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| author | Uwe Hermann <uwe@hermann-uwe.de> | 2012-07-28 17:39:38 +0200 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2012-07-28 23:39:47 +0200 |
| commit | 1fd698dcf076c62e53e089be50572efae6b68f15 (patch) | |
| tree | 1fbd789b3eedac1abf93582115e32a5f17ec7e2a /decoders/avr_isp/pd.py | |
| parent | 77adad943111ab064f01838033dc9c94152f46c7 (diff) | |
| download | libsigrokdecode-1fd698dcf076c62e53e089be50572efae6b68f15.tar.gz libsigrokdecode-1fd698dcf076c62e53e089be50572efae6b68f15.zip | |
srd: avr_isp: Improve Chip Erase handling.
Diffstat (limited to 'decoders/avr_isp/pd.py')
| -rw-r--r-- | decoders/avr_isp/pd.py | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/decoders/avr_isp/pd.py b/decoders/avr_isp/pd.py index 4b496e0..9ecc280 100644 --- a/decoders/avr_isp/pd.py +++ b/decoders/avr_isp/pd.py @@ -116,9 +116,18 @@ class Decoder(srd.Decoder): 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]]]) |