Send SPI command to CC1101

pinkfloyd11 · Joined: 02 Jul 2007 Posts: 247

Hello

I have problem on while(miso)
Read seem to work also without while(miso)
Write don't work again....

'////////////////////////////////////////////
' SPI SEND and RECEIVE COMMAND
'////////////////////////////////////////////

'*********************************
'Direttive al compilatore
'*********************************
$Regfile="m48pdef.dat"
$Crystal=4000000
$hwstack=40
$swstack=16
$framesize=32
'*********************************
$Include "CC1101 REGISTER.inc"

CONFIG Spi = Hard , Interrupt = Off , Data Order = Msb , Master = Yes , Polarity = Low , Phase = 0 , Clockrate = 16, NOSS = 0
SPIINIT

DECLARE SUB CONFRONTA_DUE_LETTURE()
DECLARE SUB SCRIVI_LEGGI_E_CONFRONTA()

LED_ROSSO Alias PortD.3
CONFIG LED_ROSSO = Output

LED_VERDE Alias PortC.2
CONFIG LED_VERDE = Output

CHIP_SELECT Alias Portb.2
CONFIG CHIP_SELECT = Output

Dim Reg_Part_Number as Byte
Dim Reg_Curr_Version as Byte
Dim Reg_Sync_W as Byte
Dim Reg_Sync_R as Byte

Dim Byte_Ricevuto_1 as Byte
Dim Byte_Ricevuto_2 as Byte

Dim Valore_Scritto as Byte
Dim Valore_Letto as Byte
Dim S As String * 8

'Dal Datasheet table 43
'0x04 SYNC1 Sync word, high byte
'[7] := Header --> 1
'[6] := Burst --> 0
'[5-0] := Indirizzo Registro --> 0x00 --> 000100
'[Byte completo] = 00000100
S = "00000100"
Reg_Sync_W = binval (S)

'Dal Datasheet table 43
'0x04 SYNC1 Sync word, high byte
'[7] := Header --> 1
'[6] := Burst --> 0
'[5-0] := Indirizzo Registro --> 0x00 --> 000100
'[Byte completo] = 00000100
S = "10000100"
Reg_Sync_R = binval (S)

'Dal Datasheet table 44:
'0x30 (0xF0) PARTNUM Part number
'[7] := Header --> 1
'[6] := Burst --> 0
'[5-0] := Indirizzo Registro --> 0x30 --> 110000
'[Byte completo] = 10110000
S = "10110000"
Reg_Part_Number = binval (S)

'0x31 (0xF1) VERSION Current version number
'[7] := Header --> 1
'[6] := Burst --> 0
'[5-0] := Indirizzo Registro --> 0x30 --> 110001
'[Byte completo] = 10110001
S = "10110001"
Reg_Curr_Version = binval (S)

DO

'CALL CONFRONTA_DUE_LETTURE
CALL SCRIVI_LEGGI_E_CONFRONTA

Wait 1

LOOP

'_______________________________________________________________________________________

SUB CONFRONTA_DUE_LETTURE()

Byte_Ricevuto_1 = 11
Byte_Ricevuto_2 = 22

'READ 1
SET LED_ROSSO
RESET CHIP_SELECT
SPIout Reg_Part_Number, 1
SPIin Byte_Ricevuto_1, 1
SET CHIP_SELECT
waitms 200
RESET LED_ROSSO

Wait 1

'READ 2
SET LED_VERDE
RESET CHIP_SELECT
SPIout Reg_Part_Number, 1
SPIin Byte_Ricevuto_2, 1
SET CHIP_SELECT
waitms 200
RESET LED_VERDE

waitms 400

IF Byte_Ricevuto_1 = Byte_Ricevuto_2 THEN
Byte_Ricevuto_1 = 11
Byte_Ricevuto_2 = 22
SET LED_ROSSO
WAIT 10
END IF

END SUB

'_______________________________________________________________________________________
SUB SCRIVI_LEGGI_E_CONFRONTA()

Valore_Scritto = 11
Valore_Letto = 22

'WRITE ROSSO
SET LED_ROSSO

RESET CHIP_SELECT
waitms 1
while PINB.4=1
wend
SPIout Reg_Sync_W, 1
waitms 1
SPIout Valore_Scritto, 1
waitms 1
SET CHIP_SELECT

Waitms 200
RESET LED_ROSSO

'READ VERDE
SET LED_VERDE
Waitms 1
RESET CHIP_SELECT
Waitms 1
'while PINB.4=1
'wend
SPIout Reg_Sync_R, 1
waitms 1
SPIin Valore_Letto, 1
Waitms 1
SET CHIP_SELECT

waitms 200
RESET LED_VERDE

IF Valore_Scritto = Valore_Letto THEN
Valore_Scritto = 11
Valore_Letto = 22
SET LED_ROSSO
WAIT 5
RESET LED_ROSSO
WAIT 1
END IF

END SUB

'_______________________________________________________________________________________

'_______________________________________________________________________________________

'_____________________________