Olimex Open Source Hardware Embedded ARM Linux Single board computer with i.MX233 ARM926J @454Mhz IMX233-OLINUXINO-MICRO IMX233-OLINUXINO-MICRO 用户手册
产品代码
IMX233-OLINUXINO-MICRO
OLIMEX© 2012
OLinuXino-MICRO user's manual
6.1.1 UART debug
The first one is a debug UART interface – U_DEBUG. You can use our USB-SERIAL-CABLE
for debugging via the UART.
for debugging via the UART.
In order to avoid SD card malfunction, when using the USB-SERIAL-CABLE-F with
OLinuXino-MICROit is advisable to first insert the iMX233-OLinuXino-SD card and then
power the board (if using battery also press the PWR button). Wait 4-5 seconds and then
connect the USB-SERIAL-CABLE-F.
OLinuXino-MICROit is advisable to first insert the iMX233-OLinuXino-SD card and then
power the board (if using battery also press the PWR button). Wait 4-5 seconds and then
connect the USB-SERIAL-CABLE-F.
Please also check “2.4 Powering the board” for detailed info.
Note on how to use the U_DEBUG with USB-SERIAL-CABLE-F which has RED GREEN
BLUE wires GND=BLUE, RX(INPUT)=GREEN, TX(OUTPUT)=RED. You have to connect
to OLinuXino-MICROU_DEBUG connector in this sequence:
BLUE wires GND=BLUE, RX(INPUT)=GREEN, TX(OUTPUT)=RED. You have to connect
to OLinuXino-MICROU_DEBUG connector in this sequence:
BLUE wire to pin.3 (GND)
GREEN wire to pin.2 (TX)
RED wire to pin.1 (RX)
GREEN wire to pin.2 (TX)
RED wire to pin.1 (RX)
U_DEBUG
Pin # Signal Name
Processor Pin #
1 PWM0/DUART_RXD
125
2 PWM1/DUART_TXD
126
3 GND
30, 35, 98, 105, 112, 118
4 DEBUG
84
You can also check the pin names at the bottom of the board under the U_DEBUG header.
6.1.2 SJTAG debug
The second interface is the Serial JTAG (SJTAG) one-wire interface. It works with various external
JTAG debugger dongles through a Freescale-defined FPGA/CPLD. SJTAG supports the Green
Hills Slingshot and ETM probe debugger dongles, as well as those made by ARM, Abatron, and
Lauterbach.
JTAG debugger dongles through a Freescale-defined FPGA/CPLD. SJTAG supports the Green
Hills Slingshot and ETM probe debugger dongles, as well as those made by ARM, Abatron, and
Lauterbach.
Note that the SJTAG interface comes without plastic header mounted.
The HW_DIGCTL_CTRL_USE_SERIAL_JTAG bit in the digital control block selects whether the
one-wire serial JTAG interface or the alternative six-wire parallel JTAG interface is used. There are
other options in the digital control block which might interest you and our advice is to check the
one-wire serial JTAG interface or the alternative six-wire parallel JTAG interface is used. There are
other options in the digital control block which might interest you and our advice is to check the
Page 24 of 47