Difference between revisions of "i.MX53 SODIMM PC Loading bootloader"

Revision as of 21:02, 31 August 2021

This page shows the steps how to initiate On-Chip Debugging and load bootloader into i.MX53 SODIMM PC - Development kit.

JTAG Debugger and Programmer Installation

Connect JTAG Cable to USB port on a computer. JTAG device should be automatically recognized and prepared for usage.
Download OpenOCD v0.6.0 software
Unzip the files

Running Open On-Chip Debugger

Locate the folder where the software was unpacked. Run OpenOCD utility in command line (by using Total Commander or Windows Command Prompt):

openocd.exe -f vmx53w.cfg

Debugging session is opened and running:

Connecting to Open On-Chip Debugger session

Using Windows Telnet Client

Click on Start/Run (or press Windows key + R), and open the Telnet session using 4444 port:

telnet localhost 4444

Telnet session is active and ready for use:

Using terminal emulator

To open Telnet service using TeraTerm program, click on File/New Connection, select TCP/IP option and type 4444 into TCP port# field. The IP address to connect to is localhost (127.0.0.1):

TeraTerm session is running and ready for use:

Establishing serial connection

Open TeraTerm program, click on File/New Connection, choose Serial and select the port which was assigned to the serial console:

A successful connection is created only if the following serial port settings are applied (115200, 8n1):

Selecting boot mode

In order to disable direct boot, H902 jumper (BOOTMODE) must be placed between pins 1 and 2. This enables serial boot and loading files over Telnet service. The main reason for using this mode is to rewrite bootloader image in case of update or recovery.

Direct Boot (Boot from E-Fuses) is selected when BOOTMODE jumper pins 2 and 3 are shortened. This is the default mode of module operation.


Serial Boot	Direct Boot (Boot from E-Fuses)

Loading bootloader

The following commands need to be placed inside Localhost Telnet session and executed one by one. Console logs are included for comparison:

reset_halt

step

resume

vmx53_init

boot

Barebox was loaded into the i.MX53 SODIMM PC Module SRAM and executed:

As this fresh Barebox is stored in SRAM only at this point, switching the module off causes the bootloader to be erased. To store the new Barebox and use it automatically after power on, image flashing is required. Follow this section to do so.

@@ Line 16: / Line 16: @@
 openocd.exe -f vmx53w.cfg
 </syntaxhighlight>
-[[image:i.MX25_SODIMM_Base_Board-JTAG_debugging.jpg|600px]]<br /><br />
+[[image:i.MX25_SODIMM_Base_Board-JTAG_debugging.png|580px]]<br /><br />
 Debugging session is opened and running:<br />
-[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_running.jpg|600px]]<br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_running.png|580px]]<br />
 == Connecting to Open On-Chip Debugger session ==
@@ Line 27: / Line 27: @@
 telnet localhost 4444
 </syntaxhighlight>
-[[image:i.MX25_SODIMM_Base_Board-Telnet.jpg|250px]]<br /><br />
+[[image:i.MX25_SODIMM_Base_Board-Telnet.png|400px]]<br /><br />
 Telnet session is active and ready for use:<br />
-[[image:i.MX25_SODIMM_Base_Board-Telnet_ready.jpg|600px]]<br />
+[[image:i.MX25_SODIMM_Base_Board-Telnet_ready.png|580px]]<br />
 === Using terminal emulator ===
 To open Telnet service using TeraTerm program, click on File/New Connection, select TCP/IP option and type '''4444''' into TCP port# field. The IP address to connect to is '''localhost''' (127.0.0.1):<br />
-[[image:i.MX25_SODIMM_Base_Board-Telnet_session.jpg|400px]]<br /><br />
+[[image:i.MX25_SODIMM_Base_Board-Telnet_session.png|400px]]<br /><br />
 TeraTerm session is running and ready for use:<br />
-[[image:i.MX25_SODIMM_Base_Board-Telnet_ready_TeraTerm.jpg|600px]]<br />
+[[image:i.MX25_SODIMM_Base_Board-Telnet_ready_TeraTerm.png|580px]]<br />
 == Establishing serial connection ==
 Open TeraTerm program, click on File/New Connection, choose Serial and select the port which was assigned to the serial console:<br />
-[[image:i.MX25_SODIMM_Base_Board-Serial_connection.jpg|400px]]<br /><br />
+[[image:i.MX25_SODIMM_Base_Board-Serial_connection.png|400px]]<br /><br />
 A successful connection is created only if the following serial port settings are applied (115200, 8n1):<br />
-[[image:i.MX25_SODIMM_Base_Board-Serial_console_settings.jpg|600px]]<br /><br />
+[[image:i.MX25_SODIMM_Base_Board-Serial_console_settings.png|580px]]<br /><br />
 == Selecting boot mode ==
@@ Line 64: / Line 64: @@
 reset_halt
 </syntaxhighlight>
-[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_reset_halt.jpg|600px]]<br /><br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_reset_halt.png|580px]]<br /><br />
 <syntaxhighlight lang="bash">
 step
 </syntaxhighlight>
-[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_step.jpg|600px]]<br /><br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_step.png|580px]]<br /><br />
 <syntaxhighlight lang="bash">
 resume
 </syntaxhighlight>
-[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_resume.jpg|600px]]<br /><br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_resume.png|580px]]<br /><br />
 <syntaxhighlight lang="bash">
 vmx53_init
 </syntaxhighlight>
-[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_init.jpg|600px]]<br /><br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_init.png|580px]]<br /><br />
 <syntaxhighlight lang="bash">
 boot
 </syntaxhighlight>
-[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_boot.jpg|600px]]<br /><br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-OpenOCD_boot.png|580px]]<br /><br />
 Barebox was loaded into the i.MX53 SODIMM PC Module SRAM and executed:<br />
-[[image:i.MX53_SODIMM_PC-Development_Kit-Bootloader_loaded.jpg|600px]]<br /><br />
+[[image:i.MX53_SODIMM_PC-Development_Kit-Bootloader_loaded.png|580px]]<br /><br />
 As this fresh Barebox is stored in SRAM only at this point, switching the module off causes the bootloader to be erased. To store the new Barebox and use it automatically after power on, image flashing is required. Follow [[i.MX53_SODIMM_PC_Flashing_images|this section]] to do so.