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1JDW 10/2008 Texas Instruments proprietary information
RSSI TRF7960EVM DIRECTIONS
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2JDW 10/2008 Texas Instruments proprietary information
STEP 1: SET PROTOCOL AND CHECK REGISTER SETTINGS
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3JDW 10/2008 Texas Instruments proprietary information
SCOPE SCREEN SHOT IN SPI MODE SET PROTOCOL
(ISO15693, HIGH DATA RATE, TX_ON)
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4JDW 10/2008 Texas Instruments proprietary information
STEP 2: SET RX WITH DIRECT COMMAND 1517
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5JDW 10/2008 Texas Instruments proprietary information
SCOPE SCREEN SHOT IN SPI MODE SET RECEIVER 1517 (GUI) or 97h (actual command)
1 0 10 0 1 1 1 THIS IS DUMMY CLK
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6JDW 10/2008 Texas Instruments proprietary information
STEP 3: CHECK INTERNAL RF WITH DIRECT COMMAND 1518 OR EXTERNAL RF WITH DIRECT COMMAND 1519
DIRECT COMMAND 1518 (CHECK INTERNAL RF) SHOWN
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7JDW 10/2008 Texas Instruments proprietary information
SCOPE SCREEN SHOT IN SPI MODE CHECK INTERNAL RF 1518 (GUI) or 98h (actual command)
THIS IS DUMMY CLK
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8JDW 10/2008 Texas Instruments proprietary information
STEP 4: READ REGISTER WITH DIRECT COMMAND 12ØF
Internal RSSI Value
(in this case)
(FROM ISSUING DIRECT COMMAND 1518 PRIOR TO DIRECT COMMAND 120F SHOWN)
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9JDW 10/2008 Texas Instruments proprietary information
SCOPE SCREEN SHOT IN SPI MODE READ RSSI VALUE 120F (GUI) or 4Fh (actual command)
RSSI VALUE (FROM CHECK EXTERNAL RF = 5Ch)
THIS IS DUMMY CLK
THIS IS 5Ch
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10JDW 10/2008 Texas Instruments proprietary information
ALT STEP 4: READ REGISTER WITH DIRECT COMMAND 12ØF
External RSSI Value
(in this case)
(FROM ISSUING DIRECT COMMAND 1519 PRIOR TO DIRECT COMMAND 120F SHOWN)
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11JDW 10/2008 Texas Instruments proprietary information
SCOPE SCREEN SHOT IN SPI MODE READ RSSI VALUE 120F (GUI) or 4Fh (actual command)
RSSI VALUE (FROM CHECK INTERNAL RF = 78h)
THIS IS DUMMY CLK
THIS IS 78h
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12JDW 10/2008 Texas Instruments proprietary information
STEP 5: CHANGE CHIP STATUS CONTROL REGISTER TO ’01’ (TURNS OFF TRANSMITTER)
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13JDW 10/2008 Texas Instruments proprietary information
STEP 6: SET RX WITH DIRECT COMMAND 1517
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14JDW 10/2008 Texas Instruments proprietary information
STEP 7: CHECK INTERNAL RF WITH DIRECT COMMAND 1518 OR EXTERNAL RF WITH DIRECT COMMAND 1519
DIRECT COMMAND 1518 (CHECK INTERNAL RF) SHOWN
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15JDW 10/2008 Texas Instruments proprietary information
STEP 8: READ REGISTER WITH DIRECT COMMAND 12ØF
Internal RSSI Value
(in this case)
(FROM ISSUING DIRECT COMMAND 1518 PRIOR TO DIRECT COMMAND 120F SHOWN)
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16JDW 10/2008 Texas Instruments proprietary information
ALT STEP 8: READ REGISTER WITH DIRECT COMMAND 12ØF
External RSSI Value
(in this case)
(FROM ISSUING DIRECT COMMAND 1519 PRIOR TO DIRECT COMMAND 120F SHOWN)
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17JDW 10/2008 Texas Instruments proprietary information
SCOPE SCREEN SHOT IN SPI MODE READ RSSI VALUE 120F (GUI) or 4Fh (actual command)
RSSI VALUE (FROM CHECK INTERNAL RF = 40h)
THIS IS DUMMY CLK
THIS IS 40h