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comment out ready-checking - it eats up 116.31KB/Sec reading speed

This commit is contained in:
Oliver Lehmann 2012-06-07 18:38:08 +00:00
parent 4e85b88109
commit 30dbd18ad6
2 changed files with 9 additions and 8 deletions
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4
P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_drv_mmc.c
View File

@ -26,7 +26,7 @@
*/
/*
* $Id: wdc_drv_mmc.c,v 1.10 2012/06/07 18:01:02 olivleh1 Exp $
* $Id: wdc_drv_mmc.c,v 1.11 2012/06/07 18:38:08 olivleh1 Exp $
*/
#include <avr/io.h>
@ -345,7 +345,7 @@ uint8_t mmc_read_block ( uint8_t *cmd, uint8_t *buffer, uint16_t bytes )
#endif
MMC_Enable();
wait_till_card_ready();
// wait_till_card_ready();
/* send command */
if ( mmc_cmd ( cmd ) != 0 ) {

13
P8000_WDC_Emulator/P8000_WDC_Emulator/wdc_main.c
View File

@ -29,7 +29,7 @@
/*
* P8000 WDC Emulator
*
* $Id: wdc_main.c,v 1.18 2012/06/07 18:01:02 olivleh1 Exp $
* $Id: wdc_main.c,v 1.19 2012/06/07 18:38:08 olivleh1 Exp $
*
* TODO: - Different Errorcodes in the MMC layer (use defines)
* - errorchecking in several places
@ -57,6 +57,7 @@
#define DEBUG 1
#undef MEASURE_SDCARD_TIME
#define MEASURE_SDCARD_TIME 1
/* switched from local to global for keeping an eye on memory usage */
uint8_t data_buffer[4096];
@ -374,7 +375,7 @@ void measure_performance()
{
uint32_t starttime;
uint32_t blockno = 0;
uint8_t numblocks = 4;
// uint8_t numblocks = 4;
uint8_t i8, errorcode;
uint8_t nr_of_tests = 5;
@ -388,7 +389,7 @@ void measure_performance()
uart_putc ( '\n' );
uart_puts_p ( PSTR ( "Timer is initialized with a Prescaler 8" ) );
uart_putc ( '\n' );
#ifdef FOO
uart_puts_p ( PSTR ( "Test Read 5000 WDC_BLOCKLENB-Blocks with Multiblock-Read (4KB Blocksize):" ) );
uart_putc ( '\n' );
@ -422,7 +423,7 @@ void measure_performance()
uart_putdw_dec ( overflow - starttime );
uart_putc ( '\n' );
}
#endif
uart_puts_p ( PSTR ( "Test Read 5000 WDC_BLOCKLENB-Blocks with Singleblock-Read (WDC_BLOCKLENB Blocksize):" ) );
uart_putc ( '\n' );
@ -439,7 +440,7 @@ void measure_performance()
uart_putdw_dec ( overflow - starttime );
uart_putc ( '\n' );
}
#ifdef FOO
uart_puts_p ( PSTR ( "Test Write 5000 WDC_BLOCKLENB-Blocks with Singleblock-Write (WDC_BLOCKLENB Blocksize):" ) );
uart_putc ( '\n' );
memset ( &data_buffer[0], 0xCC, WDC_BLOCKLEN * numblocks );
@ -456,7 +457,7 @@ void measure_performance()
uart_putdw_dec ( overflow - starttime );
uart_putc ( '\n' );
}
#endif
while ( 1 );
}
#endif