sys64738
/
blackmagic
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Don't send anything on USB if not configured or DTR is released.

This commit is contained in:
Gareth McMullin 2011-11-12 13:46:16 +13:00
parent 33e1352c34
commit 7b13bae8dc
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/stm32/gdb_if.c
View File

@ -39,6 +39,12 @@ void gdb_if_putchar(unsigned char c, int flush)
{ {
buffer_in[count_in++] = c; buffer_in[count_in++] = c;
if(flush || (count_in == VIRTUAL_COM_PORT_DATA_SIZE)) { if(flush || (count_in == VIRTUAL_COM_PORT_DATA_SIZE)) {
/* Refuse to send if USB isn't configured, and
* don't bother if nobody's listening */
if((cdcacm_get_config() != 1) || !cdcacm_get_dtr()) {
count_in = 0;
return;
}
while(usbd_ep_write_packet(1, buffer_in, count_in) <= 0); while(usbd_ep_write_packet(1, buffer_in, count_in) <= 0);
count_in = 0; count_in = 0;
} }