81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
//
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// Telemetry MODEM Code
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//
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#include "Sunseeker2021.h"
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int synccount = 0;
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//Initialize the MODEM (RS1) Interface
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//
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//
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void MODEM_init()
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{
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UART3CTL1 |= UCSWRST | UCSSEL_2; //put state machine in reset & SMCLK
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UART3CTL0 |= UCMODE_0;
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UART3BRW = (int)(SMCLK_RATE/MODEM_BR1); //10MHZ/115200
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UART3MCTL |= UCBRF_0 + (char)MODEM_UCBRS1; //modulation UCBRSx=computed from baud rate UCBRFx=0
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UART3IFG &= ~UCTXIFG; //Clear Xmit and Rec interrupt flags
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UART3IFG &= ~UCRXIFG;
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UART3CTL1 &= ~UCSWRST; //initalize state machine
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UART3ABCTL |= UCABDEN;
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//UART3IE |= UCRXIE|UCTXIE; //enable TX & RX interrupt
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}
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// The Initialization/Synchronization sequence for the modem
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//
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void MODEM_command(char data[])
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{
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char respRX[4];
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int ii;
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UART1_TXN(RFCommand,3);
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// UART1_RXN(respRX,3); // Hangs if no powered MODEM present
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for (ii=0;ii<0x100;ii++) delay();
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//for(int i = 0;i<0xffff;i++);
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synccount++;
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UART1_TX(data);
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// Note: after the completion of the data send
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// an "OK" is sent of the command is executed
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// an "ERROR" is sent of there is an error
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}
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// The MODEM transmission with sync
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//
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int MODEM_TX(char data[], int size)
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{
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MODEM_command(RFModemS);
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UART1_TXN(data,size);
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return 1;
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}
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int MODEM_TX_PCK(char data[])
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{
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UART1_TX(data);
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return 1;
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}
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//
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//#pragma vector=USCI_A1_VECTOR
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//__interrupt void USCI_A1_ISR(void)
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//{
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// switch(__even_in_range(UCA1IV,4))
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// {
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// case 0:break; // Vector 0 - no interrupt
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// case 2: // Vector 2 - RXIFG
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// UCA1IFG &= ~(UCRXIFG);
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// break;
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// case 4: // Vector 4 - TXIFG
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//
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// // UCA1TXBUF = send[txcount++]; //send char and inc txcount
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// UCA1IFG &= UCTXIFG; //reset TX flag
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// // if(txcount > 16)
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// {
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//// txcount = 0; ///reset txcount
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// }
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//
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// break;
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// default: break;
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// }
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//}
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