From 9394393c24c0a96b94319f2d0aa78fb498a121c9 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Fri, 9 Apr 2010 17:51:01 -0700 Subject: [PATCH] Only have the slave return a packet if it received one. When the receive is aborted to switch modes, it's important to not immediately re-acquire the radio and try to send a packet as the aborting thread won't know to kick the receiver again. This prevents the 'C' command from locking up as it tries to stop the packet slave before turning on the transmitter. Signed-off-by: Keith Packard --- src/ao_packet_slave.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/ao_packet_slave.c b/src/ao_packet_slave.c index 4c947fbf..e03ebdc3 100644 --- a/src/ao_packet_slave.c +++ b/src/ao_packet_slave.c @@ -20,12 +20,15 @@ void ao_packet_slave(void) { + uint8_t status; + ao_radio_set_packet(); ao_tx_packet.addr = ao_serial_number; ao_tx_packet.len = AO_PACKET_SYN; while (ao_packet_enable) { - ao_packet_recv(); - ao_packet_send(); + status = ao_packet_recv(); + if (status & AO_DMA_DONE) + ao_packet_send(); } ao_exit(); } -- 2.30.2