Hello,
I am looking for help about booting problems in a C6414 DSP. I make the
configuration for the DSP to boot on the EMIFB bus reading the first 1kB of my
Flash. But when I check the signal on the /BCE1 pin it is remaining high instead
of going low to start reading the flash (what should be done automatically by
the chip explain the datasheet of the DSP). I already verify my clock input
signal, the configuration pin on start up, the PLL input pin configuration, the
power supply voltages, and also if the soldering of the DSP was good. I
don't know what I can check to resolved this error.
For the flash I am using a ISP flash from ST, that I can directly program
through a JTAC interface. For the DSP it the silicon version 2.0 (600MHz and
1.4V V_CORE).
I thank you in advance for any idea.
Many Thanks
Xavier Queffelec
University of Ulm Abt. MRM
Albert Einstein Allee 41
89081 Ulm (Germany)
Booting problem on a self made board base on a C6414 DSP
Started by ●September 14, 2005
Reply by ●September 14, 20052005-09-14
Xavier,
If you have a good clock, power [I/O & core], ground, ready signal,
reset [that goes away] and **CORRECT BOOT MODE CONFIGURATION**, it should access
the FLASH. FYI - The boot process on c6414 devices is driven by an
internal state machine.
I don't remember off hand, but you might want to check to see if EMIF
B has an external 'hold' signal also.
FYI - When bring up a new board for the first time, I like to program an
easily recognizable pattern in the first 1k of flash to verify that the
address and data pins are behaving properly before I try to execute code.
mikedunn
x...@uni-ulm.de wrote:
x...@uni-ulm.de wrote:
Hello,
I am looking for help about booting problems in a C6414 DSP. I make the configuration for the DSP to boot on the EMIFB bus reading the first 1kB of my Flash. But when I check the signal on the /BCE1 pin it is remaining high instead of going low to start reading the flash (what should be done automatically by the chip explain the datasheet of the DSP). I already verify my clock input signal, the configuration pin on start up, the PLL input pin configuration, the power supply voltages, and also if the soldering of the DSP was good. I don't know what I can check to resolved this error.
For the flash I am using a ISP flash from ST, that I can directly program through a JTAC interface. For the DSP it the silicon version 2.0 (600MHz and 1.4V V_CORE).
I thank you in advance for any idea.
Many Thanks
Xavier Queffelec
University of Ulm Abt. MRM
Albert Einstein Allee 41
89081 Ulm (Germany)
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