nRF240L01 with STM8L051F3

[Omi]

Hi, I am looking for procedure to make it work nRF240L01? I am getting documents for Arduino but as you know that is not understandable, with Arduino it worked but i don't understood. Now i want to make it work with STM8L051F3. STM8L051F3 is 8 bit ultra low power controller. I am looking for procedure like what steps i have to follow so i can send data to another nRF240L01. Which commands i have to send. I want to transmit data after every 1 sec and then it will go in power down. Receiver will be always in receiver mode.

[o.hojvat]

I was working on other matters for a week and now comeback with NRF24L01+

Thank you for your suggestions. In one case I can use a processor with 3,6V so no level problem

In other case, with 5V supply, MOSI, CLK, CE, CSN are input with no clipping and tolerating 5V

MISO seems to be open drain and with 4K7 resistor to+5V is OK for procesor SPI data input.

A similar resistor at IRQ has not any usefull level correction, but I wil place an small mosfet (2N7002)

and 4k7 drain to +5V resistor as inverter.  Procesor interrupt input to be set as active for low to high transition

I am writing a new assembler following your mentioned steps. 

After a carefull revision of soft and hardware,  I will test and inform you about it

Regards, Osvaldo

[ovrebekk]

Hi Osvaldo

o.hojvat said:

In other case, with 5V supply, MOSI, CLK, CE, CSN are input with no clipping and tolerating 5V

You mean the nRF24L01+ appears to work fine even if you apply 5V on the signal lines? 

I would strongly discourage this if you are planning to go to production with this project. Using the part outside the specified operating range means you could have unpredictable issues down the line, and there is a higher risk that devices will stop working in the field even if they might work on your desk. 

o.hojvat said:

After a carefull revision of soft and hardware,  I will test and inform you about it

Sounds like a plan. Good luck

Best regards
Torbjørn

[VE3ID]

ovrebekk said:

-- PTX -- 1) Set the PWR_UP bit in the CONFIG register 2) Set DYNPD to 0x3F 3) Set the EN_DPL bit in the FEATURE register 4) Upload a payload 5) Pulse CE for 10 us 6) Add a delay (1ms+) and repeat from 4) --PRX-- 1) Set the PWR_UP and PRIM_RX bits in the CONFIG register 2) Set DYNPD = 0x3F 3) Set the EN_DPL bit in the FEATURE register 4) Set CE high 5) Wait for the IRQ line to go low 6) Read out the RX payload 7) Repeat from 5)

Dear Torbjørn,

I just found this while seeking an answer to my own problem. I am programming  in C using an NXP FRDM-K64F dev kit which provides a handy socket just made for common modules using your chip.I have succeeded in getting TX to work and can see my packets going out on a sniffer, but never can get an RX packet to pull IRQ.  I just went through your notes and am doing exactly the same, except I am not setting up DPL. Should it still work or is DPL mandatory?