MC13224 serial bootloader

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MC13224 serial bootloader

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estratos
Contributor I

Is there any way to enable the serial bootloader on the MC13224 via software without having to set ADC2_VREFH pin to low and ADC2_VREFL pin to high?

 

Thanks,

 

Daniel.

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redbee
Contributor III

 


estratos wrote:

Is there any way to enable the serial bootloader on the MC13224 via software without having to set ADC2_VREFH pin to low and ADC2_VREFL pin to high?

 

Thanks,

 

Daniel.


 

Setting ADC2_VREFH low and ADC2_VREFL high on reset triggers a flash erase.

 

Setting UART1_RTS low on reset will cause the bootloader to watch UART1 if there isn't a valid image in flash, SPI, or I2C.

 

I suppose it wouldn't be too hard to find the ROM address for the UART1 bootloader and jump to there...

 

 

-Mar.

 

 

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redbee
Contributor III

 


estratos wrote:

Is there any way to enable the serial bootloader on the MC13224 via software without having to set ADC2_VREFH pin to low and ADC2_VREFL pin to high?

 

Thanks,

 

Daniel.


 

Setting ADC2_VREFH low and ADC2_VREFL high on reset triggers a flash erase.

 

Setting UART1_RTS low on reset will cause the bootloader to watch UART1 if there isn't a valid image in flash, SPI, or I2C.

 

I suppose it wouldn't be too hard to find the ROM address for the UART1 bootloader and jump to there...

 

 

-Mar.

 

 

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estratos
Contributor I

Thanks Mar :smileywink:

 

Daniel.

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