diff options
| author | Bernard Xiong <[email protected]> | 2019-02-24 23:47:17 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2019-02-24 23:47:17 +0800 |
| commit | 4723d5d4721a00aedfd806aeeba4e233ea987512 (patch) | |
| tree | 19db679cb8770ca91737a20ad01a7c863dbff4e2 | |
| parent | dcf52cf26753d63e818ccea934f4a1269c47ab3c (diff) | |
| parent | e2c0749d04652c8ea0934e0d2b3ca26733fad815 (diff) | |
Merge pull request #2361 from qgyhd1234/ymodem
[components][ymodem]ymodem 握手阶段增加超时重试，防止数据接收不全
| -rw-r--r-- | components/utilities/ymodem/ymodem.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/components/utilities/ymodem/ymodem.c b/components/utilities/ymodem/ymodem.c index c98c7f6cb6..716c702328 100644 --- a/components/utilities/ymodem/ymodem.c +++ b/components/utilities/ymodem/ymodem.c @@ -125,6 +125,7 @@ static rt_err_t _rym_do_handshake( rt_size_t i; rt_uint16_t recv_crc, cal_crc; rt_size_t data_sz; + rt_tick_t tick; ctx->stage = RYM_STAGE_ESTABLISHING; /* send C every second, so the sender could know we are waiting for it. */ @@ -149,8 +150,17 @@ static rt_err_t _rym_do_handshake( return -RYM_ERR_TMO; } - i = _rym_read_data(ctx, data_sz-1); - if (i != (data_sz-1)) + /* receive all data */ + i = 0; + /* automatic exit after receiving specified length data, timeout: 100ms */ + tick = rt_tick_get(); + while (rt_tick_get() <= (tick + rt_tick_from_millisecond(100)) && i < (data_sz-1)) + { + i += _rym_read_data(ctx, data_sz - 1); + rt_thread_mdelay(5); + } + + if (i != (data_sz - 1)) return -RYM_ERR_DSZ; /* sanity check */ |