##
-## This file is part of the sigrok project.
+## This file is part of the libsigrokdecode project.
##
## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
##
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
-# AVR ISP protocol decoder
-
import sigrokdecode as srd
-
-# Device code addresses:
-# 0x00: vendor code, 0x01: part family + flash size, 0x02: part number
-
-# Vendor code
-vendor_code = {
- 0x1e: 'Atmel',
- 0x00: 'Device locked',
-}
-
-# (Part family + flash size, part number)
-part = {
- (0x90, 0x01): 'AT90S1200',
- (0x91, 0x01): 'AT90S2313',
- (0x92, 0x01): 'AT90S4414',
- (0x92, 0x05): 'ATmega48', # 4kB flash
- (0x93, 0x01): 'AT90S8515',
- (0x93, 0x0a): 'ATmega88', # 8kB flash
- (0x94, 0x06): 'ATmega168', # 16kB flash
- (0xff, 0xff): 'Device code erased, or target missing',
- (0x01, 0x02): 'Device locked',
- # TODO: Lots more entries.
-}
+from .parts import *
VENDOR_CODE_ATMEL = 0x1e
api_version = 1
id = 'avr_isp'
name = 'AVR ISP'
- longname = 'AVR in-system programming'
+ longname = 'AVR In-System Programming'
desc = 'Protocol for in-system programming Atmel AVR MCUs.'
license = 'gplv2+'
inputs = ['spi', 'logic']
]
options = {}
annotations = [
- ['Text', 'Human-readable text'],
- ['Warnings', 'Human-readable warnings'],
+ ['text', 'Human-readable text'],
+ ['warnings', 'Human-readable warnings'],
]
def __init__(self, **kwargs):
self.cmd_ss, self.cmd_es = 0, 0
self.xx, self.yy, self.zz, self.mm = 0, 0, 0, 0
- def start(self, metadata):
- # self.out_proto = self.add(srd.OUTPUT_PROTO, 'avr_isp')
- self.out_ann = self.add(srd.OUTPUT_ANN, 'avr_isp')
-
- def report(self):
- pass
+ def start(self):
+ # 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)
self.xx, self.yy, self.zz, self.mm = 0, 0, 0, 0
def handle_cmd_chip_erase(self, cmd, ret):
- # TODO
+ # 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']])
+ # 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!']])
+
def handle_cmd_read_fuse_bits(self, cmd, ret):
# Read fuse bits.
self.putx([0, ['Read fuse bits: 0x%02x' % ret[3]]])
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