From 1c091062696f541168b91fcfa18ed25519aa6fe5 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 28 Apr 2013 23:05:18 -0700 Subject: [PATCH] altos: Clear any broken cc1120 TX fifo bits before transmitting This just goes and clears the transmitter before using it, just in case it got wedged somehow. It also clears the bits while waiting for the radio to go idle, otherwise it'd never make it. Signed-off-by: Keith Packard --- src/drivers/ao_cc1120.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/drivers/ao_cc1120.c b/src/drivers/ao_cc1120.c index bad0c856..07ebf835 100644 --- a/src/drivers/ao_cc1120.c +++ b/src/drivers/ao_cc1120.c @@ -272,6 +272,8 @@ ao_radio_idle(void) uint8_t state = ao_radio_strobe(CC1120_SIDLE); if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_IDLE) break; + if ((state >> CC1120_STATUS_STATE) == CC1120_STATUS_STATE_TX_FIFO_ERROR) + ao_radio_strobe(CC1120_SFTX); } /* Flush any pending TX bytes */ ao_radio_strobe(CC1120_SFTX); @@ -715,11 +717,17 @@ ao_radio_send(const void *d, uint8_t size) uint8_t this_len; uint8_t started = 0; uint8_t fifo_space; + uint8_t q; encode_len = ao_fec_encode(d, size, tx_data); ao_radio_get(encode_len); + ao_radio_abort = 0; + + /* Flush any pending TX bytes */ + ao_radio_strobe(CC1120_SFTX); + started = 0; fifo_space = CC1120_FIFO_SIZE; while (encode_len) { -- 2.47.2