new bytes.
self.mosi_bytes.append(mosi)
self.miso_bytes.append(miso)
- if len(self.mosi_bytes) == 0:
- self.cmd_ss = ss
-
# All commands consist of 4 bytes.
if len(self.mosi_bytes) < 4:
return
projects / libsigrokdecode.git / blobdiff