SparkFun Forums

[jeans_love]

the PTX seems work and IRQ interrupt appears.But I can't get the IRQ interrupt on the PRX.Maybe 1/1000 i can find the IRQ ping goes to low,and read the correct data from FiFo.So i think it's weird and i can't get the condition when it happened.I don't konw what's wrong?
void RX_Mode(void)
{
NRF24L01_SPI_P1OUT &= ~NRF24L01_SPI_CE; //Idle ,No data transmit
SPI_RW_Reg(FLUSH_RX,0);
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_LENGTH); // Writes TX_Address to nRF24L01
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_LENGTH);//RX_Addr0
SPI_RW_Reg(WRITE_REG + EN_AA, 0x00); // disable Auto.Ack:Pipe0
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0
SPI_RW_Reg(WRITE_REG + RF_CH, 92); // Select RF channel 40
SPI_RW_Reg(WRITE_REG + RX_PW_P0, TX_PLOAD_WIDTH); // Select same RX payload width as TX Payload width
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x0f);
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f);
DelayMs(5);
NRF24L01_SPI_P1OUT |= NRF24L01_SPI_CE;
DelayMs(20);
}

void TX_Mode(void)
{
NRF24L01_SPI_P1OUT &= ~NRF24L01_SPI_CE; //Idle ,No data transmit
SPI_RW_Reg(WRITE_REG + SETUP_AW,0x02);
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_LENGTH); // Writes TX_Address to nRF24L01
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_LENGTH); // RX_Addr0 same as TX_Adr for Auto.Ack
SPI_Write_Buf(WR_TX_PLOAD, TX_PAYLOAD, TX_PLOAD_WIDTH); // Writes data to TX payload
SPI_RW_Reg(WRITE_REG + EN_AA, 0x00); // Enable Auto.Ack:Pipe0
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0
SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x00); // 500μs + 86μs, 10 retrans
SPI_RW_Reg(WRITE_REG + RF_CH, 92); // Select RF channel 40
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x0f); // TX_PWR:0dBm, Datarate:2Mbps, LNA:HCURR

SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // Set PWR_UP bit, enable CRC(2 bytes) & Prim:TX. MAX_RT & TX_DS enabled
DelayMs(2);
NRF24L01_SPI_P1OUT |= NRF24L01_SPI_CE;
DelayUs(30);
NRF24L01_SPI_P1OUT &= ~NRF24L01_SPI_CE;
}

hookups1534
viewtopic.php?t=6946&highlight=nrf24l01
just like this!

[lucicop]

From a first view, I see that in RX you are disabling automatic ACK, and in TX you are enabling it. Enabling autoACK enables Enhanced Shockburst mode, which generates a different packet format, so you won't receive anything. You should have the same configuration for this register both at TX and RX.

[jeans_love]

From a first view, I see that in RX you are disabling automatic ACK, and in TX you are enabling it. Enabling autoACK enables Enhanced Shockburst mode, which generates a different packet format, so you won't receive anything. You should have the same configuration for this register both at TX and RX.

sorry,wrong remark!it should be "disable auto ack"

[jeans_love]

Oh!I forget "SPI_RW_Reg(WRITE_REG + SETUP_AW,0x02); " on PRX
Now it works well!