Forgot to CC the list... my bad... -- snip --
Hi, Am Dienstag, den 03.04.2012, 08:23 +0200 schrieb [email protected]: > I thought that JTAG depends on working CPU only but NOT on BIOS. > Is that so ? > Or BIOS can prevent/mask the values coming to/from SDRAM? I'm no expert on MIPS here, but quite familiar with ARM's world. Normally, JTAG doesn't depend on any BIOS running. But that may depend hardly on the actual SoC. Maybe there is some mechanism preventing access or pin multiplexing options need to be set. My guess is that the BIOS brings up the SDRAM controller in the chip, so that after running you can access the SDRAM. But without the BIOS running, YOU need to setup the SDRAM controller yourself (through system peripheral accesses over JTAG). And that absolutely depends on your SoC and the connected SDRAM. Cheers, Manuel -- Manuel Borchers Web: http://www.matronix.de eMail: [email protected] ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
