Switches and Jumpers#
Motivation
The carrier board has several dip switches on the back to change the boot mode and to activate or deactivate the power supply for various functions. The settings of the switches are chosen regarding the “TRM-TEBT0808-01” manual.
SW1 - Boot Mode#
Adjustments for booting (Boot Mode Settings ->page 7 of TRM-TEBT0808.01):
The
default configurationfor the UltraZohm is using SD1.
SW1-1 |
SW1-2 |
SW1-3 |
SW1-4 |
Bootmode Hex |
Bootmode |
Comment |
|---|---|---|---|---|---|---|
M0 |
M1 |
M2 |
M3 |
|||
ON |
ON |
ON |
ON |
0x0 |
PS Main JTAG (TE0790 USB JTAG) |
Needed for SPI Flash Programming |
ON |
OFF |
ON |
ON |
0x2 |
SPI Flash (dual parallel, 4bit x 2, 32bit Addressing) |
Default |
0x3 |
SD0: Supports SD 2.0. |
MIO[25:13] |
||||
|
|
|
|
0x5 |
SD1: Supports SD 2.0. |
MIO[51:38] |
A more detailed description is given in Table 9 of <https://wiki.trenz-electronic.de/display/PD/TE0808+TRM>
SW2 - Power Mode First Part#
EN_GT is disabled, because of a Bug in the layout for “EN_GT_L” -> Anyway, this is for FireFly and not necessary so far.
The
default configurationfor the UltraZohm is highlighted.
Power Mode |
SW2-1 |
SW2-2 |
SW2-3 |
SW2-4 |
|---|---|---|---|---|
EN_PSGT |
EN_GT_R |
EN_GT_L |
EN_PLL_PWR |
|
Power Enabled |
OFF |
OFF |
|
|
Power Disabled |
|
|
ON |
ON |
SW3 - Power Mode Second Part#
All Switches are changed to “Off” in order to give 3.3V to the Enable Pins and switch on this DC/DC converters on the Trenz module.
The
default configurationfor the UltraZohm is highlighted.
Power Mode |
SW3-1 |
SW3-2 |
SW3-3 |
SW3-4 |
|---|---|---|---|---|
EN_DDR |
EN_LPD |
EN_PL |
EN_FPD |
|
Power Enabled |
|
|
|
|
Power Disabled |
ON |
ON |
ON |
ON |
Default adjustments for the UltraZohm#
See also: