35 lines
1.3 KiB
Plaintext
35 lines
1.3 KiB
Plaintext
## StdIO.jack
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A library of functions for textual input and output over UART.
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### function void printString(String s)
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Print the String s to UART_TX and disposes the String s.
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### function void printInt(int i)
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Prints the decimal representation of i to UART_TX
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### function void println()
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Prints the new line character to UART_TX
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### function int readInt(String message)
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Displays the message on the screen, disposes the message, reads from UART_RX the entered text until a newline character is detected, echoes the text to UART_TX, and returns its integer value (until the first non-digit character in the entered text is detected). Also handles user backspaces.
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### function String readLine(String message)
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Sends the message to UART_TX, reads from UART_RX the entered text until a newline character is detected, echoes the text to the UART_TX, and returns its value. Also handles user backspaces.
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***
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## Project
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* Implement `StdIO.jack`.
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* Run String_Test in real hardware on iCE40HX1K-EVB using a terminal program connected to UART.
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* Compare your terminal output with:
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```
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StdIO test:
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Please press the number '3':
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ok
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readLine test:
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(Verify echo and usage of 'backspace')
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Please type 'JACK' and press enter: JACK
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ok
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readInt test:
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(Verify echo and usage of 'backspace')
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Please type '-32123' and press enter: -32123
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ok
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Test completed successfully
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``` |