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gukevin1984
Joined: 20 May 2011 Posts: 1
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is that the source problem? |
Posted: Fri May 20, 2011 11:24 pm |
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i am going to use this code for sensor data transfer to SD card by SPI mode
but when i built it, there is some problem, failed~~~
help~~~~~~pls, im a new guy
#include <htc.h>
#define SPI_OUT RC5_bit /* define SPI SDO signal to be PIC port RC5 */
#define SPI_IN RC4_bit /* Define SPI SDI signal to be PIC port RC4 */
#define SPI_CLK RC3_bit /* Define SPI CLK/SCK signal to be PIC port RC3 */
#define SPI_CS RC2_bit /* Define SPI CS/SS signal to be PIC port RC2 */
int mmc_init();
int mmc_response(unsigned char response);
int mmc_read_block(unsigned long block_number);
int mmc_write_block(unsigned long block_number);
int mmc_get_status();
/************************** MMC Init **************************************/
/* Initialises the MMC into SPI mode and sets block size, returns 0 on success */
int mmc_init()
{
int i;
SETUP_SPI(SPI_MASTER | SPI_H_TO_L | SPI_CLK_DIV_4 | SPI_SS_DISABLED);
*0x94 |= 0x00; // set CKE = 0 - from idle to active clock state
*0x14 &= 0xEF; // set CKP = 0 - Idle state for clock is a low level
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
for(i=0;i<10;i++) // initialise the MMC card into SPI mode by sending clks on (11)
{
SPI_WRITE(0x0B);
}
OUTPUT_LOW(PIN_C2); // set SS = 0 (on) tells card to go to spi mode when it receives reset
SPI_WRITE(0x40); // send reset command
SPI_WRITE(0x00); // all the arguments are 0x00 for the reset command
SPI_WRITE(0x00);
SPI_WRITE(0x00);
SPI_WRITE(0x00);
SPI_WRITE(0x95); // precalculated checksum as we are still in MMC mode
puts("Sent go to SPI\n\r");
if(mmc_response(0x01) == 1) return 1; // if = 1 then there was a timeout waiting for 0x01 from the mmc
puts("Got response from MMC\n\r");
i = 0;
while((i < 255) && (mmc_response(0x00) == 1)) // must keep sending command if response
{
SPI_WRITE(0x41); // send mmc command one to bring out of idle state
SPI_WRITE(0x00); // all the arguments are 0x00 for command one
SPI_WRITE(0x00);
SPI_WRITE(0x00);
SPI_WRITE(0x00);
SPI_WRITE(0xFF); // checksum is no longer required but we always send 0xFF
i++;
}
if(i >= 254) return 1; // if >= 254 then there was a timeout waiting for 0x00 from the mmc
puts("Got out of idle response from MMC\n\r");
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
SPI_WRITE(0xFF); // extra clocks to allow mmc to finish off what it is doing
OUTPUT_LOW(PIN_C2); // set SS = 0 (on)
SPI_WRITE(0x50); // send mmc command one to bring out of idle state
SPI_WRITE(0x00);
SPI_WRITE(0x00);
SPI_WRITE(0x02); // high block length bits - 512 bytes
SPI_WRITE(0x00); // low block length bits
SPI_WRITE(0xFF); // checksum is no longer required but we always send 0xFF
if((mmc_response(0x00)) == 1) return 1;
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
puts("Got set block length response from MMC\n\r");
return 0;
}
/************************** MMC Get Status **************************************/
/* Get the status register of the MMC, for debugging purposes */
int mmc_get_status()
{
OUTPUT_LOW(PIN_C2); // set SS = 0 (on)
SPI_WRITE(0x58); // send mmc command one to bring out of idle state
SPI_WRITE(0x00);
SPI_WRITE(0x00);
SPI_WRITE(0x00); //
SPI_WRITE(0x00); // always zero as mulitples of 512
SPI_WRITE(0xFF); // checksum is no longer required but we always send 0xFF
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
return 0;
}
/************************** MMC Write Block **************************************/
int mmc_write_block(unsigned long block_number)
{
unsigned long i;
unsigned long varh,varl;
varl=((block_number&0x003F)<<9);
varh=((block_number&0xFFC0)>>7);
puts("Write block\n\r"); // block size has been set in mmc_init()
OUTPUT_LOW(PIN_C2); // set SS = 0 (on)
SPI_WRITE(0x58); // send mmc write block
SPI_WRITE(HIGH(varh));
SPI_WRITE(LOW(varh));
SPI_WRITE(HIGH(varl));
SPI_WRITE(0x00); // always zero as mulitples of 512
SPI_WRITE(0xFF); // checksum is no longer required but we always send 0xFF
if((mmc_response(0x00))==1) return 1;
puts("Got response to write block\n\r");
SPI_WRITE(0xFE); // send data token
for(i=0;i<512;i++)
{
SPI_WRITE(i2c_eeprom_read(HIGH(i),LOW(i))); // send data
}
SPI_WRITE(0xFF); // dummy CRC
SPI_WRITE(0xFF);
if((SPI_READ(0xFF)&0x0F)!=0x05) return 1;
puts("Got data response to write block\n\r");
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
return 0;
}
/************************** MMC Read Block **************************************/
/**** Reads a 512 Byte block from the MMC and outputs each byte to RS232 ****/
int mmc_read_block(unsigned long block_number)
{
unsigned long i;
unsigned long varh,varl;
varl=((block_number&0x003F)<<9);
varh=((block_number&0xFFC0)>>7);
OUTPUT_LOW(PIN_C2); // set SS = 0 (on)
SPI_WRITE(0x51); // send mmc read single block command
SPI_WRITE(HIGH(varh)); // arguments are address
SPI_WRITE(LOW(varh));
SPI_WRITE(HIGH(varl));
SPI_WRITE(0x00);
SPI_WRITE(0xFF); // checksum is no longer required but we always send 0xFF
if((mmc_response(0x00))==1) return 1; // if mmc_response returns 1 then we failed to get a 0x00 response (affirmative)
puts("Got response to read block command\n\r");
if((mmc_response(0xFE))==1) return 1; // wait for data token
puts("Got data token\n\r");
for(i=0;i<512;i++)
{
putc(SPI_READ(0xFF)); // we should now receive 512 bytes
}
SPI_READ(0xFF); // CRC bytes that are not needed
SPI_READ(0xFF);
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
SPI_WRITE(0xFF); // give mmc the clocks it needs to finish off
puts("\n\rEnd of read block\n\r");
return 0;
}
/************************** MMC get response **************************************/
/**** Repeatedly reads the MMC until we get the response we want or timeout ****/
int mmc_response(unsigned char response)
{
unsigned long count = 0xFFFF; // 16bit repeat, it may be possible to shrink this to 8 bit but there is not much point
while(SPI_READ(0xFF) != response && --count > 0);
if(count==0) return 1; // loop was exited due to timeout
else return 0; // loop was exited before timeout
}
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 25.1 function declared implicit int
Error [192] C:\Users\kevin\Desktop\Untitled.c; 25.11 undefined identifier "SPI_MASTER"
Error [192] C:\Users\kevin\Desktop\Untitled.c; 25.24 undefined identifier "SPI_H_TO_L"
Error [192] C:\Users\kevin\Desktop\Untitled.c; 25.37 undefined identifier "SPI_CLK_DIV_4"
Error [192] C:\Users\kevin\Desktop\Untitled.c; 25.53 undefined identifier "SPI_SS_DISABLED"
Error [981] C:\Users\kevin\Desktop\Untitled.c; 27.7 pointer required
Error [981] C:\Users\kevin\Desktop\Untitled.c; 27.7 pointer required
Error [981] C:\Users\kevin\Desktop\Untitled.c; 28.7 pointer required
Error [981] C:\Users\kevin\Desktop\Untitled.c; 28.7 pointer required
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 30.1 function declared implicit int
Error [192] C:\Users\kevin\Desktop\Untitled.c; 30.13 undefined identifier "PIN_C2"
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 34.1 function declared implicit int
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 37.1 function declared implicit int
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 46.1 function declared implicit int
Error [192] C:\Users\kevin\Desktop\Untitled.c; 93.12 undefined identifier "PIN_C2"
Error [192] C:\Users\kevin\Desktop\Untitled.c; 118.12 undefined identifier "PIN_C2"
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 121.11 function declared implicit int
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 122.11 function declared implicit int
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 135.11 function declared implicit int
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 142.5 function declared implicit int
Error [192] C:\Users\kevin\Desktop\Untitled.c; 163.12 undefined identifier "PIN_C2"
Warning [361] C:\Users\kevin\Desktop\Untitled.c; 182.1 function declared implicit int
********** Build failed! ********** |
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PCM programmer
Joined: 06 Sep 2003 Posts: 21708
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Posted: Sat May 21, 2011 12:16 am |
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Quote: |
#include <htc.h>
SETUP_SPI(SPI_MASTER | SPI_H_TO_L | SPI_CLK_DIV_4 | SPI_SS_DISABLED);
*0x94 |= 0x00; // set CKE = 0 - from idle to active clock state
*0x14 &= 0xEF; // set CKP = 0 - Idle state for clock is a low level
OUTPUT_HIGH(PIN_C2); // set SS = 1 (off)
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You're using the Hi-Tech C compiler to compile CCS C source code.
That's not going to work. They are not compatible.
Decide which compiler you want to use, Hi-Tech or CCS.
Then find source code which is written for the compiler you choose.
If you choose Hi-Tech, here are the forums for that compiler:
http://forum.htsoft.com/all/categories.php
http://www.microchip.com/forums/f231.aspx |
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