AP32113 datasheet(32/38 Pages) INFINEON

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AP32113

Connecting Memory to the TC1130 External Bus Unit

(EBU)

Application Note

V1.0, 2006-02

3.8

Example to Program the SDRAM device present on TC1130

Triboard

This section shows an example to program the HYB39S256160-8 SDRAM device

present on the TC1130 Triboard with a simple LED blinking program.The aim of this

exercise is to Blink a LED connected to the Triboard (P0.7) using only SDRAM. No

interrupts will be used here, only a ‘for loop‘ for delay purposes

1. Write a simple program to blink the LED on P0.7The main program is fairly easy, the

port pin P0.7 is initialized as output and switched on and off. The ‘tc1130regs.h‘ file

declares all the TC1130 registers (i.e. Ports, Peripherals, …)

* blinky.c

* Example for using TC1130 board.

#include <tc1130regs.h>

void delay(void)

{

volatile int i,j,k;

for (i=0;i<5000;i++)

for (j=0;j<40;j++)

k = i+j;

}

int main(void)

{

// set P0.7 as output

P0_DIR_P7 = 1;

// main loop

while (1)

{

// set led on

P0_OUT_P7 = 1;

// small pause

delay();

// set led off

P0_OUT_P7 = 0;

// small pause

delay();

}

return 0;

}

1) The option is fastest setting and verified on TC1130 Triboard.

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