mikro c problem with spi data transfer

[forsa]

mikro c problem

hi,
im a student doing a project using mikro c. im new to this software and i learning it by my own. and now hopefully some of u all can enlighten me.

the problem i am facing now is the error of undeclared identifier for MASTER_OSC_DIV16, ATA_SAMPLE_MIDDLE ,CLK_IDLE_LOW, LOW_2_HIGH
when initialize the spi.

"Spi1_Init_Advanced(MASTER_OSC_DIV16,DATA_SAMPLE_MIDDLE,CLK_IDLE_LOW, LOW_2_HIGH);"

i have no idea what happen and i believe it is correct. pls ignore my bad language

 

[forsa]

so anyone can please help me out?

 

[matbob]

Hi forsa,

Can you tell us which microcontroller you used? You need a uC with hardware integrated SPI for using Spi function in the library.

 

[forsa]

its pic 18f452 microcontroller

 

[matbob]

Hi forsa,

I just tried it and found no errors. I believe you are using MikroC. If possible please post the complete code. I compiled the program using function 'Spi_Init...' instead of 'Spi1_Init...'.

 

[forsa]

well, using "spi_init" does not help too..
here are what i have written,

void main()
{
}
char filename[] = "TEMPERTRTXT";
unsigned short character;
unsigned long file_size,i,rec_size;
unsigned char ch1,ch2,flag,ret_status,choice;
unsigned char temperature[10],txt[12];
//
// This function sends carriage-return and line-feed to USART
//
void Newline()
{
Uart1_Write(0x0D); // Send carriage-return
Uart1_Write(0x0A); // Send line-feed
}
//
// This function sends a space character to USART
//
void Space()
{
Uart1_Write(0x20);
}
//
// This function sends a text to serial port
//
void Text_To_Uart1(unsigned char *m)
{
unsigned char i;
i=(0) ;
while(m[i] != 0)
{ // Send TEXT to serial port
Uart1_Write(m[i]);
i++;
}
}
//
// This function reads the temperature from analog input AN0
//
void Get_Temperature()
{
unsigned long Vin, Vdec,Vfrac;
unsigned char op[12];
unsigned char i,j;
Vin = Adc_Read(0); // Read from channel 0 (AN0)
Vin = 488*Vin; // Scale up the result
Vin = Vin /10; // Convert to temperature in C
Vdec = Vin / 100; // Decimal part
Vfrac = Vin % 100; // Fractional part
LongToStr(Vdec,op); // Convert Vdec to string in "op"
//
// Remove leading blanks
//
j=0;
for(i=0;i<=11;i++)
{
if(op[i] != ' ') // If a blank
{
temperature[j]=op[i];
j++;
}
}
temperature[j] = '.'; // Add ¡°.¡±
ch1 = Vfrac / 10; // fractional part
ch2 = Vfrac % 10;
j++;
temperature[j] = 48+ch1; // Add fractional part
j++;
temperature[j] = 48+ch2;
j++;
temperature[j] = 0x0D; // Add carriage-return
j++;
temperature[j] = 0x0A; // Add line-feed
j++;
temperature[j]='\0';
}
//
// Start of MAIN program
//
void main()
{
rec_size = 0;
//
// Configure A/D converter
//
TRISA = 0xFF;
ADCON1 = 0x80; // Use AN0, Vref = +5V
//
// Configure the serial port
//
Uart1_Init(2404);
//
// Initialise the SPI bus
//
Spi_Init_Advanced (MASTER_OSC_DIV16,DATA_SAMPLE_MIDDLE,CLK_IDLE_LOW, LOW_2_HIGH);
//
// Initialise the SD card bus
//
while(Mmc_Init(&PORTC,2));
//
// Initialise the FAT file system
//
while(Mmc_Fat_Init(&PORTC,2));
//
// Display the MENU and get user choice
//
Newline();
Text_To_Uart1("TEMPERATURE DATA LOGGER");
Newline();
Newline();
Text_To_Uart1("1. Send temperature data to the PC");
Newline();
Text_To_Uart1("2. Save temperature data in a new file");
Newline();
Text_To_Uart1("3. Append temperature data to an existing file");
Newline();
Newline();
Text_To_Uart1("Choice ? ");
//
// Read a character from the PC keyboard
//
flag = 0;
do {
if (Uart1_Data_Ready()) // If data received
{
choice = Uart1_Read(); // Read the received data
Uart1_Write(choice); // Echo received data
flag = 1;
}
} while (!flag);
Newline();
Newline();
//
// Now process user choice
//
switch(choice)
{
case '1':
ret_status = Mmc_Fat_Assign(&filename,1);
if(!ret_status)
{
Text_To_Uart1("File does not exist..No saved data...");
Newline();
Text_To_Uart1("Restart the program and save data to the file...");
Newline();
for(;;);
}
else
{
//
// Read the data and send to UART
//
Text_To_Uart1("Sending saved data to the PC...");
Newline();
Mmc_Fat_Reset(&file_size);
for(i=0; i<file_size; i++)
{
Mmc_Fat_Read(&character);
Uart1_Write(character);
}
Newline();
text_To_Uart1("End of data...");
Newline();
for(;;);
}
case '2':
//
// Start the A/D converter, get temperature readings every
// 10 seconds, and then save in a NEW file
//
Text_To_Uart1("Saving data in a NEW file...");
Newline();
Mmc_Fat_Assign(&filename,0x80); // Assign the file
Mmc_Fat_Rewrite(); // Clear
Mmc_Fat_Write("TEMPERATURE DATA - SAVED EVERY 10 SECONDS\r\n",43);
//
// Read the temperature from A/D converter, format and save
//
for(;;)
{
Mmc_Fat_Append();
Get_Temperature();
Mmc_Fat_Write(temperature,9);
rec_size++;
LongToStr(rec_size,txt);
Newline();
Text_To_Uart1("Saving record:");
Text_To_Uart1(txt);
Delay_ms(10000);
}
break;
case '3':
//
// Start the A/D converter, get temperature readings every
// 10 seconds, and then APPEND to the existing file
//
Text_To_Uart1("Appending data to the existing file...");
Newline();
ret_status = Mmc_Fat_Assign(&filename,1); // Assign the file
if(!ret_status)
{
Text_To_Uart1("File does not exist - can not append...");
Newline();
Text_To_Uart1("Restart the program and choose option 2...");
Newline();
for(;;);
}
else
{
//
// Read the temperature from A/D converter, format and save
//
for(;;)
{
Mmc_Fat_Append();
Get_Temperature();
Mmc_Fat_Write(temperature,9);
rec_size++;
LongToStr(rec_size,txt);
Newline();
Text_To_Uart1("Appending new record:");
Text_To_Uart1(txt);
Delay_ms(10000);
}
}
default:
Text_To_Uart1("Wrong choice...Restart the program and try again...");
Newline();
for(;;);
}
}

