Nov 11, 2020
02:02 AM
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Nov 11, 2020
02:02 AM
Hello,
how to generate a 16Mhz Clock output signal at a Pin on an XMC4800?
Thanks
Best regards
Florian
how to generate a 16Mhz Clock output signal at a Pin on an XMC4800?
Thanks
Best regards
Florian
5 Replies
Nov 18, 2020
05:50 AM
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Nov 18, 2020
05:50 AM
Has nobody got a hint or an example?
Nov 20, 2020
12:12 AM
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Nov 20, 2020
12:12 AM
Hi Florian,
If you are using Dave Apps,
In CLOCK_XMC4 APP, Clock selection tab has an option to enable clock source.
The clock source and divider can be selected in such a way that you obtain 16MHz.
The output can be driven to P0[8] or P1[15].
You can checkout following APIs too.
/* External output source clock */
XMC_SCU_CLOCK_SetExternalOutputClockSource();
/* External clock divider setting */
XMC_SCU_CLOCK_SetExternalOutputClockDivider();
/* External clock output pin setting */
XMC_GPIO_Init((XMC_GPIO_PORT_t *)PORT1_BASE, 15U, &CLOCK_XMC4_0_extclk_config);
Best Regards,
Vasanth
If you are using Dave Apps,
In CLOCK_XMC4 APP, Clock selection tab has an option to enable clock source.
The clock source and divider can be selected in such a way that you obtain 16MHz.
The output can be driven to P0[8] or P1[15].
You can checkout following APIs too.
/* External output source clock */
XMC_SCU_CLOCK_SetExternalOutputClockSource();
/* External clock divider setting */
XMC_SCU_CLOCK_SetExternalOutputClockDivider();
/* External clock output pin setting */
XMC_GPIO_Init((XMC_GPIO_PORT_t *)PORT1_BASE, 15U, &CLOCK_XMC4_0_extclk_config);
Best Regards,
Vasanth
Nov 20, 2020
12:38 AM
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Nov 20, 2020
12:38 AM
Hi Vasanth,
thank you. If check the box of External Clock (fEXT) I got an error:
What can be the problem ?
thank you. If check the box of External Clock (fEXT) I got an error:
What can be the problem ?
Nov 20, 2020
01:57 AM
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Nov 20, 2020
01:57 AM
Hi,
Could you make sure that both pins P0[8] and P1[15] are not already placed and in your design ?
Best Regards,
Vasanth
Could you make sure that both pins P0[8] and P1[15] are not already placed and in your design ?
Best Regards,
Vasanth
Nov 20, 2020
02:07 AM
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Nov 20, 2020
02:07 AM
Vasanth wrote:
Hi,
Could you make sure that both pins P0[8] and P1[15] are not already placed and in your design ?
Best Regards,
Vasanth
Thank you for that tip !!!! It solved the Problem !!! I put a DIGITAL OUTPUT PIN on 0.8