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Line 33... |
//
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//
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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//
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//
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#include "zipcpu.h"
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#include "zipsys.h"
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#include "zipsys.h"
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#include "artyboard.h"
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#include "artyboard.h"
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void entry(void) {
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void main(int argc, char **argv) {
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/*
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/*
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// Method one: direct polling
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// Method one: direct polling
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while(1) {
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while(1) {
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int ch;
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int ch;
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ch = sys->io_gps_rx;
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ch = sys->io_gps_rx;
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if ((ch&-256)==0)
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if ((ch&UART_RX_ERR)==0)
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sys->io_uart_tx = ch;
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sys->io_uart_tx = ch;
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}
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}
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*/
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*/
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// Method two: Waiting on interrupts
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// Method two: Waiting on interrupts
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zip->pic = SYSINT_GPSRX;
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zip->z_pic = SYSINT_GPSRX;
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while(1) {
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while(1) {
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while((zip->pic & SYSINT_GPSRX)==0)
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while((zip->z_pic & SYSINT_GPSRX)==0)
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;
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;
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sys->io_uart_tx = sys->io_gps_rx;
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sys->io_uart_tx = sys->io_gps_rx;
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zip->pic = SYSINT_GPSRX;
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zip->z_pic = SYSINT_GPSRX;
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}
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}
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/*
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/*
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// Method three: Use the DMA
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// Method three: Use the DMA
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zip->dma.ctrl = DMACLEAR;
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zip->z_dma.d_ctrl = DMACLEAR;
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while(1) {
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while(1) {
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zip->dma.rd = &sys->io_gps_rx;
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zip->z_dma.d_rd = (int *)&sys->io_gps_rx;
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zip->dma.wr = &sys->io_uart_tx;
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zip->z_dma.d_wr = (int *)&sys->io_uart_tx;
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zip->dma.len = 0x01000000; // More than we'll ever do ...
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zip->z_dma.d_len = 0x01000000; // More than we'll ever do ...
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zip->dma.ctrl = (DMAONEATATIME|DMA_CONSTDST|DMA_CONSTSRC|DMA_GPSRX);
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zip->z_dma.d_ctrl = (DMAONEATATIME|DMA_CONSTDST|DMA_CONSTSRC|DMA_ONGPSRX);
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// zip->dma.ctrl = (DMAONEATATIME|DMA_CONSTDST|DMA_CONSTSRC);
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while(zip->dma.ctrl & 0x80000000)
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while(zip->z_dma.d_ctrl & DMA_BUSY) {
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if (zip->dma.ctrl & 0x40000000)
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zip_idle();
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zip_halt();;
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if (zip->z_dma.d_ctrl & DMA_ERR)
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zip_halt();
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}
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}
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}
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*/
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*/
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}
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}
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No newline at end of file
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No newline at end of file
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