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12.5
FPGA Control Function
The FPGA standard circuit and user circuits can be started or stopped.
Starting FPGA control
FPGA control is started by turning off and on FPGA control start request (RY0). The starting order of the FPGA is shown
below.
FPGA control start request
(RY0)
FPGA controlling flag
(RX0)
Write/read data control
register
(usr_wrdat_ctrl) Writing data
control 0, 1
FPGA register
(user circuit parameter)
User circuit
register setting value
User circuit always write
register 15
(usr_alwreg_0F.b0) FPGA
control start process
completion
Internal operation start/stop
FPGA internal part
ADC
DAC
Logging
Implemented in FPGA module
Executed by the program.
b0, b1 of Write/read data control register (usr_wrdat_ctrl) (FPGA register address: 1000_A000H) are turned on, and the writing data (usr_wreg_000 to
usr_wreg_1FF) are reflected in the user circuit.
A clock is supplied to the standard circuit and user circuit, and FPGA control starts.
ADC and DAC are set.
b0 of Always write register 15 (usr_alwreg_0F) (FPGA register address: 1000_A02EH) of the user circuit part stores Start processing completed (1).
FPGA control flag (RX0) turns on.
ON
OFF
OFF
Ò
ON
OFF
Ó
(Setting value A)
Stop
A/D conversion disable
D/A conversion disable
Stop
(Setting value B)
(Setting value B)
In process of stopping or starting
A/D conversion disable In
process of ADC setting
Ô
D/A conversion disable In
process of DAC setting
Logging in progress
ON
Ö
Õ
FPGA control start
process completion
Start
A/D conversion enable
D/A conversion enable
12 FUNCTIONS
12.5 FPGA Control Function
12
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