JP4512796B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine.

  2. Description of the Related Art Conventionally, in a gaming machine including a main control board that controls the progress of a game and a lower control board that controls a predetermined component related to a game based on a command from the main control board, a signal line or a connector In order to reduce the amount of data transfer, it has been proposed to transfer commands between control boards by serial transfer. Serial transfer between control boards is realized by providing each control board with a serial communication unit that performs conversion between parallel data and serial data.

  In a gaming machine, each control board and various electronic devices are densely arranged, and static electricity may be generated due to friction between gaming balls and a ball passage or between gaming balls. In order to ensure the reliability of command transfer against electrical noise due to these factors, the transfer rate of command transfer between control boards is set to a level that can ensure the reliability against electrical noise. Therefore, the transfer speed of serial transfer is limited compared to the calculation processing speed by the CPU of the control board.

  Conventionally, if the word length of a command serially transferred between control boards exceeds the capacity that can be handled by the serial communication unit, the command is divided and serially transferred to a word length that can be handled by the serial communication unit. It has also been proposed. Patent Document 1 below discloses a gaming machine in which commands are divided and serially transferred between a main control board and a lower control board.

JP 2003-111941 A

  However, the gaming machine disclosed in Patent Document 1 takes into account the difference in processing speed between the CPU processing speed of the main control board and the transfer speed of serial transfer, and serializes one of the divided commands. Since the other part of the divided command is stored in the register of the serial communication unit with sufficient time to complete the transfer, and the CPU on the main control board is involved in the serial transfer of the command, the main command becomes longer. There is a problem in that the progress of other control processes on the control board is hindered and the control program executed on the main control board is complicated.

  An object of the present invention is to provide a gaming machine capable of realizing smooth game control when a command is divided and serially transferred in units of 1 byte in consideration of the above-described problems.

In order to solve the above-described problems, a gaming machine according to the present invention includes a main control board that controls the progress of a game, and a lower-level control board that controls predetermined components related to the game based on commands from the main control board. A gaming machine equipped with
At least one control board of the main control board and the lower control board is:
In order to realize predetermined control processing in the control board, interrupt processing is repeatedly executed at predetermined intervals, and a command of 2 bytes or more for the other control board is generated as part of the repeatedly executed interrupt processing. A processing unit,
A transmission serial communication unit that executes serial transfer of the generated command to the other control board in units of 1 byte;
The transmission serial communication unit includes:
A buffer register having a storage capacity of 1 byte, receiving the generated command from the transmitting central processing unit, and storing the command;
A shift register having a storage capacity of 1 byte, receiving a command stored in the buffer register, and storing the command to convert the command into serial data;
The transmission-side central processing unit sends the first command of the first byte of the two bytes of the command of two bytes or more to the transmission serial in a predetermined one interrupt process among the interrupt processes repeatedly executed. In addition to passing to the communication unit, before the serial transfer of the first command is completed within the predetermined one-time interrupt processing, the subsequent command of the second byte of the two bytes is transferred to the transmission serial communication unit. ,
The transmission serial communication unit, the passed-in leading command to said predetermined one interrupt the process stores the shift register via the buffer register, while storing the first command to the shift register, The succeeding command delivered in the predetermined one interruption process is stored in the buffer register ,
The time required for serial transfer of 1 byte by the transmission serial communication unit is longer than the interval at which the interrupt process is executed,
After the completion of one interrupt process in which the head command and the subsequent command are delivered from the transmission side central processing unit to the transmission serial communication unit, the transmission serial communication unit follows the completion of serial transfer of the preceding command. Then, serial transfer of the subsequent command is executed .

  According to the gaming machine of the present invention, while the CPU of the main control board performs one interrupt process, a command capable of serial transfer can be stored in the register of the serial communication unit for 2 bytes. It is possible to shorten the period related to the serial transfer of commands by the CPU of the board. As a result, it is possible to suppress the progress of other control processes on the main control board and the complexity of the control program executed on the main control board. Therefore, smooth game control can be realized when commands are divided and serially transferred. The lower control board may be a payout control board that controls payout of game balls.

  The gaming machine of the present invention having the above configuration can also take the following aspects. The transmission serial communication unit may complete serial transfer of the two delivered commands while the transmission-side central processing unit repeatedly executes the interrupt processing a plurality of times. As a result, serial transfer can be realized without hindering the arithmetic processing by the transmission side central processing unit. For example, the transmission-side central processing unit executes the interrupt processing at intervals of several milliseconds, and the transmission serial communication unit executes the serial transfer at a transfer rate of several kilobits per second. good.