 

[ansarmytheen]

put the actual error messege ,i think u can solve the problem by using below two codes instead of your codes
Please reinitialize the spi device ,after while ((Mmc_Fat_Init(&PORTC, 2)!=0))
like
Spi_Init_Advanced(MASTER_OSC_DIV4, DATA_SAMPLE_MIDDLE, CLK_IDLE_LOW, LOW_2_HIGH);

 

[matbob]

Hi forsa,

Tell me the version of MikroC you are using. The name of the functions and constants are different in different versions.

 

[ansarmytheen]

I am using mikroc 8.2.0.0
but i think in any version name of the functions and constants are almost same.one think is that new version has new feature.

 

[matbob]

Hi ansarmytheen,

But not in MikroC. In MikroC PRO version, instead of 'MASTER_OSC_DIV16 ' you have '_SPI_MASTER_OSC_DIV16' .... and also instead of SPI1_init in MikroC PRO, you have SPI_Init in MikroC 8.1.''

 

[ansarmytheen]

hai sir,
i know that, but in above program the fellow using spi ini(...................) code.
thanks

 

[forsa]

well, i had solve the problem.. it about the library syntax. i noticed it is different between mikro c and mikro c pro.

however, i had another problem now, which is i could not get any pic18f452 anywhere nearby. any idea which replacement i should use?

 

[ansarmytheen]

hai

I think you can use any 18f series.