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Set full PINCFG register on pinMode(pin, OUTPUT)
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cores/arduino/wiring_digital.c

+2-5
Original file line numberDiff line numberDiff line change
@@ -58,11 +58,8 @@ void pinMode( uint32_t ulPin, uint32_t ulMode )
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break ;
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case OUTPUT:
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// enable input, to support reading back values
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PORT->Group[g_APinDescription[ulPin].ulPort].PINCFG[g_APinDescription[ulPin].ulPin].bit.INEN = 1 ;
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// disable pullups
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PORT->Group[g_APinDescription[ulPin].ulPort].PINCFG[g_APinDescription[ulPin].ulPin].bit.PULLEN = 0 ;
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// enable input, to support reading back values, with pullups disabled
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PORT->Group[g_APinDescription[ulPin].ulPort].PINCFG[g_APinDescription[ulPin].ulPin].reg=(uint8_t)(PORT_PINCFG_INEN) ;
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// Set pin to output mode
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PORT->Group[g_APinDescription[ulPin].ulPort].DIRSET.reg = (uint32_t)(1<<g_APinDescription[ulPin].ulPin) ;

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