diff options
Diffstat (limited to 'decoders/nrf905/pd.py')
| -rw-r--r-- | decoders/nrf905/pd.py | 65 |
1 files changed, 16 insertions, 49 deletions
diff --git a/decoders/nrf905/pd.py b/decoders/nrf905/pd.py index 0e5d808..c36bd10 100644 --- a/decoders/nrf905/pd.py +++ b/decoders/nrf905/pd.py @@ -120,10 +120,8 @@ class Decoder(srd.Decoder): def extract_bits(self, byte, start_bit, num_bits): begin = 7 - start_bit end = begin + num_bits - if begin < 0 or end > 8: return 0 - binary = format(byte, '08b')[begin:end] return int(binary, 2) @@ -131,22 +129,18 @@ class Decoder(srd.Decoder): # Iterate all vars on current register. data = '' for var in reg_vars: - var_value = self.extract_bits(reg_value, var['stbit'], - var['nbits']) + var_value = self.extract_bits(reg_value, var['stbit'], var['nbits']) data += var['name'] + ' = ' + str(var_value) opt = '' # If var has options, just add the option meaning. if 'opts' in var: - if var_value in var['opts']: - opt = var['opts'][var_value] - else: - opt = 'unknown' + opt = var['opts'].get(var_value, 'unknown') data += ' (' + opt + ')' # Add var separator. if reg_vars.index(var) != len(reg_vars) - 1: - data = data + ' | ' + data += ' | ' return data def parse_config_register(self, addr, value, is_write): @@ -178,27 +172,22 @@ class Decoder(srd.Decoder): i += 1 def dump_cmd_bytes(self, prefix, cmd_bytes, ann): - ss = cmd_bytes[1][1] - es = 0 + ss, es = cmd_bytes[1][1], 0 data = '' for byte in cmd_bytes[1:]: data += '0x' + format(byte[0], '02x') + ' ' es = byte[2] - self.put(ss, es, self.out_ann, [ann, [prefix + data]]) def handle_WC(self): start_addr = self.mosi_bytes[0][0] & 0x0F - if start_addr > 9: print('ERROR: WRONG OFFSET') return - self.parse_config_registers(start_addr, self.mosi_bytes[1:], True) def handle_RC(self): start_addr = self.mosi_bytes[0][0] & 0x0F - if start_addr > 9: print('ERROR: WRONG OFFSET') return @@ -220,15 +209,10 @@ class Decoder(srd.Decoder): self.dump_cmd_bytes('Read RX payload: ', self.miso_bytes, Ann.RX) def handle_CC(self): - cmd = self.mosi_bytes[0] - dta = self.mosi_bytes[1] - - channel = (cmd[0] & 0x01) << 8 - channel = channel + dta[0] - + cmd, dta = self.mosi_bytes[0], self.mosi_bytes[1] + channel = ((cmd[0] & 0x01) << 8) + dta data = self.extract_vars(CHN_CFG, cmd[0]) - - data = data + '| CHN = ' + str(channel) + data += '| CHN = ' + str(channel) self.put(self.mosi_bytes[0][1], self.mosi_bytes[1][2], self.out_ann, [Ann.REG_WR, [data]]) @@ -238,9 +222,7 @@ class Decoder(srd.Decoder): self.out_ann, [Ann.REG_RD, [status]]) def process_cmd(self): - cmd = '' - cmd_name = '' - cmd_hnd = None + cmd, cmd_name, cmd_hnd = '', '', None for byte in self.mosi_bytes: cmd += hex(byte[0]) + ' ' @@ -248,36 +230,21 @@ class Decoder(srd.Decoder): cmd = self.mosi_bytes[0][0] if (cmd & 0xF0) == 0x00: - cmd_name = 'CMD: W_CONFIG (WC)' - cmd_hnd = self.handle_WC - + cmd_name, cmd_hnd = 'CMD: W_CONFIG (WC)', self.handle_WC elif (cmd & 0xF0) == 0x10: - cmd_name = 'CMD: R_CONFIG (RC)' - cmd_hnd = self.handle_RC - + cmd_name, cmd_hnd = 'CMD: R_CONFIG (RC)', self.handle_RC elif cmd == 0x20: - cmd_name = 'CMD: W_TX_PAYLOAD (WTP)' - cmd_hnd = self.handle_WTP - + cmd_name, cmd_hnd = 'CMD: W_TX_PAYLOAD (WTP)', self.handle_WTP elif cmd == 0x21: - cmd_name = 'CMD: R_TX_PAYLOAD (RTP)' - cmd_hnd = self.handle_RTP - + cmd_name, cmd_hnd = 'CMD: R_TX_PAYLOAD (RTP)', self.handle_RTP elif cmd == 0x22: - cmd_name = 'CMD: W_TX_ADDRESS (WTA)' - cmd_hnd = self.handle_WTA - + cmd_name, cmd_hnd = 'CMD: W_TX_ADDRESS (WTA)', self.handle_WTA elif cmd == 0x23: - cmd_name = 'CMD: R_TX_ADDRESS (RTA)' - cmd_hnd = self.handle_RTA - + cmd_name, cmd_hnd = 'CMD: R_TX_ADDRESS (RTA)', self.handle_RTA elif cmd == 0x24: - cmd_name = 'CMD: R_RX_PAYLOAD (RRP)' - cmd_hnd = self.handle_RRP - + cmd_name, cmd_hnd = 'CMD: R_RX_PAYLOAD (RRP)', self.handle_RRP elif (cmd & 0xF0 == 0x80): - cmd_name = 'CMD: CHANNEL_CONFIG (CC)' - cmd_hnd = self.handle_CC + cmd_name, cmd_hnd = 'CMD: CHANNEL_CONFIG (CC)', self.handle_CC # Report command name. self.put(self.cmd_samples['ss'], self.cmd_samples['es'], |