Created
February 21, 2013 19:48
-
-
Save raivisr/5007565 to your computer and use it in GitHub Desktop.
stdio over UART1 example for xc32
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // set heap size in project properties under xc32-ld to something like 256 | |
| // or it will not link | |
| #include <xc.h> | |
| #include <plib.h> | |
| #include <stdio.h> | |
| #pragma config FNOSC = PRIPLL, FPLLIDIV = DIV_2, FPLLMUL = MUL_20, FPLLODIV = DIV_1 | |
| #pragma config POSCMOD = XT, FWDTEN = OFF, FPBDIV = DIV_1, FSRSSEL = PRIORITY_3 | |
| #define GetSystemClock() (80000000ul) | |
| #define GetPeripheralClock() (GetSystemClock()/(1 << OSCCONbits.PBDIV)) | |
| #define GetInstructionClock() (GetSystemClock()) | |
| #define BAUD 19200 | |
| void main() | |
| { | |
| SYSTEMConfig(GetSystemClock(), SYS_CFG_WAIT_STATES | SYS_CFG_PCACHE); | |
| setbuf(stdin,NULL); | |
| setbuf(stdout,NULL); | |
| UARTConfigure(UART1, UART_ENABLE_HIGH_SPEED | UART_ENABLE_PINS_TX_RX_ONLY); | |
| UARTSetFifoMode(UART1, UART_INTERRUPT_ON_RX_NOT_EMPTY | UART_INTERRUPT_ON_TX_NOT_FULL); | |
| UARTSetLineControl(UART1, UART_DATA_SIZE_8_BITS | UART_PARITY_NONE | UART_STOP_BITS_1); | |
| UARTSetDataRate(UART1, GetPeripheralClock(), BAUD); | |
| UARTEnable(UART1, UART_ENABLE_FLAGS(UART_PERIPHERAL | UART_RX | UART_TX)); | |
| printf("stdio over UART example\n"); | |
| while(1) | |
| { | |
| if (UARTReceivedDataIsAvailable(UART1)) | |
| { | |
| char chr = getchar(); | |
| if (chr > 0) | |
| printf("%c\n",chr); | |
| } | |
| } | |
| } | |
| void _mon_putc(char c) | |
| { | |
| while (!UARTTransmitterIsReady(UART1)); | |
| UARTSendDataByte(UART1, c); | |
| } | |
| int _mon_getc(int canblock) | |
| { | |
| if (canblock == 0) | |
| if (UARTReceivedDataIsAvailable(UART1)) | |
| return (int)UARTGetDataByte(UART1); | |
| else | |
| return -1; | |
| else | |
| { | |
| while(!UARTReceivedDataIsAvailable(UART1)); | |
| return (int)UARTGetDataByte(UART1); | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment