diff options
Diffstat (limited to 'serial.c')
| -rw-r--r-- | serial.c | 14 |
1 files changed, 11 insertions, 3 deletions
@@ -262,6 +262,7 @@ int serialport_write(unsigned char *buf, unsigned int writecnt) #else ssize_t tmp = 0; #endif + unsigned int empty_writes = 250; /* results in a ca. 125ms timeout */ while (writecnt > 0) { #ifdef _WIN32 @@ -273,9 +274,16 @@ int serialport_write(unsigned char *buf, unsigned int writecnt) msg_perr("Serial port write error!\n"); return 1; } - if (!tmp) - msg_pdbg("Empty write\n"); - writecnt -= tmp; + if (!tmp) { + msg_pdbg2("Empty write\n"); + empty_writes--; + programmer_delay(500); + if (empty_writes == 0) { + msg_perr("Serial port is unresponsive!\n"); + return 1; + } + } + writecnt -= tmp; buf += tmp; } |