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vbehravan wrote: > > > Hi all, > We develop a TMS320C6713 board. The C6713 code has been tested using > XDS510usb JTAG emulator and everything is O.K. > > To finalize our system, we switch to HPI boot loading and load the > C6713 code using HPI. > In the preliminary stages of our code, we initialize the PLL Multiply > Register and PLL control/status register. > As the execution of the code reaches the following line: > > *(unsigned volatile int*)PLLCSR = 0x01; > > the execution does not proceed correctly. > If this line ignored (commented), the subsequent section of our code > executed correctly BUT OFCOURSE WITH WRONG CLOCK RATE. > > Does anyone knows what is the problem? > Hi, it's a bit hard to help if you only give one code line :-) You enable the PLL, but maybe it is not yet stable. Have a look at spru233c.pdf. If have written some code whtch does the same. I remember there are two delays after the PLL registers have been set. I don't have the code at the moment. But the timming should be mentioned in the pll section of the 6713 data sheet. HTH Gustl |