RE: NRF24L01+ PIPE

Hung Bui — Fri, 02 Dec 2016 12:14:33 GMT

No I don't think so. You can only write 1 byte to RX_ADDR_P2 as shown in page 60 in the spec. Try to write only 0x01 to RX_ADDR_P2.

RE: NRF24L01+ PIPE

krishna — Fri, 02 Dec 2016 06:49:02 GMT

Hi Hung, First of all Thank you very much for reply,

Have you looked at how the address on Pipe 2 to 5 is configured in Figure 13 at section 7.6 in the nRF24L01p Product Spec?

Yes i looked that and i hope i did that, it is mentioned in the above code i posted.

enter code here

// for pipe 0
void nRF24L01_TxPacket(unsigned char * tx_buf)
{
	PORT3_RF_OUT clr BIT(CE);	//Standby	
	nRF24L01_SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS_P0, TX_ADR_WIDTH); // Send Address
	nRF24L01_SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); 			 //send data
//	nRF24L01_SPI_RW_Reg(WRITE_REG + CONFIG, 0x0C);   		 // Send Out
	PORT3_RF_OUT set BIT(CE);
	//delay_us(40);
        _NOP();
         _NOP();
}



// for pipe 1
void nRF24L01_TxPacket(unsigned char * tx_buf)
{
	PORT3_RF_OUT clr BIT(CE);	//Standby	
	nRF24L01_SPI_Write_Buf(WRITE_REG + RX_ADDR_P1, TX_ADDRESS_P1, TX_ADR_WIDTH); // Send Address
	nRF24L01_SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); 			 //send data
//	nRF24L01_SPI_RW_Reg(WRITE_REG + CONFIG, 0x0C);   		 // Send Out
	PORT3_RF_OUT set BIT(CE);
	//delay_us(40);
        _NOP();
         _NOP();
}



// for pipe 2
void nRF24L01_TxPacket(unsigned char * tx_buf)
{
	PORT3_RF_OUT clr BIT(CE);	//Standby	
	nRF24L01_SPI_Write_Buf(WRITE_REG + RX_ADDR_P2, TX_ADDRESS_P2, TX_ADR_WIDTH); // Send Address
	nRF24L01_SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH); 			 //send data
//	nRF24L01_SPI_RW_Reg(WRITE_REG + CONFIG, 0x0C);   		 // Send Out
	PORT3_RF_OUT set BIT(CE);
	//delay_us(40);
        _NOP();
         _NOP();
}

and same for P3,P4 and P5.

P0 and P1 working fine. But P2-5 was not working.

Please check my code and let me what mistake i did?

Thanks, Regards, Krishna.

RE: NRF24L01+ PIPE

Hung Bui — Thu, 01 Dec 2016 13:11:22 GMT

Hi Krishna,

Have you looked at how the address on Pipe 2 to 5 is configured in Figure 13 at section 7.6 in the nRF24L01p Product Spec?

The address on those pipe share the same first 4 bytes with RX_ADDR_P1 and has only one unique byte.

You would need to configure your TX to match with the address to be able to send to those pipe.