MSI CR52-A4 firmare 4.0 Drivers for PC
MSI CR52-A4 firmare 4.0 Driver
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MSI CR52-A4 firmare 4.0 Driver
The non-volatile memory 24 stores critical postage meter data during periods when power is not applied to the postage meter.
This data includes in addition to the serial number of the mailing machine or postage meter information as to the value in the descending register the amount of postage avail-able for printingthe value in the ascending register the total amount of postage printed by the meterand the value in the piece count register tthe total number of cycles the meter has performedas well as other types of data, such as trip status, initialization and service information, which MSI CR52-A4 firmare 4.0 desired to be retained in the memory even though no power is applied to the meter.
The information MSI CR52-A4 firmare 4.0 in the non-volatile memory 24 is transferred via the microprocessor 10 to the RAM of the integrated circuit After power up the RAM contains MSI CR52-A4 firmare 4.0 image or copy of the information stored in the non-volatile memory 24 prior to energization. During operation of the postage meter, certain of the data in the RAM is modified.
Accordingly, when postage is printed, the descending register will be reduced by the value of the printed postage, the ascending register increased by the value of the printed postage and the piece counter register incremented. A like transfer of information between the non-volatile memory 24 and the RAM takes place during power failure. Referring MSI CR52-A4 firmare 4.0 Figure 2, a more detailed block diagram of the arrangement of the electrical components for the postage meter is illustrated generally as 4B.
Power MSI CR52-A4 firmare 4.0 supplied to the postage meter from the AC line voltage, typically volts. This line voltage is applied to the meter through a hot switch 50 which cuts off power to the postage meter to protect the electrical components thereof if the temperature rises above a preset limit, nominally 70C.
The hot switch 50 is connected to the AC drive motor 36A through an RF filter 52 and an opto-triac 54 which provides isolation between the line voltage and the control logic for the meter. The hot switch S0 is also connected to a transformer 56 protected by a fuse The output of the transformer 56 is coupled to a pre-regulator 59 through a cold switch The cold MSI CR52-A4 firmare 4.0 60 cuts off power to the pre-regulator 59 if the temperature drops below a preset limit, nominally 0C.
The V is applied to a V regulator 70 and then to the non-volatile memory 24A. The V output from the switcher 62 is also applied to a V regulator 74 and then to a V switch 76 which switches its output voltage on and off in MSI CR52-A4 firmare 4.0 to the requirements of writing in NVM as dictated by the program. The output of the V switch is applied to the non-volatile memory 24A. The V supply is connected to the MSI CR52-A4 firmare 4.0 on reset 72 of the microprocessor lOA.
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The low voltage sensor 88 detects power failure and communicates this MSI CR52-A4 firmare 4.0 the microprocessor lOA which in turn addresses the RAM through MSI CR52-A4 firmare 4.0 bus 12A to transfer all security data present in the RAM to the non-volatile memory 24A. An output strobe from the integrated circuit 16A is buffered through buffer driver 6B and applied to digit sensor encoder 78, bank sensor encoder 80, and trip sensor 40A.
The opto strobe applies MSI CR52-A4 firmare 4.0 to the digit sensor 78, bank sensor 80 and trip sensor 40A when needed. During power up, the key switch 42, see Fig. Preferably the Initialization process is that described in copending application Serial No. Eckert and Easwaran C. In operation, the microprocessor 10A under control of the ROM 14A and possibly the auxiliary ROM commun-icates over the address bus 94 and control bus 98 with the device select The output of the device select 98 communicates with the particular module to be addressed over select lines The RAM of inte-grated circuit 16A provides the working memory for the postage meter and the microprocessor 10A.
The non-volatile memory 24A provides storage of all security information for the meter and retains such information during power down or power failure. The demultiplexer MSI CR52-A4 firmare 4.0 the lower eight 8 bits of address information that defines a particular location which is used immediately thereafter.
The demultiplexer latches the lower eight 8 bit of address information that defines a particular location which is used immediately thereafter. As previously mentioned, the digital sensor 78 optical MSI CR52-A4 firmare 4.0 and bank sensor 80, optical encoder and cycle switch 84 whose current state is read, i.
The privilege access switch may be used in applications which require manual resetting MSI CR52-A4 firmare 4.0 meter postage via a switch which is kept under seal. A program listing for a postage meter of the type described in the aforementioned related patent application of Danilo Baun is set forth in the Program Appendix. The program listing includes the code for the flow chart in Fig.
If it is not disabled, this subroutine returns error status to the superordinate process and no trip occurs.
If not, error status is returned to the superordinate process. That is, a specific bit is accessed in the non-volatile memory to determine whether the serial number of the postage meter has been locked in non-volatile memory. If it has not, the trip is executed and normal status is returned to the superordinate process. However, if the serial number has been locked in the non-volatile memory, another address in MSI CR52-A4 firmare 4.0 non-volatile memory is accessed to determine whether a bit is present to disable the external trip.
If so, error status is returned to the superordinate process.
However, if a trip lock NVM. Thereafter, control is returned to the superordinate process with normal status.
Initially, it is determined whether the meter is in a service state. If so, the service function is executed and control is returned to the super-ordinate process.