URL https://opencores.org/ocsvn/openarty/openarty/trunk

Subversion Repositories openarty

[/] [openarty/] [trunk/] [sw/] [board/] [gpsdump.c] - Diff between revs 34 and 36

Rev 34	Rev 36
Line 33...	Line 33...
`//`	`//`
`//`	`//`
`////////////////////////////////////////////////////////////////////////////////`	`////////////////////////////////////////////////////////////////////////////////`
`//`	`//`
`//`	`//`
	`#include "zipsys.h"`
`#include "artyboard.h"`	`#include "artyboard.h"`

`void entry(void) {`	`void entry(void) {`
	`/*`
	`// Method one: direct polling`
	`while(1) {`
	`int ch;`
	`ch = sys->io_gps_rx;`
	`if ((ch&-256)==0)`
	`sys->io_uart_tx = ch;`
	`}`
	`*/`
	`// Method two: Waiting on interrupts`
	`zip->pic = SYSINT_GPSRX;`
`while(1) {`	`while(1) {`
`int ch;`	`while((zip->pic & SYSINT_GPSRX)==0)`
`ch = sys->io_gps_rx;`	`;`
`if ((ch&-256)==0)`	`sys->io_uart_tx = sys->io_gps_rx;`
`sys->io_uart_tx = ch;`	`zip->pic = SYSINT_GPSRX;`
`}`	`}`

	`/*`
	`// Method three: Use the DMA`
	`zip->dma.ctrl = DMACLEAR;`
	`while(1) {`
	`zip->dma.rd = &sys->io_gps_rx;`
	`zip->dma.wr = &sys->io_uart_tx;`
	`zip->dma.len = 0x01000000; // More than we'll ever do ...`
	`zip->dma.ctrl = (DMAONEATATIME\|DMA_CONSTDST\|DMA_CONSTSRC\|DMA_GPSRX);`
	`// zip->dma.ctrl = (DMAONEATATIME\|DMA_CONSTDST\|DMA_CONSTSRC);`

	`while(zip->dma.ctrl & 0x80000000)`
	`if (zip->dma.ctrl & 0x40000000)`
	`zip_halt();;`
	`}`
	`*/`
`}`	`}`

`No newline at end of file`	`No newline at end of file`