Справочник Пользователя для National Instruments NI SPEEDY-33

© National Instruments Corporation

The flash boot jumper (J12) controls whether the DSP will attempt to boot 
from the flash memory. The default setting is for the DSP to boot from flash 
memory, described in the 

 section. You must set the 

NI SPEEDY-33 to the enable flash boot setting to run the device in 
standalone mode.

If the NI SPEEDY-33 will only be used with the USB connection to PC, the 
flash boot can be disabled, though it is not recommended. Table 2-3 shows 
the possible flash boot settings.

The flash write enable jumper (J5) controls whether the DSP writes to the 
flash memory as described in the 

 section. This configuration 

setting is useful for write protecting the DSP algorithm for production 
purposes. When the flash write is disabled, the DSP cannot modify the 
contents. Table 2-4 shows the possible flash write enable settings.

Table 2-3.  Flash Boot Jumper (J12) Settings

Flash Boot

Position 1

Position 3

Table 2-4.  Flash Write Enable Jumper (J5) Settings

Flash Write Enable

Position 1

Position 3

1

2

3

1

2

3

1

2

3

1

2

3