SPIRAW Function of S2LP-SFX-DK

[CKim.18]

Please let me know the SpiRaw function data format in S2LP-SFX-DK.

in_buffer [0] - 0x00 is SPI Write, 0x01 is SPI READ, 0x80 is Command

in_buffer[1] - SPI Reigster Address or Command

in_buffer[2]~ - Write Data

[Winfred LU]

As you've already noticed:

in_buffer[0] : 0 = Write, 1 = Read, 0x80 = Command

in_buffer[1] : Register Address or Command

in_buffer[2 ~ n_bytes-1] : Data

Sometimes it is also used for raw data feeding into FIFO, in this case, the whole buffer contains data.

[CKim.18]

I'm just integration via difference MCU. but, still have problem of tht "5.6.2 Transmitter data modes - Direct through FIFO mode". Register setting "#define PCKTCTRL1_ADDR ((uint8_t)0x30)" Value is 0x04.

Your reference design source using write below two FIFO data via S2LPSpiRaw function.

 0,FF,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0

 0,FF,0,56,0,4C,0,49,0,42,0,39,0,33,0,2E,0,29,0,25,0,20,0,1E,0,1C,0,1A,0,18,

 0,17,0,16,0,15,0,13,0,13,0,11,0,11,0,10,0,10,0,F,0,F,0,E,0,E,0,D,0,D,0,D,0,

 D,0,C,0,C,0,C,0,C,0,C,0,B,0,B,0,B,0,B

Our using general FIFO access method

 0,FF, ==> FIFO Write Command 

 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ==> Data Write

 0,FF, ==> FIFI Write Command

 0,56,0,4C,0,49,0,42,0,39,0,33,0,2E,0,29,0,25,0,20,0,1E,0,1C,0,1A,0,18,

 0,17,0,16,0,15,0,13,0,13,0,11,0,11,0,10,0,10,0,F,0,F,0,E,0,E,0,D,0,D,0,D,0,

 D,0,C,0,C,0,C,0,C,0,C,0,B,0,B,0,B,0,B  ==> Data Write

after send to TX Command result to "IRQ_TX_FIFO_ERROR".

Could please let me know what is difference FIFO function method.

Thanks

[CKim.18]

HI ST Micro Team

I have more trying coding for "S2LPSpiRaw" function. but, It is same result for "IRQ_LOW_BATT_LVL".

Also, Our Reference Design H/W via "X-NUCLEO-S2915A1" and reference source is "BLE-Sub1GHz DK_2.0.0"

The difference between this is the front end module (SKY66420 vs SKY66431).

Please let us know about this issue and any advice.

static void priv_ST_MANUF_rf_load_first_ramp_up()

-----

  /* fill the 1st part of the FIFO */

  priv_ST_MANUF_SpiRaw_Ramp(18, (uint8_t*)zeroes, NULL,0);

  priv_ST_MANUF_SpiRaw_Ramp(82, (uint8_t*)st_manuf_context->bpsk_ramps->fifo_start_ramp_up_1, NULL,0)

SPI FIFO WRITE DATA

E: ## S2LPSpiRaw ## n_butes= 12, can_return but = 0 

E: [0, FF, 0, 0, 0]

E: WR DATA : [0,ff,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,]

E: SF_LIB : priv_ST_MANUF_SpiRaw_Ramp pwr_reduction:[0]

V: =====================================================================

E: ## S2LPSpiRaw ## n_butes= 52, can_return but = 0

E: [0, FF, 0, 56, 0]

E: WR DATA : [0,ff,0,56,0,4c,0,49,0,42,0,39,0,33,0,2e,0,29,0,25,0,20,0,1e,0,1c,0,1a,0,18,0,17,0,16,0,15,0,13,0,13,0,11,0,11,0,10,0,10,0,f,0,f,0,e,0,e,0,d,0,d,0,d,0,d,0,c,0,c,0,c,0,c,0,c,0,b,0,b,0,b,0,b,]

V: =====================================================================