Posted on February 21, 2012 at 12:13
Here's what I've done...
These are parts of my code.....
#define add_0 0x00000002
// RS of ILI9320 is connected to A[0] of FSMC //
// In case of a 16-bit external memory width(like ILI9320), the FSMC will
// internally use HADDR[25:1] to generate the
// address for external memory A[24:0].
// Therefore HADDR[1] is used as RS
CYG_ADDRESS LCD_base=0x6C000000;
CYG_ADDRESS FSMC_base=0xA0000000;
void
lcd_write(unsigned
char
offset,unsigned
short
data)
{
HAL_WRITE_UINT16(LCD_base,offset);
HAL_WRITE_UINT16(LCD_base|add_0,data);
//0x6C000000|0x00000002
}
short
lcd_read_status(
void
)
{
short
data;
HAL_READ_UINT16(LCD_base,data);
return
data;
}
short
lcd_read_code(
void
)
{
short
data;
HAL_WRITE_UINT16(LCD_base,0x00);
HAL_READ_UINT16(LCD_base|add_0,data);
return
data;
}
void
fsmc_config(
short
offset,
int
data)
{
HAL_WRITE_UINT16(FSMC_base+offset,data);
}
int
main(
void
){
int
fsmc_c1,fsmc_c2,fsmc_c3; //FSMC configuration values
fsmc_c1=0x000050D1; //FSMC_BCR4
fsmc_c2=0x00000D0B; //FSMC_BTR4
fsmc_c3=0x00000B0B; //FSMC_BWTR4
fsmc_config(0x18,fsmc_c1);
//0xA000 0000 + 8(4-1) //bank 1 region 4
fsmc_config(0x1C,fsmc_c2);
//0xA000 0000 + 0x04 + 8(4-1)
fsmc_config(0x104,fsmc_c3);
//0xA000 0000 + 0x104 + 8(4-1) **EXTMOD = ENABLE**
lcd_init();
// this works fine
printf(
''status: %d \t code: %d
''
,lcd_read_status(),lcd_read_code());
// I've got -27872(9320 in decimal) for both
return
0;
}
from the equations for FSMC timing I've got
ADDSET=10(decimal)
DATASET=10(decimal)
maybe i am missing something....
any ideas?
thanks,
Filip.
