參數(shù)資料
型號: DC956A
廠商: Linear Technology
文件頁數(shù): 30/40頁
文件大?。?/td> 0K
描述: BOARD DELTA SIGMA ADC LTC2485
軟件下載: QuikEval System
設(shè)計(jì)資源: DC956A Design File
DC956A Schematic
標(biāo)準(zhǔn)包裝: 1
系列: Easy Drive™, QuikEval™
ADC 的數(shù)量: 1
位數(shù): 24
采樣率(每秒): 6.8
數(shù)據(jù)接口: I²C,串行
工作溫度: 0°C ~ 70°C
已用 IC / 零件: LTC2485
已供物品:
相關(guān)產(chǎn)品: LTC2485CDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485IDD#TRPBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485IDD#PBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485CDD#PBF-ND - IC ADC 24BIT I2C 10-DFN
LTC2485
36
2485fc
*******************************************************************************/
signed int32 read_LTC2485(char addr, char cong)
{
struct fourbytes
// Dene structure of four consecutive bytes
{
// To allow byte access to a 32 bit int or oat.
int8 te0;
//
int8 te1;
// The make32() function in this compiler will
int8 te2;
// also work, but a union of 4 bytes and a 32 bit int
int8 te3;
// is probably more portable.
};
union
// adc_code.bits32
all 32 bits
{
// adc_code.by.te0
byte 0
signed int32 bits32;
// adc_code.by.te1
byte 1
struct fourbytes by;
// adc_code.by.te2
byte 2
} adc_code;
// adc_code.by.te3
byte 3
// Start communication with LTC2485:
i2c_start();
if(i2c_write(addr | WRITE))// If no acknowledge, return zero
{
i2c_stop();
return 0;
}
i2c_write(cong);
i2c_start();
i2c_write(addr | READ);
adc_code.by.te3 = i2c_read();
adc_code.by.te2 = i2c_read();
adc_code.by.te1 = i2c_read();
adc_code.by.te0 = i2c_read();
i2c_stop();
return adc_code.bits32;
} // End of read_LTC2485()
/*** initialize() **************************************************************
Basic hardware initialization of controller and LCD, send Hello message to LCD
*******************************************************************************/
void initialize(void)
{
// General initialization stuff.
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
setup_counters(RTCC_INTERNAL,RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
lcd_init();
// Initialize LCD
delay_ms(6);
printf(lcd_putc, “Hello!”);
// Obligatory hello message
delay_ms(500);
// for half a second
} // End of initialize()
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