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nerdralph · nerdralph · commit 121a75e643da · 2021-03-30T18:34:49.000-03:00
diff --git a/src/wiring_digital.c b/src/wiring_digital.c
@@ -15,18 +15,19 @@ inline ioreg_p pin_to_port(uint8_t pin)
 
 inline ioreg_p pin_to_ddr(uint8_t pin)
 {
+    // DDR address is 1 less than PORT address
     return pin_to_port(pin) - 1;
 }
 
 inline ioreg_p pin_to_pinreg(uint8_t pin)
 {
+    // PIN address is 2 less than PORT address
     return pin_to_port(pin) - 2;
 }
 
 inline uint8_t pin_to_bit(uint8_t pin)
 {
     return digital_pin_to_bit_mask_PGM[pin];
-    //return ((const __flash uint8_t*) digital_pin_to_bit_mask_PGM)[pin];
 }
 
 void pinMode(uint8_t pin, uint8_t mode)

Original file line number	Diff line number	Diff line change
`@@ -15,18 +15,19 @@ inline ioreg_p pin_to_port(uint8_t pin)`
`15`	`15`
`16`	`16`	`inline ioreg_p pin_to_ddr(uint8_t pin)`
`17`	`17`	`{`
	`18`	`+ // DDR address is 1 less than PORT address`
`18`	`19`	`return pin_to_port(pin) - 1;`
`19`	`20`	`}`
`20`	`21`
`21`	`22`	`inline ioreg_p pin_to_pinreg(uint8_t pin)`
`22`	`23`	`{`
	`24`	`+ // PIN address is 2 less than PORT address`
`23`	`25`	`return pin_to_port(pin) - 2;`
`24`	`26`	`}`
`25`	`27`
`26`	`28`	`inline uint8_t pin_to_bit(uint8_t pin)`
`27`	`29`	`{`
`28`	`30`	`return digital_pin_to_bit_mask_PGM[pin];`
`29`		`- //return ((const __flash uint8_t*) digital_pin_to_bit_mask_PGM)[pin];`
`30`	`31`	`}`
`31`	`32`
`32`	`33`	`void pinMode(uint8_t pin, uint8_t mode)`