TDA4VM: System clock cofiguration

Hi Menghai,

Menghai Zhao said:

Is SCI server&client configuration an requirement for TDA4 MCU10 to run at 1GHz?

SCI client & server configuration is mandatory since the SDK components has dependency on it for different services like PLL, clock config, RM etc. This is needed irrespective of the speed at which CPU is running.

Menghai Zhao said:

When we close the cpu cache, the instructions executed in 10 seconds are about 17645949, while the figures become about 1066985962 when we open the cache. My question is that whether the cpu cache is mandatory for cpu to run at 1GHz?

Using the CPU cache increases the number of instructions executed in a given time as it reduces the access time, but again it is not a mandatory requirement to run MCU1_0 at 1GHz.

Regards,
Parth

1. One more question, if I have configured PLL and clock in the SBL, then whether do I need to run SCI client/server in the MCU10 app-image? In detailed, does the code as following will work at 1GHz well if I have configured the PLL&Clock in the SBL as TI demo without no further configuration in the app-image running on mcu1_0?

void main(void)

{

    static int count;

    while (1)

    {

        count++;

    }

}

Hi Menghai,

Menghai Zhao said:

does the code as following will work at 1GHz well if I have configured the PLL&Clock in the SBL as TI demo without no further configuration in the app-image running on mcu1_0?

This should work as long as you are configuring the PLL for 1GHz.

Regards,
Parth

Dear Expert,

    So I don't need to reconfure the pll or run the sci client in the app-image, is it right?