diff options
Diffstat (limited to 'decoders/mx25lxx05d/mx25lxx05d.py')
| -rw-r--r-- | decoders/mx25lxx05d/mx25lxx05d.py | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/decoders/mx25lxx05d/mx25lxx05d.py b/decoders/mx25lxx05d/mx25lxx05d.py index 18c5917..a5dab2e 100644 --- a/decoders/mx25lxx05d/mx25lxx05d.py +++ b/decoders/mx25lxx05d/mx25lxx05d.py @@ -93,6 +93,31 @@ device_name = { 0x16: 'MX25L6405D', } +def decode_status_reg(data): + # TODO: Additional per-bit(s) self.put() calls with correct start/end. + + # Bits[0:0]: WIP (write in progress) + s = 'W' if (data & (1 << 0)) else 'No w' + ret = '%srite operation in progress.\n' % s + + # Bits[1:1]: WEL (write enable latch) + s = '' if (data & (1 << 1)) else 'not ' + ret += 'Internal write enable latch is %sset.\n' % s + + # Bits[5:2]: Block protect bits + # TODO: More detailed decoding (chip-dependent). + ret += 'Block protection bits (BP3-BP0): 0x%x.\n' % ((data & 0x3c) >> 2) + + # Bits[6:6]: Continuously program mode (CP mode) + s = '' if (data & (1 << 6)) else 'not ' + ret += 'Device is %sin continuously program mode (CP mode).\n' % s + + # Bits[7:7]: SRWD (status register write disable) + s = '' if (data & (1 << 7)) else 'not ' + ret += 'Status register writes are %sallowed.\n' % s + + return ret + class Decoder(srd.Decoder): api_version = 1 id = 'mx25lxx05d' @@ -235,7 +260,7 @@ class Decoder(srd.Decoder): # Bytes 2-x: Slave sends status register as long as master clocks. if self.cmdstate <= 3: # TODO: While CS# asserted. self.putx([0, ['Status register: 0x%02x' % miso]]) - # TODO: Decode status register bits. + self.putx([0, [decode_status_reg(miso)]]) if self.cmdstate == 3: # TODO: If CS# got de-asserted. self.state = IDLE |