TE0320 is provided with 4 system DIP slide switches as shown in Figure 32: S1A, S1B, S1C, S1D.
Figure 32: DIP slide switches S1[A].
Please note the 4 switch labels are on one side and the <ON> label is on the opposite side.
DIP slide switches S1[A] condition the value of some system signals as described in Table 13.
switch |
S1 label |
signal name |
<OFF> |
<ON> |
S1A |
1 |
EEPROM serial data |
the USB FX2 microcontroller CANNOT read / write the serial EEPROM |
the USB FX2 microcontroller can read / write the serial EEPROM |
S1B |
2 |
M2 |
mode pin M2 = 1 |
M2 = 0 |
S1C |
3 |
M1 |
mode pin M1 = 1 |
M1 = 0 |
S1D |
4 |
/MR (master reset) |
module reset |
module running |
Table 13: S1X settings description.
DIP slide switches S1A is ON by default, to allow the USB FX2 microcontroller to read the serial EEPROM and enumerate as a custom/specific USB device. When DIP slide switches S1A is ON, the USB FX2 microcontroller can (re)write the serial EEPROM to, for example, store a (new) custom/specific firmware. When DIP slide switch is OFF, the USB FX2 microcontroller cannot read the serial EEPROM and enumerates as a generic USB device.