TE0320 is provided with 4 system DIP slide switches as shown in Figure 32: S1A, S1B, S1C, S1D.
: D
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.