  The transmission-side central processing unit and the transmission serial communication unit may be integrated on a single chip. As a result, it is possible to prevent falsification of commands when they are exchanged in the control board.

  In order to further clarify the configuration and operation of the present invention described above, game machines to which the present invention is applied will be described in the following order. In the present specification, a signal name prefixed with “#” means negative logic. “High level” means the “1” level of the two levels of the binary signal, and “Low level” means the “0” level.

Table of Contents A. First Example A- (1). Configuration of pachinko machine 10 A- (2). Operation of pachinko machine 10 A- (2-1). Command transmission of main control board 20 A- (2-2). B. Command reception of payout control board 70 Other embodiments

A. First embodiment:
A- (1). Configuration of the pachinko machine 10:
A configuration of the pachinko machine 10 that is one of the embodiments of the present invention will be described. FIG. 1 is a front view showing the overall configuration of the pachinko machine 10. As shown in FIG. 1, the pachinko machine 10 includes an outer frame 11 that is fixed to an island facility or the like of a pachinko store, an inner frame 12 that is fitted into the outer frame 11, and a game ball that is arranged near the center of the inner frame 12. A game board 13 where a game is played, a glass frame 14 disposed in front of the game board 13 and having a glass plate in the center, a handle 15 for accepting an instruction for a player to launch a game ball onto the game board 13, and a game using a prepaid card A card unit 90 or the like that accepts lending of a ball is provided.

  A liquid crystal display (hereinafter referred to as LCD) 35 is provided at the center of the game board 13, and a winning opening 61 for receiving a winning game ball is provided below the LCD 35. The winning opening 61 includes a game ball sensor 65 that detects a winning game ball, and a game board drive unit 66 that expands and contracts the introduction path of the game ball in a predetermined case. The pachinko machine 10 includes electrical decorations 55, 56, 57, 58, 59 having light emitting diodes (LEDs). The electrical decorations 55 and 56 are provided on the left and right ends of the game board 13, the electrical decoration 57 is provided on the upper part of the LCD 35, and the electrical decorations 58 and 59 are provided on the left and right of the upper part of the glass frame 14, respectively. A speaker 45 for outputting sound is built in the front center of the inner frame 12.

  FIG. 2 is a block diagram showing an electrical schematic configuration of the pachinko machine 10. The pachinko machine 10 is a game using a main control board 20 that controls the progress of a game, a payout control board 70 that controls a payout driving unit 75 that pays out game balls, an LCD 35, a speaker 45, and electrical decorations 55 to 59. A sub-control board 40 that controls an effect according to the progress, and a symbol control board 30 that controls the display of a moving image on the LCD 35 are provided.

  The main control board 20, the payout control board 70, the sub control board 40, and the symbol control board 30 define a central processing unit (hereinafter referred to as “CPU”) that performs various arithmetic processing, and arithmetic processing of the CPU. Read-only memory (hereinafter referred to as “ROM”) that stores previously stored programs, and random access memory (hereinafter referred to as “RAM”) that temporarily stores data handled by the CPU. A circuit board on which electronic components are mounted. Each of these substrates and the payout drive unit 75 are provided on the back surface (not shown) of the inner frame 12 shown in FIG.

  Various commands are transmitted between the main control board 20 and the payout control board 70 by serial transfer. The board that has normally received the command transmits an ACK (Acknowledge) signal that indicates that the command has been received normally to the board that has transmitted the command. As main commands from the main control board 20 to the payout control board 70, there are commands relating to payout of game balls and commands for instructing the payout control board 70 to report the operation state. As commands relating to game ball payout, for example, a command for designating the number of game balls to be paid out, a command for instructing start of payout of game balls, a command for instructing stop of payout of game balls, and the like are conceivable. As a main command from the payout control board 70 to the main control board 20, there is a command for transmitting an operation state of the payout control board 70. The details of the electrical configuration of the main control board 20 and the payout control board 70 will be described later.

  Various commands are transmitted by parallel transfer from the main control board 20 to the sub-control board 40 and from the sub-control board 40 to the symbol control board 30, respectively. As main commands from the main control board 20 to the sub-control board 40, there are commands for instructing basic effects relating to games such as so-called “big hit” and “out of game”. A main command from the sub control board 40 to the symbol control board 30 is a command for instructing a display mode of a moving image on the LCD 35 based on a command from the main control board 20.

