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opdracht 2.5

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This commit is contained in:
Guilliam Lutz
2021-03-17 09:54:54 +01:00
parent 64b5ea3204
commit b81fdc484a
7 changed files with 160 additions and 127 deletions
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19
Microcontrollers/opdracht C/main.c
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@@ -12,7 +12,7 @@
* NOTES : Turn ON switch 15, PB1/PB2/PB3 to MISO/MOSI/SCK
*/
#define F_CPU 10e6
#include <avr/io.h>
#include <avr/io.h>[-]
#include <util/delay.h>
#define BIT(x) ( 1<<x )
#define DDR_SPI DDRB // spi Data direction register
@@ -83,7 +83,7 @@ spi_slaveSelect(0); // Select display chip (MAX7219)
spi_slaveDeSelect(0); // Deselect display chip
spi_slaveSelect(0); // Select display chip
spi_write(0x0B); // Register 0B: Scan-limit
spi_write(0x03); // -> 1 = Display digits 0..1 the hex value here selects how many segments get initialized
spi_write(0x07); // -> 1 = Display digits 0..1 the hex value here selects how many segments get initialized
spi_slaveDeSelect(0); // Deselect display chip
spi_slaveSelect(0); // Select display chip
spi_write(0x0C); // Register 0B: Shutdown register
@@ -112,22 +112,15 @@ DDRB=0x01; // Set PB0 pin as output for display select
spi_masterInit(); // Initialize spi module
displayDriverInit(); // Initialize display chip
// clear display (all zero's)
for (unsigned char i =1; i<=4; i++)
for (unsigned char i =1; i<=8; i++)
{
// spi_slaveSelect(0); // Select display chip
//spi_write(i); // digit adress: (digit place)
//spi_write(0); // digit value: 0
//spi_slaveDeSelect(0); // Deselect display chip
spi_writeCommand(i,i);
spi_writeCommand(i,0);
}
wait(1000);
// write 4-digit data
for (unsigned char i =1; i<=4; i++)
for (unsigned char i =1; i<=8; i++)
{
//spi_slaveSelect(0); // Select display chip
//spi_write(i); // digit adress: (digit place)
//spi_write(i); // digit value: i (= digit place)
//spi_slaveDeSelect(0); // Deselect display chip
spi_writeCommand(i,i);
wait(1000);
}