예제 #1
0
int main(void) {

    // Init PIC24
    InitMain();

    // Init modules
    AudioInInit();
    Uart2Init(UART_BAUD_250000, 0);
    LedsInit();

    // Main loop
    while(1) {
        if(AudioInIsGetReady()) {
            Fixed audioSample = AudioInGet();

            // Update LEDs
            LedsUpdate(audioSample);

            // Print audio sample
            Uart2RxTasks();
            if(Uart2IsPutReady() >= 6) {
                static const char asciiDigits[10] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
                int i = FIXED_TO_INT(audioSample);
                div_t n;
                int print = 0;
                if(i < 0) {
                    Uart2PutChar('-');
                    i = -i;
                }
                if(i >= 10000) {
                    n = div(i, 10000);
                    Uart2PutChar(asciiDigits[n.quot]);
                    i = n.rem;
                    print = 1;
                }
                if(i >= 1000 || print) {
                    n = div(i, 1000);
                    Uart2PutChar(asciiDigits[n.quot]);
                    i = n.rem;
                    print = 1;
                }
                if(i >= 100 || print) {
                    n = div(i, 100);
                    Uart2PutChar(asciiDigits[n.quot]);
                    i = n.rem;
                    print = 1;
                }
                if(i >= 10 || print) {
                    n = div(i, 10);
                    Uart2PutChar(asciiDigits[n.quot]);
                    i = n.rem;
                }
                Uart2PutChar(asciiDigits[i]);
                Uart2PutChar('\r');
            }
        }
    }
}
예제 #2
0
파일: Uart2.c 프로젝트: Ethan--Xu/GPSINS
/**
 * @brief Loads byte array into software transmit buffer starts interrupt-driven
 * transmission.
 *
 * This function should only be called if space is available.  Call
 * Uart1IsPutReady to determine the number of bytes that may be loaded into the
 * software transmit buffer.
 *
 * Example use:
 * @code
 * char array[] = { 1, 2, 3 };
 * if(Uart1IsPutReady() > sizeof(array)) {
 *     Uart1PutCharArray(array, sizeof(array));
 * }
 * @endcode
 *
 * @param source Address of byte array.
 * @param numberOfBytes Number of bytes in byte array.
 * @return 0 if successful.
 */
int Uart2PutCharArray(const char* const source, const size_t numberOfBytes) {
    if (numberOfBytes > Uart2IsPutReady()) {
        return 1; // error: not enough space in buffer
    }
    int i;
    for (i = 0; i < numberOfBytes; i++) {
        Uart2PutChar(source[i]);
    }
    return 0;
}