Hello, could any one show example how to test my setup ?
( i made flash programmer, and development board,25MHz CLK, Boot config SPI_MASTER (01), and CLK konfig is 00)
In loader setup, should i sue SPI_FLASH, or SPI_MASTER ?
my program looks like this:
#include <def21488.h>
#include <cdef21488.h>
#include <math.h>
#include <SRU.h>
#include <asm_sprt.h>
asm("#include <def21489.h>");
#define NOP asm volatile("nop;")
void initPLL(void);
void Mandelbrot(float zoom);
int main( void )
{
initPLL();
asm("bit clr FLAGS FLG1;"); //CS LOW
asm("bit set FLAGS FLG1;");//CS HIGH”
while(1)
{
asm("bit clr FLAGS FLG1;"); //CS LOW
asm("bit set FLAGS FLG1;");//CS HIGH”
}
}
void initPLL(){
int i, pmctlsetting;
// Set INDIV bit in PMCTL register
pmctlsetting = *pPMCTL;
pmctlsetting |= INDIV;
*pPMCTL= pmctlsetting;
// Program PLL multiplier to same value as CLK_CFGx pins/previously programmed value in software……
*pPMCTL = pmctlsetting;
// then place PLL in bypass mode
pmctlsetting |= PLLBP;
*pPMCTL = pmctlsetting;
//Wait for recommended number of cycles
for (i=0; i<4096; i++)
NOP;
// Bring PLL out of bypass mode by clearing PLLBP bit
*pPMCTL ^= PLLBP;
for (i=0; i<16; i++)
NOP;
pmctlsetting = *pPMCTL;
// Clear the previous PLL multiplier
pmctlsetting &= ~PLLM63;
// Clear the INDIV bit
pmctlsetting &= ~INDIV;
// or set the INDIV bit
// *pMCTL |= INDIV;
*pPMCTL= pmctlsetting;
// CLKIN= 25 MHz, Multiplier= 16, Divisor= 2, CCLK_SDCLK_RATIO 2.5.
// Fcclk = (CLKIN * 2 * M) / (N * D)
// VCO frequency = 2*fINPUT*PLLM = 2*25*16 = 800 <= fVCOmax (800 MHz)
// M = 1 to 64, N = 2,4,8,16 and D = 1 if INDIV = 0, D = 2 if INDIV = 1
pmctlsetting=SDCKR2_5|PLLM16|DIVEN|PLLD2;
*pPMCTL= pmctlsetting;
pmctlsetting|= PLLBP; //Setting the Bypass bit
pmctlsetting^= DIVEN; //Clearing the DIVEN bit
*pPMCTL= pmctlsetting; // Putting the PLL into bypass mode
//Wait for around 4096 cycles for the pll to lock.
for (i=0; i<5000; i++)
NOP;
pmctlsetting = *pPMCTL;
pmctlsetting ^= PLLBP; //Clear Bypass Mode
*pPMCTL = pmctlsetting;
for (i=0; i<16; i++)
NOP;
}
Problem, i don't get any FLAG1 toggle, and i really don't know why, (Photo of home made board for ADSP-21488, later it will be used in my master degree work, in university)