  FIG. 3 is a block diagram showing details of the electrical configuration of the main control board 20 and the payout control board 70. The main control board 20 includes a main CPU 200 having a serial communication function and a parallel communication function with the outside as a CPU for performing various arithmetic processes in the main control board 20. The main CPU 200 is configured with an arithmetic processing unit 210 that performs arithmetic processing, a serial IF unit 220 as a serial communication unit that performs serial communication with the outside, and a parallel IF unit 230 that performs parallel communication with the outside. Yes. Exchange of commands with the payout control board 70 is performed via the serial IF unit 220, and exchange of ACK signals with the payout control board 70 is performed via the parallel IF unit 230.

  The serial IF unit 220 receives the parallel data TDa from the arithmetic processing unit 210, receives the transmission buffer register 240 for storing the data, and the data stored in the transmission buffer register 240, converts the data into serial data SDab, A transmission shift register 250 for serial transfer to the payout control board 70; a serial data SDba from the payout control board 70; a reception shift register 260 for storing the data; and data stored in the reception shift register 260; Are received and stored as parallel data RDa by the arithmetic processing unit 210, and a serial management unit 280 for managing the operation state of each unit in the serial IF unit 220, and these are integrated on one chip. Is There. The transmission buffer register 240, the transmission shift register 250, the reception shift register 260, and the reception buffer register 270 are registers each having a storage capacity of 1 byte.

  The serial management unit 280 allows the data transfer from the transmission buffer register 240 to the transmission shift register 250 when the transmission shift register 250 is not performing serial transfer with respect to the transmission shift register 250 and the transmission buffer register 240. The data is erased from the transmission buffer register 240.

  The serial management unit 280 permits the data transfer from the reception shift register 260 to the reception buffer register 270 when the data is not stored in the reception buffer register 270 with respect to the reception shift register 260 and the reception buffer register 270. The processing unit 210 is configured to erase data from the reception buffer register 270 after reading the parallel data RDa from the reception buffer register 270.

  Note that the transfer rate of serial transfer by the serial IF unit 220 is determined based on a signal obtained by dividing the clock signal for operating the main CPU 200. The frequency division ratio of the clock signal that determines the transfer rate can be set by the value of a register (not shown) included in the serial IF unit 220.

  The arithmetic processing unit 210 writes the parallel data TDa to the transmission buffer register 240 by lowering the write signal #WRa to the transmission buffer register 240, and sets the read signal #REa to the reception buffer register 270. By lowering, the parallel data RDa is read from the reception buffer register 270.

  The arithmetic processing unit 210 receives signals indicating various states in the serial IF unit 220 from the serial management unit 280. Signals that the arithmetic processing unit 210 receives from the serial management unit 280 include a transmission buffer empty signal TEa that is set to a high level when the transmission buffer register 240 is cleared and a transmission shift register 250 that is performing serial transfer. There are a serial transfer signal TCa which is set to a high level and a reception data presence signal DFa which is set to a high level when data is stored in the reception buffer register 270.

  As shown in FIG. 3, the payout control board 70 includes a payout CPU 710 that performs various arithmetic processes in the payout control board 70, a serial IF chip 720 in which a circuit for serial communication with the outside is formed, and a parallel with the outside. And a parallel IF chip 730 on which a circuit for communication is formed. The exchange of commands with the main control board 20 is performed via the serial IF chip 720, and the exchange of ACK signals with the main control board 20 is carried out via the parallel IF chip 730.

  The serial IF chip 720 receives the parallel data TDb from the payout CPU 710, receives the data stored in the transmission buffer register 740 and the data stored in the transmission buffer register 740, converts the data into serial data SDba, and performs main control. A transmission shift register 750 for serial transfer to the board 20, a serial data SDab from the main control board 20, a reception shift register 760 for storing the data, and a data stored in the reception shift register 760 for receiving the data The CPU 710 includes a reception buffer register 770 that is readable and stored as parallel data RDb, and a serial management unit 780 that manages the operation state of each unit in the serial IF chip 720, and these are integrated into one chip. It has been. Transmission buffer register 740, transmission shift register 750, reception shift register 760, and reception buffer register 770 are registers each having a storage capacity of 1 byte.

  The serial management unit 780 allows the transmission shift register 750 and the transmission buffer register 740 to transfer data from the transmission buffer register 740 to the transmission shift register 750 when the transmission shift register 750 is not performing serial transfer. The data is erased from the transmission buffer register 740.

