SPC574S64 Crystal Confuguration

[VP.6]

Hi

I am working on SPC574S64 Controller, A20MHz Crystal is used in our board

I tried to configure it in the SPC5Studio

I tried using one of the example code for the configuration where a 40MHz is used in the configuration and I tried to change to 20MHz, but could not succeed

I tried modifying the dependent registers, but still nothing worked out.

It is showing an error as below

I could see the ranges are as below for them

​

I tried changing the PLL0 Settings but nothing gave me the positive result

Could you kindly suggest settings for a 20MHz crystal

[ODOUV.1 · Accepted solution]

It seems the clock MIN values are too high.

Meanwhile we are cross-checking the MIN/MAX values, here is a temporary workarround to allow you to configure with ext-clock at 20 MHz :

open plugin.xml in directory :

C:\SPC5Studio-6.0\eclipse\plugins\com.st.spc5.components.clock.spc574sxx_rla_1.18.0.20221220104643(you could have a different version)

modify min values for:

brief="PLL1-IN clock point."

and

brief="PLL1-VCO clock point."

and save plugin.xml

then restart SPC5Studio in terminal with clean option:

$ ./SPC5Studio.exe -clean

then after code generation, you will have to patch in:

components/spc574sxx_clock_component_rla/lib/include/clock.h

-#define SPC5_PLL1VCO_MIN          600000000U

+#define SPC5_PLL1VCO_MIN          20000000U

Best Regards.

[VP.6]

Thank you very much for your response. I tried the suggestions and was able to generate the code and build it. I am using the PIT Timer application example from SPC5 Studio and Here is the Crystal configuration Settings and Timer settings below.

and

​

PIT Settings

 

 

The Issue I observed is that the Timer 1,2,3 are configured at 250Hz, 500Hz and 1000Hz, but when I flashed in the debugger and observed the Timer 1,2,3 response is 1ms, 500us and 250us correspondingly. Is there any thing need to be modified in Crystal settings? Kindly Suggest

[VP.6]

Also I am seeing this warning in the debugger window UTESTK

This is the Target Interface setting.

 

Kindly suggest if there is any change need to be done in the debugger

[ODOUV.1]

I have no clue on Studio Tool side about your new issues.

In order to maximize your chance to have support, I would suggest you to enter one question for each problems (keeping this one for Studio minimum clock issue).

Best Regards.