ATAVRSB202 Atmel, ATAVRSB202 Datasheet - Page 101

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ATAVRSB202

Manufacturer Part Number
ATAVRSB202
Description
KIT BATT MGMT FOR ATMEGA32HVB
Manufacturer
Atmel
Datasheets

Specifications of ATAVRSB202

Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
8042B–AVR–06/10
Note:
Assembly Code Example
C Code Example
SPI_MasterInit:
SPI_MasterTransmit:
void SPI_MasterInit(void)
{
}
void SPI_MasterTransmit(char cData)
{
}
; Set MOSI and SCK output, all others input
ldi
out
; Enable SPI, Master, set clock rate fck/16
ldi
out
ret
; Start transmission of data (r16)
out
Wait_Transmit:
; Wait for transmission complete
in r16,SPSR
sbrs r16,SPIF
rjmp Wait_Transmit
ret
/* Set MOSI and SCK output, all others input */
DDR_SPI = (1<<DD_MOSI)|(1<<DD_SCK);
/* Enable SPI, Master, set clock rate fck/16 */
SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR0);
/* Start transmission */
SPDR = cData;
/* Wait for transmission complete */
while(!(SPSR & (1<<SPIF)))
1. See “About Code Examples” on page 8.
;
r17,(1<<DD_MOSI)|(1<<DD_SCK)
DDR_SPI,r17
r17,(1<<SPE)|(1<<MSTR)|(1<<SPR0)
SPCR,r17
SPDR,r16
(1)
(1)
ATmega16HVB/32HVB
101

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