  The serial management unit 780 permits the transfer of data from the reception shift register 760 to the reception buffer register 770 when the data is not stored in the reception buffer register 770 with respect to the reception shift register 760 and the reception buffer register 770, and the payout The circuit is configured to erase the data from the reception buffer register 770 after the CPU 710 reads the parallel data RDb from the reception buffer register 770.

  Note that the timing at which the serial IF chip 720 samples the serially transferred command is determined based on a sampling clock obtained by dividing a clock signal for operating the main CPU 200 of the main control board 20. The frequency division ratio of the clock signal that determines the sampling clock can be set by the value of a register (not shown) included in the serial IF chip 720.

  The payout CPU 710 writes the parallel data TDb to the transmission buffer register 740 by lowering the write signal #WRb to the transmission buffer register 740, and lowers the read signal #REb to the reception buffer register 770. As a result, the parallel data RDb is read from the reception buffer register 770.

  The payout CPU 710 receives signals indicating various states in the serial IF chip 720 from the serial management unit 780. The payout CPU 710 receives a signal from the serial management unit 780 as a transmission buffer empty signal TEb that is set to a high level when the transmission buffer register 740 is cleared, and a high level when the transmission shift register 750 is performing serial transfer. There are a serial transfer in-progress signal TCb and a reception data presence signal DFb which is set to a high level when data is stored in the reception buffer register 770.

A- (2). Operation of the pachinko machine 10:
As one operation of the pachinko machine 10, an operation at the time of command transfer between the main control board 20 and the payout control board 70 will be described. The pachinko machine 10 according to the present embodiment can perform command transfer from the main control board 20 to the payout control board 70 and command transfer from the payout control board 70 to the main control board 20. In the following description, the operation at the time of command transfer from the main control board 20 to the payout control board 70 will be described in detail.

A- (2-1). Command transmission of main control board 20:
The operation of the main control board 20 that transmits a command to the payout control board 70 will be described. FIG. 4 is a flowchart showing command transmission processing executed by the arithmetic processing unit 210 of the main control board 20. The arithmetic processing unit 210 of the main control board 20 repeatedly executes a scheduled interrupt process at a predetermined interval (in this embodiment, 4 milliseconds (hereinafter referred to as ms)) in order to realize a process for controlling the progress of the game. As a part of the regularly executed interrupt process, the command transmission process shown in FIG. 4 is executed when a command is transmitted to the payout control board 70.

  When the command transmission process shown in FIG. 4 is started, the arithmetic processing unit 210 generates a command for the payout control board 70 (step S110). In this embodiment, the command for the payout control board 70 is a 2-byte command larger than 1 byte which is the storage capacity of each register of the serial IF unit 220.

  After the command is generated (step S120), it is determined whether or not “transmission buffer empty signal TEa is high level” and “serial transfer in-progress signal TCa is low level”, that is, “data is stored in transmission buffer register 240” It is determined whether or not “when there is no” and “when the transmission shift register 250 is not performing serial transfer” (step S120).

  If “the transmission buffer empty signal TEa is at the high level” and “the serial transfer in-progress signal TCa is at the low level” (step S120), the first byte which is the upper 1 byte among the 2 bytes of the generated command is transmitted. Write to the buffer register 240 (step S130). Thereafter, after waiting for a preset write standby period Lwa (step S140), the remaining lower 1 byte of the generated command is written into the transmission buffer register 240 (step S150). The transmission process ends.

  Here, the write standby period Lwa is from the transmission register delivery period Lbs, which is a period from the writing of the first byte of the command to the transmission buffer register 240 to the delivery of the first byte to the transmission shift register 250. Is a period in which a period during which the second byte write process (step S150 in FIG. 4) can be executed before the end of the scheduled interrupt process is left, and the period is prolonged until the start of the next scheduled interrupt process. is not. The write standby period Lwa is shorter than the serial transfer period Lsc which is a period until the serial transfer of the first byte of the command is completed, and is shorter than 4 ms which is the interval of the regular interrupt processing. . In this embodiment, the write standby period Lwa is set to 2.5 microseconds (hereinafter referred to as μs). The transmission register delivery period Lbs according to the hardware specifications of the serial IF unit 220 of this embodiment is about 1.25 μs. If the calculation processing time of the calculation processing unit 210 required for the second byte write processing (step S150 in FIG. 4) is equal to or longer than the transmission register delivery period Lbs of the serial IF unit 220, the command shown in FIG. The standby process (step S140) in the standby process is not necessary.

