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Discussion Groups | TMS320C6x | Booting problem on a self made board base on a C6414 DSP

Technical discussions about the TI C6000 DSPs (including the c62x, c64x and c67x DSPs).

  

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Booting problem on a self made board base on a C6414 DSP - xavi...@uni-ulm.de - Sep 14 7:45:00 2005



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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Re: Booting problem on a self made board base on a C6414 DSP - Mike Dunn - Sep 14 9:09:00 2005

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:
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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