I/O Line Passing -- Only one sample

I’m testing out the I/O line sampling feature and running into an issue where I only get one packet from the remote radio. If I reboot the remote it again sends one packet then nothing more.

My remote radio configuration is:

XBee Address

ATMY 5678

Destination Low

ATDL 1234

Group Address

ATID 1111

API Enable

ATAP 2

Baud Rate

ATBD 3

Set pin 20 to ADC input

ATD0 2

Collect data every 100ms

ATIR 64

Send data every sample

ATIT 1

Save

ATWR

My base radio configuration is:

XBee Address

ATMY 1234

Destination Low

ATDL 5678

Group Address

ATID 1111

API Enable

ATAP 2

Baud Rate

ATBD 3

Pass I/O data to UART

ATIU 1

Save

ATWR

When I start up the remote radio, it sends the following packet:

7e 00 0a 83 56 78 24 00 01 02 00 03 ff 85

7e Start Byte
00 Length MSB
0a Length LSB
83 API Identifier (Frame Data Start)
56 Source Address MSB
78 Source Address LSB
24 RSSI
00 Options
01 Number of Samples
02 Channel Indicator 1
01 Channel Indicator 2
03 ADC MSB
ff ADC LSB
85 Checksum

This packet looks correct (Nothing is attached to the ADC pin), but I never get any more packets from the remote. Thanks

I forgot to mention I am running the 1.0.A.5. firmware

It turns out that the device that was connected to the XBee serial pins was causing the problem