  FIG. 5 is a time chart showing the state of each signal on the main control board 20 when the command transmission process is executed. If it is determined in the command transmission process described above that “the transmission buffer empty signal TEa is at the high level” and “the serial transfer in-progress signal TCa is at the low level” (step S120 in FIG. 4), the command is sent to the parallel data TDa. Output of the first byte is started (timing ta1). Thereafter, the first byte of the command is written to the transmission buffer register 240 at the falling edge of the write signal #WRa (timing ta2, step S120 in FIG. 4).

  The transmission buffer register 240 delivers the first byte of the written command to the transmission shift register 250, and is cleared by the serial management unit 280 when the delivery is completed. The transmission shift register 250 outputs the first byte of the command received from the transmission buffer register 240 to the serial data Dab. In serial data Dab during serial transfer, each bit from the first bit D0 to the eighth bit D7 of the command follows the start bit ST, and finally a stop bit SP is output. Thus, when the serial transfer of the first byte of the command is started, the serial transfer in-progress signal TCa becomes high level (timing ta3).

  After writing the first byte of the command (timing ta2, step S120 in FIG. 4) and after waiting for the write standby period Lwa (step S140 in FIG. 4), as in the first byte of the command, the transmission buffer The second byte of the command is written to the register 240 (timing ta4, step S150 in FIG. 4).

  At this time, the transmission shift register 250 is serially transferring the first byte of the command and cannot receive the second byte of the command from the transmission buffer register 240. Therefore, the transmission buffer register 240 stores 2 of the written command. The byte is stored and held, and the transmission buffer empty signal TEa becomes low level (timing ta4).

  Thereafter, when the serial transfer of the first byte of the command by the transmission shift register 250 is completed, the transmission buffer register 240 delivers the second byte of the command to be stored to the transmission shift register 250. When this delivery is completed, the serial management unit 280 Cleared and the transmission buffer empty signal TEa becomes high level (timing ta5).

  Thereafter, the transmission shift register 250 outputs the second byte of the command received from the transmission buffer register 240 to the serial data Dab in the same manner as the first byte of the command (timing ta6 to ta7).

  A 2-byte command is transmitted to the payout control board 70 by the operation of the main control board 20 described above. The main control board 20 according to the present embodiment retransmits the command when there is no response of the ACK signal from the payout control board 70 within a predetermined period after transmitting the command to the payout control board 70.

  Conversely, the operation of the payout control board 70 that transmits a command to the main control board 20 is replaced with the payout CPU 710 in place of the arithmetic processing unit 210, the transmission buffer register 740 in place of the transmission buffer register 240, and the transmission shift register 250. Instead, the transmission shift register 750 is realized by performing the same operation as that of the main control board 20 described above.

  In this embodiment, the main CPU 200 repeatedly executes the scheduled interrupt process at intervals of 4 milliseconds, whereas the serial IF unit 220 executes serial transfer at a transfer rate of 1200 bps (Bit Per Second). Accordingly, in this embodiment, the time for serial transfer of the 2-byte command by the serial IF unit 220 is about 16.7 ms, and the main CPU 200 repeatedly executes the scheduled interrupt processing about four times during that time. As described above, the main CPU 200 can leave the serial transfer of the command to the payout control board 70 to the serial IF unit 220 once the command is written in the transmission buffer register 240. The transfer rate of 1200 bps in serial transfer is a transfer rate that can ensure the reliability of command transfer with respect to electrical noise, and can be transferred serially by isolation using a relatively inexpensive photocoupler. The transfer rate.

  Note that the main control board 20 executes other control processing such as storing winning information if there is a win without interrupting the control processing during serial transfer (a state in which there is a command in the transmission buffer register 240). In the case of a pachinko machine, the number of game balls launched into the game board 13 is restricted to a maximum of 100 per minute, so the launch interval of game balls is about 600 ms. Therefore, even if game balls continuously win the winning opening 61, the main control board 20 can process the detection information of the game balls without delay and serially transfer the prize ball command to the payout control board 70.

A- (2-2). Receipt control board 70 command reception:
The operation of the payout control board 70 that receives a command from the main control board 20 will be described. FIG. 6 is a flowchart showing command reception processing executed by the payout CPU 710 of the payout control board 70. The payout CPU 710 of the payout control board 70 executes the command receiving process shown in FIG. 6 when receiving a command from the main control board 20 as part of controlling the payout of game balls.

