OMAP 3730 (Gumstix)

Hi David,

If you are using the GBL_getFrequency() function you are probably read for the GBL_setFrequency() function in the TMS320C6000 DSP/BIOS 5.x API reference guide at the link:

http://www.ti.com/lit/ug/spru403s/spru403s.pdf

but Note that GBL_setFrequency does not affect the PLL, and therefore has no effect on the actual frequency at which the DSP is running. It is used only to make DSP/BIOS aware of the DSP frequency you are using. Therefore you should change the DPLL2 settings and ARM frequency which is related to DSP freq. If you wish to clock the DSP at 520 MHz you should clock the ARM at 600 MHz.

For more details about DPLL2 read in the Technical reference manual - section 3 - Power, Reset, and Clock Management at the link:

http://www.ti.com/lit/ug/sprugn4r/sprugn4r.pdf

BR

Tsvetolin Shulev