User's Guide

16
Arad Technologies Ltd. | st. HaMada, Yokneam Elite , 2069206, Israel | www.arad.co.il
The fields:
f (mantissa), a (alarm) ,u (units) are optional.
Valid characters: "0-9", "A-Z", "a-z", "?" is valid as an error indicator.
5.8 Parse message according to old format
5.8.1 In old format the message contains meter ID and Volume date.
5.8.2 The message is parsed according to the ICD.
5.9 Write to EEPROM received parameters
5.9.1 When module ID, data message or Configuration message is received, the parameters
of the message are written into the EEPROM.
5.9.2 This writing to EEPROM prevents the system from losing data when system reset
occurs.
5.10 Reader event handle block
5.10.1 When Reader Clock is received, the system handles reader's ISR event.
5.10.2 All the processes are done in the ISR in order to be synchronized with the reader.
5.10.3 If no clock is detected for 200ms, the system goes to power down mode.
Reader Event handle
block
Open quit detection
timer
EXIT
03/12/2017
Ver. 1.00 Evgeni K.
Reader ISR handle block
Detected Reader
Type?
3W
Wait TPOR time
Clock events
received during
TPSL?
Yes
Wait for down clock
event, shift data out
Last bit in the
message sent?
Advance Tx events
counter,
Go to TRR
Yes
Yes
2W
Open Timer for TPSL
detection
Wait for down clock
event, shift data out
Last bit in the
message sent?
No
Yes
No
Not detected