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Add communication_delay also to dl_it timeout

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This commit is contained in:
Philippe Teuwen 2019-04-22 02:44:06 +02:00
parent f29facd15a
commit d6892136ac
2 changed files with 14 additions and 1 deletions
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4
client/comms.c
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@ -706,6 +706,10 @@ static bool dl_it(uint8_t *dest, uint32_t bytes, uint32_t start_index, PacketRes
uint32_t bytes_completed = 0;
timeout_start_time = msclock();
// Add delay depending on the communication channel & speed
if (ms_timeout != (size_t)-1)
ms_timeout += communication_delay();
while (true) {
if (getReply(response)) {

11
doc/new_frame_format.txt
View file

@ -256,7 +256,7 @@ struct timeval timeout = {
.tv_usec = 100000 // 100 000 micro seconds
};
Add automatically some communication delay in the WaitForResponseTimeout timeout
Add automatically some communication delay in the WaitForResponseTimeout & dl_it timeouts
Only when using FPC, timeout = 2* empirically measured delay (FTDI cable)
Empirically measured delay (FTDI cable) with "hw pingng 512" :
usb -> 6.. 32ms
@ -269,6 +269,11 @@ static size_t communication_delay(void) {
return 100;
}
Because some commands send a lot of frames before finishing (hw status, lf read,...),
WaitForResponseTimeout & dl_it timeouts are reset at each packet reception,
so timeout is actually counted after latest received packet,
it doesn't depend anymore on the number of received packets.
Needed to tune pm3 RX usart maxtry
(common/usart.c)
uint32_t usart_read_ng(uint8_t *data, size_t len) {
@ -303,6 +308,10 @@ time client/proxmark3 -p /dev/ttyUSB0 -b 115200 -c "hw status"
time client/proxmark3 -p /dev/ttyUSB0 -b 9600 -c "hw status"
5.75s
time client/proxmark3 -p /dev/ttyUSB0 -b 9600 -c "lf read"
50.38s
time client/proxmark3 -p /dev/ttyUSB0 -b 115200 -c "lf read"
6.28s
Reference frames
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