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machine: improve UARTParity slightly

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There are only 3 possible values, so a uint8 seems more appropriate.
Also, there is no reason to use specific numbers over a simple
enumeration.
This commit is contained in:
Ayke van Laethem
2022-09-18 15:36:58 +02:00
committed by Ron Evans
parent a5aa777c7b
commit 9720ccacbb
1 changed files with 4 additions and 4 deletions
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src/machine/uart.go
+4 -4
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@@ -8,20 +8,20 @@ import "errors"
var errUARTBufferEmpty = errors.New("UART buffer empty") var errUARTBufferEmpty = errors.New("UART buffer empty")
// UARTParity is the parity setting to be used for UART communication. // UARTParity is the parity setting to be used for UART communication.
type UARTParity int type UARTParity uint8
const ( const (
// ParityNone means to not use any parity checking. This is // ParityNone means to not use any parity checking. This is
// the most common setting. // the most common setting.
ParityNone UARTParity = 0 ParityNone UARTParity = iota
// ParityEven means to expect that the total number of 1 bits sent // ParityEven means to expect that the total number of 1 bits sent
// should be an even number. // should be an even number.
ParityEven UARTParity = 1 ParityEven
// ParityOdd means to expect that the total number of 1 bits sent // ParityOdd means to expect that the total number of 1 bits sent
// should be an odd number. // should be an odd number.
ParityOdd UARTParity = 2 ParityOdd
) )
// To implement the UART interface for a board, you must declare a concrete type as follows: // To implement the UART interface for a board, you must declare a concrete type as follows: