2011N42@16:06


DIPXCb`̐ݒ










2011N322@14:49

2009ŁA15`60炢܂ŉxグĂ
void cc1101_carrier_wave_setup(void)֐̉x␳sƂA426.4625}600Hz炢܂ł
ŕ␳ł悤ɂȂB








2011N317@14:46
CC1101̉xZT[ATmega88ADϊŃ[heXgŁA

d1.093V(ATmega88f[^V[g P.207)ƂAADϊ̃TvOl1024Ȃ̂ŁA
1.093/1024=0.001067V(1JEg)ƂāA

ADl0x316=790̂ŁA

7900.001067=0.843232421875Ƃlo͂ĂB





2011N315@9:27


void rx_fifo_get(rxfifo_data * rxfifo)
{
//	u8 len; 
	u8 * data; 
	 
	data  = (u8 *) rxfifo; 
	 
	cc1100_fifo_get(data,1); 
	data[0] += 2; 
	 
	cc1100_fifo_get(&data[1],rxfifo->length);
}

̒̃vOł

data  = (u8 *) rxfifo; 

dataƂϐrxfifõAhXw肵āA


cc1100_fifo_get(data,1); 
{A

rxfifo̍\̂̒Ƀf[^ATC悤ɂȂ悤ɂĂB






2011N315@16:01


bŕ
http://homepage1.nifty.com/toshio-k/prog/c/string.html

̃y[Wł̕񌟍s悤ɂB





2011N315@11:33


avr eeprom̃vO~OɂĂURL

http://lightjin619.tistory.com/entry/%EC%BD%94%EB%93%9C%EB%B9%84%EC%A0%BC-C%EC%BB%B4%ED%8C%8C%EC%9D%BC%EB%9F%AC-%EC%9A%94%EC%A0%90%EC%A0%95%EB%A6%AC-1




2011N39@10:01


݁Ag8MhzƁA

SPI͌݁ASPR1=0,SPR0=0,SPI2X=0Ł@fosc/4  Ȃ̂ŁASPI250kHzœ쒆B

I2C͌݁ATWBRWX^32ŁATWSRWX^TWPS1=0,TWPS0=0A8MHz / (16 + 2 * TWBR * 1) = 40kHzœ쒆B









2011N33@14:09

ATmega88ADCŎgpĂd1.1V1.0`1.2V܂ł̋e덷Ƃ̂ƁB

ATmega88f[^V[g@P.195





2011N33@13:05


݂ADC̒ɊւĂ͈UIB

iƂđ݂o

02001(LAgxǂ)
02009(LAgx)

2݂oƂɂB


INT1{^ALAgAGDO0s26MHz̃NbNg`o͂悤ɂ邱ƁB



܂Aq@Ae@̎ۂ̎dlƂ܂Ƃ߂邱ƁB








2011N31@21:27

xZT[ADl牷xɒ

((ADl*(1.1/1024))-0.747)/0.00247







2011N31@21:00

݁ACC1101̉xZT[̐lۂ̂̂A+14xlĂ܂ĂB
܂A02008̂݁A+7̒lĂ̂B










2011N31@17:23

݂̃vOłAAADϊsƁA1ڂɂƂADl23ڍsl\Ă܂肪邱Ƃ킩B





2011N31@15:34

ADC7[q1.0V͂Ă邱Ƃ𑪒

̂Ƃ1.0/0.001 = 1000@Ƃl̂ŁA16iɂ0x3EBƂlɂȂ͂B

ADC7ł0x3a1Ȃǂ̒lœǂł邱ƂmFB





2011N31@15:10


dgoȂŔA02006̃LAg␳fobOEEPROMݒɂ邱ƂYĂ
B









2011N31@10:13

dADCŃ`FbN邽߂̒[qADC7̓d`FbN邱ƁB
̒[q3V0.8VɕdAATmega88̓d1.1VŔrĂƂ̂ƁB

0x3FF=3VƂčlĂB

1JEg͖0.00107VƂčl邱ƂłB


Ȃ̂ŁA0.8VADC7[qɓ͂ĂꍇAADCH,ADCL̃WX^ɂ͖0x320͂Ă͂łB


2011N225@16:13


d(ATmegaVXeNbN8MHz)      cc1101AChԎɓd

ATmega88(ACh)
cc1101(ACh)        ---->           4.8mA



ATmega88(p[_E[h)
cc1101(ACh)        ---->           1.58mA







2011N225@15:47


d(ATmegaVXeNbN1MHz)

ATmega88(ACh)
cc1101(ACh)        ---->           2.1mA


ATmega88(ACh)
cc1101(X[v)        ---->           0.6mA


ATmega88(p[_E[h)
cc1101(X[v)        ---->           0.45uA







d(ATmegaVXeNbN8MHz)

ATmega88(ACh)
cc1101(ACh)        ---->           4.7mA


ATmega88(ACh)
cc1101(X[v)        ---->           3.2mA


ATmega88(p[_E[h)
cc1101(X[v)        ---->           0.45uA





2011N212@18:01


RX_SETUPXe[gŁA

cc1100_write_reg(CC1100_REG_PKTCTRL1,0x08);

̎ŁA

PKTCTRL1.APPEND_STATUS𖳌ɂĂ݂ƂA

TX0x0f(15byte)őMāARXFIFOɂ(15byte)œĂ邱Ƃ킩B





2011N212@17:42

RXMɁARX_DATA_CNTXe[g

rx_length = cc1100_read_reg_uartout(CC1100_REG_RXBYTES | CC1100_ACCESS_STATUS);
̎ŎMf[^oCg擾ƂA

TX0x0f(15byte)őMf[^ARXFIFOɂ(17byte)Ă邱Ƃ킩B

PKTCTRL1.APPEND_STATUSLB



2011N210@21:31

TXf[^̃Xe[gł
FIFO16oCgłāATX BYTE LENGTHł0x0fƓǂ݂Ă邱ƂmFĂB
̂ƂAFIFOɂCRC2oCg͏܂ĂȂB







2011N210@19:52

vAũoCg̕ύX̂߂̃WX^͂

MDMCFG1(addr:0x13) : 0x22 

MDMCFG1.NUM_PREAMBLE[2:0] = 2 Ȃ̂Number of preamble byte4ByteMĂ邱Ƃ킩B 








2011N24@15:38


RTCI2CʐMG[ɂȂ錴́ASCL,SDAMvAbvĂR10,R11̒R3.3Mł邱Ƃ킩B
̒ROāARTCƂ̒ʐMAtmega88̓RŃvAbv悤ɕύXB





2011N24@14:16

݂RTCƂI2CƂ̂ȂŁASCL̃NbNpX1g`80usecŁAU͖1.3V炢B













2011N24@11:45

S/N1101001S/N1101002Ƃ̊Ԃ20Z`x̋łCRC_OK̃f[^ʐM
\ȂƂmFB

̂ƂRXS/N1101002CRC_OKRSSIl͑0x13`0x19̊

dBmlƂĂ

cc1101.pdff[^V[gP.43


1) Read the RSSI status register
2) Convert the reading from a hexadecimal
number to a decimal number (RSSI_dec)
3) If RSSI_dec ? 128 then RSSI_dBm =
(RSSI_dec - 256)/2 ? RSSI_offset
4) Else if RSSI_dec < 128 then RSSI_dBm =
(RSSI_dec)/2 ? RSSI_offset

̎



0x19 = 25(dec)Ƃ
RSSI_offset = 74Ƃ

RSSI_dBm = (25/2)-74 = 14.5-74 = -59.5(dBm)ƂȂĂB












2011N23@18:18

S/N1101002SmartRF04EB+S/N1101003SmartRF04RXA
Ƃ7,8[g炢ĂƂ납Mł邱ƂmFB

܂ARXRSSI-51dBmxŎMĂƂ̂ƁB







2011N23@10:52

TI]{[ht̃AeiRXRSSI-60dbm




2011N23@10:44

΂̃bLōAeiRXƂRSSI-79dBm




2011N23@10:40

AeiRXƂRSSI-84dBmłƂĂB



2011N23@10:33

̒̃AeiRXƂRSSI-78dBmłƂĂB







2011N23@10:27

̒̃AeiRXƂRSSI-82dBmłƂĂB








2011N22@18:53

SmartRF04EBŃAeiȂŁARXāAq@̃f[^MꍇA1f[^MłȂB
CRCG[̂̂قƂǎMłȂBAeiȂƋɒ[ɎM\͂B






2011N22@18:39

S/N1101003{SmartRF04EB̑gݍ킹ŁARX点āAq@f[^΂ĎM
ƂAxCRCG[̃f[^MĂ܂ĂB肵ĂȂB




2011N22@15:50

SmartRF04EBRX
RX filter BW

50kHz
400kHz

ꂼɐݒ肵Ă݂100TXf[^ׂĎMłĂB




2011N22@14:50
Deviation1.586kHzɂāASmartRF04EBRXAq@TXŎMł悤ɂȂĂ邪A
RXSmartRF04EBRX filter BW200kHz`100kHzɐݒ肷ƁASf[^MłȂB

58kHz68kHzȂǂCRC OK̃f[^MłB





2011N128@11:27

ߋ̃LAĝݏo͂vO1101002ɓĂ݂Ƃĝ͂ȂƂmF



2011N126@17:57
reg_check();𕜊 0x22ԒnFREND0WX^0x10ɕύXĂ邱ƂmFB

݁A܂Amȃf[^g`͏oĂĂȂB


00\29
01\2e
02\3f
03\07
04\d3
05\91
06\ff
07\04
08\45
09\00
0a\00
0b\0c
0c\00
0d\10
0e\65
0f\c9
10\88
11\83
12\10
13\22
14\f8
15\47
16\07
17\32
18\04
19\76
1a\6c
1b\03
1c\40
1d\91
1e\87
1f\6b
20\f8
21\56
22\10
23\a9
24\0a
25\20
26\0d
27\41
28\00
29\59
2a\7f
2b\3f
2b\3f
2c\88
2d\31







2011N125@16:43


PKTCTRL0(0x08Ԓn)



LENGTH_CONFIG[1:0]

FIX Packet length modeAVariable Packet length modeAInfinite packet modẽ[hݒ肪B

Fixed packet length modeɂȂĂ͗lB



2011N124@15:53

EEPROM 0x00Ԓn0`255̊Ԃŕ␳l(1ڐ296Hz)

EEPROM 0x01Ԓn0x80񂾏ꍇ0x00Ԓn̒lZ
       ȊȌꍇ́AZB









2011N120@16:32

CC1101̃X[v[h4̎ނ̃X[v[hƂ̂ƂŁA
ɉēdJbgł邩eXgB
CC1101f[^V[gP.8̓eh4 Electrical Specificationsh







2011N120@13:40

ATmega88 + CC1101ƂX[v[hɂĂꍇ͓d296uA

ATmega88 X[v[hɂčsꍇ̓dʂ1.86mA

̂悤ɂȂB













2011N117@16:13

UART̃{[[g1200ɐݒ肵Ă邪APCłƒlƂ邱ƂłȂԁB

UBRR0L = 0x0d; // Baudrate 1200@bpsߎĺh13.333333333333333333333333333333h

{񓯊 (U2Xn=1)̐ݒ

BAUD = fosc /16*(UBBR0+1) = 13.333333333333333333333333333333


덷(%) = ((1142.857/1200)-1) * 100 = 덷5%xB








2011N117@14:25

MZT[t̃p[Z[u[h̊̓dʂ͖50uA
ZT[Ȃ̎̊̓dʂ͖29uA

Ȃ̂ŁAMZT[̏d20uAxƂƂB






2011N117@14:15

ATmega48ɑ΂ATmega88ŃRpĈ_E[hĂ܂B삪
ɃZbg悤ȓJԂBATmega48pɃRpCă_E[h
B





2011N117@10:35

p[_E[hAp[Z[u[hINT1ŕAꍇAɕKvȊԂ
}CR̓ggpꍇ"clk * 6"̊ԂKvɂȂƂ̂ƁB
܂AOUqgpꍇ"clk * 256"x̊ԂKvɂȂƂ̂ƁB
ATmega88f[^V[g19y[WQ





2011N117@10:26

g128kHzɂꍇ́AISP̃NbN128kHz / 4 =32kHz / 4 = 8kHzxɗƂȂ
ISPƃ}CRƂ̒ʐMłȂ̂ŒӁB





2011N117@10:14

INT1LOWpXo͂200usec炢ɒ邽߂ɁARl270kɕύXB
݁ACNbN128kHzŁA삳āAp[Z[u[h̕AINT1JE^2荞݂ƕp
삳ĂINT1荞݂gKł悤ɂȂB




2011N114@15:59
쒆ɏɃZbg͊C23RfT1uB_CTL[qLOWɂƂVCC1V炢錻ۂ
oĂBuEAEgVXeZbg\B





2011N114@10:14

CC1101AATmega88͂āAɓdꂽԂɂۂ̓dl0.05uAƂȂĂ邱ƂmFB