  When the command receiving process is started, the payout CPU 710 determines whether or not “the received data present signal DFb is at a high level”, that is, “when data is stored in the receiving buffer register 770”. (Step S210).

  Here, when it is determined in the command receiving process that “the received data present signal DFb is at the high level” (step S210), the 2-byte command transmitted from the main control board 20 to the payout control board 70. Of these, the first byte of the command is stored in the reception buffer register 770.

  If “the received data present signal DFb is at the high level” (step S210), the first byte of the command stored in the reception buffer register 770 is read (step S220). Thereafter, the second byte of the command stored in the reception buffer register 770 is read via the reception shift register 760 (step S240), and the command reception process is terminated.

  FIG. 7 is a time chart showing the state of each signal on the payout control board 70 when the command receiving process is executed. When the first byte of the command is output to the serial data Dab by the command transmission process in the main control board 20 described above (timing tb1 to tb2), the first byte of the command is stored in the reception shift register 760 and then received. The first byte of the command is transferred to the buffer register 770, and the received data presence signal DFb becomes high level.

  When the second byte of the command is output to the serial data Dab following the first byte of the command (timing tb1 to tb2), the second byte of the command is stored in the reception shift register 760. At this time, since the first byte of the command has not been read from the reception buffer register 770 and the reception buffer register 770 has not been cleared by the serial management unit 780, the reception shift register 760 has received the second byte of the command. Retain memory.

  Thereafter, in the command reception process shown in FIG. 6, when it is determined that “the reception data present signal DFb is at the high level” (step S210 in FIG. 6), the reception buffer #REb The first byte of the command is output from the register 770 to the parallel data RDb, and the first byte of the command is read from the reception buffer register 770 by the payout CPU 710 (timing tb5 to tb6, step S220 in FIG. 6).

  When the reading of the first byte of the command is completed, the reception buffer register 770 is cleared by the serial management unit 780, and the reception data presence signal DFb becomes low level (timing tb6). Thereafter, when the second byte of the command is transferred from the reception shift register 760 to the reception buffer register, the reception data presence signal DFb becomes high level (timing tb7). Thereafter, similarly to the first byte of the command, the second byte of the command is read from the reception buffer register 770 (timing tb8 to tb9, step S240 in FIG. 6).

  By the operation of the payout control board 70 described above, a 2-byte command transmitted from the main control board 20 is received. The payout control board 70 of this embodiment transmits an ACK signal to the main control board 20 during a predetermined period after receiving a command from the main control board 20.

  In this embodiment, the sampling timing of the serial IF chip 720 is set to 19.2 kilohertz (kHz), which is 16 times the transfer rate (1200 bps). In the present embodiment, the serial IF chip 720 performs sampling three times for each of the start bit, each data bit of the command, and each bit of the stop bit, and determines the majority of the values detected by these three samplings. As a result, the reliability of command reception is improved.

  Conversely, the operation of the main control board 20 that receives a command from the payout control board 70 is changed to the arithmetic processing unit 210 instead of the payout CPU 710, the reception shift register 260 and the reception buffer register 770 instead of the reception shift register 760. Instead, the reception buffer register 270 is realized by performing the same operation as that of the payout control board 70 described above.

  According to the pachinko machine 10 of the first embodiment described above, a command that can be serially transferred by the serial IF unit 220 for 2 bytes while the main CPU 200 of the main control board 20 performs one scheduled interrupt process. The data can be stored in the transmission buffer register 240 and the transmission shift register 250 of the serial IF unit 220, and the period related to the serial transfer of commands by the main CPU 200 of the main control board 20 can be shortened. As a result, it is possible to suppress the progress of other control processes on the main control board 20 and the complexity of the control program executed on the main control board 20. Therefore, smooth game control can be realized when commands are divided and serially transferred.

B. Other embodiments:
As mentioned above, although embodiment of this invention was described, this invention is not limited to such embodiment at all, Of course, it can implement with various forms within the range which does not deviate from the meaning of this invention. is there. For example, the application of the present invention is not limited to a pachinko machine, but may be applied to a gaming machine including a plurality of control boards such as an arrangement ball and a slot machine. Further, the board that has not received the command normally may request the retransmission of the command to the board that has transmitted the command. In this case, the retransmission request may be performed by serial transfer or may be performed by parallel transfer. As a result, the reliability of command transfer can be improved.

