MWCT1001A for Auto Wireless Charging

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MWCT1001A for Auto Wireless Charging

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kyleyang
Contributor IV

Hi Experts

 

I am using a MWCT1001A for Auto Wireless Charging application.

Refer to the datasheet, it is possible to choose internal OSC 8MHz for system clock.

But, how to modify the source code to disable external crystal and works well?

Thanks.

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xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi, Kyle,

Of course, the MWCT1001A has internal 8MHz relaxation oscillator, it is the default clock in the source code, after reset, the default 8mhz relaxation oscillator clock is used. If you use internal 8MHz clock, do not use external crystal, you should set CLK_MODE bit as 1(External clock bypass mode) and set the COHL as 1(low power mode to save power) , the two pins GPIOC0/EXTAL, GPIOC1/XTAL can be configured as GPIO pins and external crystal is disabled.

Hope it can help you.

BR

XiangJun Rong

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xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi, Kyle,

Of course, the MWCT1001A has internal 8MHz relaxation oscillator, it is the default clock in the source code, after reset, the default 8mhz relaxation oscillator clock is used. If you use internal 8MHz clock, do not use external crystal, you should set CLK_MODE bit as 1(External clock bypass mode) and set the COHL as 1(low power mode to save power) , the two pins GPIOC0/EXTAL, GPIOC1/XTAL can be configured as GPIO pins and external crystal is disabled.

Hope it can help you.

BR

XiangJun Rong

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kyleyang
Contributor IV

Hi XiangJun Rong

Thanks, fix the issue already.

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