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fix: incorrect not operator #1045

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fix: incorrect not operator #1045

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4 changes: 2 additions & 2 deletions source/board/nrf5x_dk_ext.c
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Original file line number Diff line number Diff line change
Expand Up @@ -155,12 +155,12 @@ static void nrf_prerun_board_config(void)
// nonzero if external target is detected
bit1 = (PIOB->PIO_PDSR >> 6) & 1; // Read PB6
bit2 = (PIOB->PIO_PDSR >> 18) & 1; // Read PB18
target_ext = bit1 | !bit2;
target_ext = bit1 | ~bit2;

// nonzero if shield-mounted target is detected
bit1 = (PIOB->PIO_PDSR >> 5) & 1; // Read PB5
bit2 = (PIOB->PIO_PDSR >> 23) & 1; // Read PB23
target_shield = bit1 | !bit2;
target_shield = bit1 | ~bit2;

// Disable pull-ups for detection
PIOB->PIO_PUDR = (1 << 18); // pull-up disable
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