65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
#include "SunseekerTelemetry2021.h"
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#include "clock_init.h"
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#include "interrupts.h"
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#include "io_init.h"
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#include "timers.h"
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#include "usci.h"
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long delayCounter = 0;
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volatile unsigned char status_flag = FALSE;
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char USBTransmitString[256];
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char RS232TransmitString[] = "[DEBUG] Test Transmission String";
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char RS232RelayString[256];
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char* pUSBReceiveString;
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char* pRS232ReceiveString;
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int main(void) {
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WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer; `WDTPW` is the "WatchDog Timer PassWord", required for all `WDTCTL` operations
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_DINT(); // Disable interrupts
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clock_init(); // Configure HF and LF clocks
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delay();
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timerB_init(); // Initialize timer B
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delay();
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io_init(); // Initialize all input/output pins
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delay();
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usci_init(); // Initialize USCI modules
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delay();
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_EINT(); // Enable global interrupts
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P8OUT |= LEDY0; // Initially set LEDY0 to High
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sprintf(USBTransmitString, "Transmitted over RS-232: \"%s\"", RS232TransmitString);
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pUSBReceiveString = calloc(1, 256 * sizeof(*pUSBReceiveString) + 1);
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pRS232ReceiveString = calloc(1, 256 * sizeof(*pUSBReceiveString) + 1);
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usci_A2_enable(); // Enable the USB interface
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usci_A2_enableInterrupt(); // Enable interrupts for the USB interface
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usci_A3_enable(); // Enable the RS-232 interface
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usci_A3_enableInterrupt(); // Enable interrupts for the RS-232 interface
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while(1)
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{
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// Repeating debug transmission string
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if(delayCounter == 0){
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usci_A3_transmitString(&RS232TransmitString[0]);
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usci_A2_transmitString(&USBTransmitString[0]);
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}else{
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++delayCounter;
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delayCounter %= 10000;
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}
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// String received, to be transmitted back
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if(pRS232ReceiveString[0] != '\0'){
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sprintf(RS232RelayString, "Received and Re-Transmitted over RS-232: \"%s\"", pRS232ReceiveString);
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usci_A2_transmitString(&RS232RelayString[0]);
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usci_A3_transmitString(pRS232ReceiveString);
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pRS232ReceiveString[0] = '\0';
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}
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}
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}
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