  Further, the present invention may be applied to other substrates such as the sub control substrate 40 and the symbol control substrate 30. For example, the present invention may be applied to command transfer between the main control board 20 and the sub control board 40. As a command from the main control board 20 to the sub control board 40, there is an effect command for instructing the contents of effect of moving image display on the LCD 35.

  For example, the main control board 20 generates, as a group of commands, a total of 4 bytes of commands consisting of a 3-byte instruction command that defines the production instruction and a 1-byte check command that calculates the checksum of the instruction command. A group of 4-byte commands may be divided into two portions and serially transferred every two bytes by two scheduled interrupt processes.

  The main control board 20 also generates a total of 8 byte commands as a group of commands, including a 4-byte inversion command obtained by inverting each bit of the 3-byte instruction command and the 1-byte check command, A group of commands of 8 bytes may be divided into 4 times, and serial transfer may be performed every 2 bytes by 4 scheduled interrupt processes.

1 is a front view showing an overall configuration of a pachinko machine 10. FIG. 2 is a block diagram showing an electrical schematic configuration of a pachinko machine 10. FIG. 4 is a block diagram showing details of an electrical configuration of a main control board 20 and a payout control board 70. FIG. 3 is a flowchart showing command transmission processing executed by an arithmetic processing unit 210 of the main control board 20. It is a time chart which shows the mode of each signal in the main control board 20 at the time of command transmission processing being performed. 7 is a flowchart showing command reception processing executed by a payout CPU 710 of the payout control board 70. It is a time chart which shows the mode of each signal in the payout control board 70 at the time of command reception processing being performed.

Explanation of symbols

10 ... Pachinko machine 11 ... Outer frame 12 ... Inner frame 13 ... Game board 14 ... Glass frame 15 ... Handle 20 ... Main control board 30 ... Design control board 35 ... LCD
40 ... Sub-control board 45 ... Speaker 55, 56, 57, 58, 59 ... Electric decoration 61 ... Winning slot 65 ... Game ball sensor 66 ... Game board drive unit 70,70b ... Discharge control board 75 ... Discharge driver 90 ... Card unit 200 ... Main CPU
210: arithmetic processing unit 220 ... serial IF unit 230 ... parallel IF unit 240 ... transmission buffer register 250 ... transmission shift register 260 ... reception shift register 270 ... reception buffer register 280 ... Serial management unit 710 ... Discharge CPU
720 ... Serial IF chip 730 ... Parallel IF chip 740 ... Transmission buffer register 750 ... Transmission shift register 760 ... Reception shift register 770 ... Reception buffer register 780 ... Serial manager

Claims (1)

A gaming machine comprising a main control board that controls the progress of a game, and a lower-level control board that controls a predetermined component related to the game based on a command from the main control board,
At least one control board of the main control board and the lower control board is:
In order to realize predetermined control processing in the control board, interrupt processing is repeatedly executed at predetermined intervals, and a command of 2 bytes or more for the other control board is generated as part of the repeatedly executed interrupt processing. A processing unit,
A transmission serial communication unit that executes serial transfer of the generated command to the other control board in units of 1 byte;
The transmission serial communication unit includes:
A buffer register having a storage capacity of 1 byte, receiving the generated command from the transmitting central processing unit, and storing the command;
A shift register having a storage capacity of 1 byte, receiving a command stored in the buffer register, and storing the command to convert the command into serial data;
The transmission-side central processing unit sends the first command of the first byte of the two bytes in the command of two bytes or more to the transmission serial in a predetermined one interrupt process among the interrupt processes repeatedly executed. In addition to passing to the communication unit, before the serial transfer of the first command is completed within the predetermined one-time interrupt processing, the subsequent command of the second byte of the two bytes is transferred to the transmission serial communication unit. ,
The transmission serial communication unit stores the transferred head command in the shift register via the buffer register in the predetermined one interrupt process, and stores the head command in the shift register. The succeeding command passed in the predetermined one interrupt process is stored in the buffer register ,
The time required for serial transfer of 1 byte by the transmission serial communication unit is longer than the interval at which the interrupt process is executed,
After the completion of one interrupt process in which the head command and the subsequent command are delivered from the transmission side central processing unit to the transmission serial communication unit, the transmission serial communication unit follows the completion of serial transfer of the preceding command. A gaming machine that executes serial transfer of the subsequent command .

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