SparkFun Forums

[kpainter]

I have an application where I am sending a fixed packet length of 32 bytes to data pipe 1. I have set the data width to 32, I have auto acknowledge enabled on P1. I have the TX and P0 address of the transmitter set to the P1 address of the receiver. The data makes it to the receiver OK and is very repeatable but I don't ever get an acknowledge interrupt. I always get the MAX_RT interrupt. At one time, I did have the auto-acknowledge working.

I have read back all the registers and they are what I expect them to be.

I am racking my brains trying to figure out what could possibly suppress the auto-ack mechanism. Anyone have any ideas what might be going astray?

Regards,
kpainter

[RonnyM]

You will only get an acknowledgement from pipe 0. Sorry. You will have to do this in software.
Ron

[kpainter]

Hi Ron,
I am having trouble getting a message to post due to spam filter. I am expecting the ack on pipe 0. I don't think I was clear. ptx(tx_addr), ptx(rx_p0) and prx(rx_p1) are set to be all the same address. en_aa on prx and ptx, pipe 0 and 1 are set. I never get tx_ds interrupt.

Regards,
kpainter

[lucicop]

Hi,

Make sure that the last byte for ALL pipes addresses is unique. Also, be careful that you need to write LSB first for the addresses. You need to have auto_ack activated for pipe1 at the receiver and for pipe0 at the transmitter. The Pipe0 address at the transmitter must be equal to the Pipe1 address at the receiver.

[kpainter]

Hi Lucicop,
Thanks for your response. That was it. I am having terrible problems getting past the spam filter on this forum so I can't elaborate. Forum is broken for me. Thanks,
kpainter