Specifications

DM6804
15
Initial Duty Cycle - Enter a value between 0 and 1 to set the initial duty cycle.
The Duty Cycle defines the duty cycle at the initialization phase of the driver
similar to a initial value of an integrator.
Initial Toggle State - From the list, choose high or low. The Initial Toggle
State sets the initial digital level (high or low) of the output. For example, if
the Initial Duty Cycle is 0.25 and the Initial Toggle State is High, the first 25%
of the period will have a high level and the last 75% will have a low level.
Sample Time - Enter the base sample time or a multiple of the base sample
time. The sample time indicates the update rate of registration on the input
(Duty Cycle)
BaseAddress -Enter the base address of the board. This entry must
corresponds to the DIP-switch settings on the board. For example, if the base
address is 300 (hexadecimal), enter
0x300
DM6804 Counter PWM & ARM
The DM6804 has one AM9513A chip with 5 counters.
The DM6804 PWM & ARM driver programs the AM9513A for PWM or
disarmed signal generation (a square wave with fixed frequency and variable
duty cycle). Additionally the driver allows to arm and disarm the counter by the
second block input.
Scaling Input to Output
Driver Block Parameters
Counter. From the list, choose 1, 2, 3, 4, or 5 to select which counter is used
with this driver block. In each case, one block is needed for each counter.
Frequency Base - From the list, choose F1=5MHz, F2=500kHz, F3=50kHz,
F4=5kHz, or F5=500Hz to set the base frequency.
Hardware Output Block Input Data Type Scaling
TTL Duty cycle: double
Arm: double
<0.5 disarmed
>
0.5 armed