Messages

1

NXP^TM M522XX, KINETIS and i.MX RT / Re: CRYSTAL_FREQ

« on: February 15, 2010, 12:18:55 PM »

Sorry Mark I could not explain my set register.

Now I working with 50 MHz, this is my register configuration in app_hw_m5223x.h

//#define DISABLE_PLL

#define CRYSTAL_FREQ      50000000
#define PRE_DIVIDER      5
#define OSCCLK         (CRYSTAL_FREQ / PRE_DIVIDER)
#define PLL_MUL         10

I get a compiler error in this part

    #if PLL_OUTPUT_FREQ_INT > MAX_PLL_FREQUENCY
        #error PLL frequency too high!!   
    #endif

Then I no enable last part "//#error PLL frequency too high!!", but I don't have ETH comunication

Regards

Edwin

2

NXP^TM M522XX, KINETIS and i.MX RT / Re: CRYSTAL_FREQ

« on: February 15, 2010, 09:50:07 AM »

Hi Mark,

I execute the changes but now I don't have ethernet comunication.

With CRYSTAL_FREQ 60 MHz I defined DISABLE_PLL, and with CRYSTAL_FREQ 50 MHz I defined PLL_MUL 10, But I don't have ETH comunication.

Thanks

Edwin

3

NXP^TM M522XX, KINETIS and i.MX RT / CRYSTAL_FREQ

« on: February 12, 2010, 02:16:04 PM »

I am using a MCF52235 with a CRYSTAL_FREQ 25000000 and I am using Ethernet comunication.

I need increase the clock to 50 or 60 MHZ, can you help me to change the next register configuration

        #define CRYSTAL_FREQ                   25000000                  // 25 MHz oscillator / crystal input
        #define PRE_DIVIDER                    5                         // warning: in first silicon this can not be changed!
        #define OSCCLK                         (CRYSTAL_FREQ / PRE_DIVIDER)
        #define PLL_MUL                        12                        // 60MHz operation

Thanks

Edwiin

4

NXP^TM M522XX, KINETIS and i.MX RT / Re: AT45DB041D

« on: October 30, 2008, 12:42:42 PM »

Thanks Mark,

But I am using a similar hardware configuration at uTaskerSPI_EEPROM.pdf, I don't think that the wiring is the problem.

Thanks for your help.

5

NXP^TM M522XX, KINETIS and i.MX RT / AT45DB041D

« on: October 29, 2008, 05:40:38 PM »

Hello,

I am using a AT45DB041D memory with M52235EVB, but when I read the Manufacturer ID, I get 0x1E rather than 0x1F, the others three bytes 0x00, I don't understand what's happening

Thanks in advance.