Renesas RSSK, Руководство пользователя

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Renesas Solution Starter Kit for RX23W 5. User Code Integration
R20UT4449EG0100 Rev. 1.00 Page 56 of 64
Aug.30.19
/* Reset the flag */
g_adc_trigger = FALSE;
}
else
{
/* do nothing */
}
}
}
Then, add the following function definition in the end of the file:
/******************************************************************************
* Function Name : uart_display_adc
* Description : Converts adc result to a string and sends it to the UART.
* Argument : uint8_t : gs_adc_count
* uint16_t: adc result
* Return value : none
******************************************************************************/
static void uart_display_adc ( const uint8_t gs_adc_count, const uint16_t adc_result)
{
/* Declare a temporary variable */
char a;
/* Declare temporary character string */
static char uart_buffer[] = "ADC xH Value: xxxH\r\n" ;
/* Convert ADC result into a character string, and store in the local.
Casting to ensure use of correct data type. */
a = ( char )(gs_adc_count & 0x000F);
uart_buffer[4] = ( char )((a < 0x0A) ? (a + 0x30) : (a + 0x37));
a = ( char )((adc_result & 0x0F00) >> 8);
uart_buffer[14] = ( char )((a < 0x0A) ? (a + 0x30) : (a + 0x37));
a = ( char )((adc_result & 0x00F0) >> 4);
uart_buffer[15] = ( char )((a < 0x0A) ? (a + 0x30) : (a + 0x37));
a = ( char )(adc_result & 0x000F);
uart_buffer[16] = ( char )((a < 0x0A) ? (a + 0x30) : (a + 0x37));
/* Send the string to the UART */
R_DEBUG_Print(uart_buffer);
}
/******************************************************************************
* End of function uart_display_adc
******************************************************************************/
Select ‘Build Project’ from the ‘Project’ menu. e
2
studio will build the project with no errors.
The project may now be run using the debugger as described in §6. Connect the RSSK
USBCN0
port to a
USB port on a PC. If this is the first time the RSSK has been connected to the PC then a device driver will be
installed automatically. Open Device Manager, the virtual COM port will be appeared under 'Port (COM &
LPT)' as 'RSSK USB Serial Port (COMx)', where x is a number.
Open a terminal program, such as HyperTerminal, on the PC with the same settings as for SCI8 (Baudrate:
19200, Data Length: 8, Parity Bit: None, Stop Bit: 1, Flow Control: None).
When any switch is pressed, or when ‘c’ is sent via the COM port, the program will perform an A/D conversion
of the voltage level on the ADPOT line and display the result on the LCD panel and send the result to the PC
terminal program via the SCI8.