crewID/libnfc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add 10ms delay for ARYGON-APDB (PN532 based): some stability issues when reading a tag many times.

Browse source
This commit is contained in:
Romuald Conty 2009-09-09 13:43:16 +00:00
parent a58ac6926d
commit 9e60b6e392
1 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
src/dev_arygon.c
View file

@ -150,6 +150,7 @@ bool dev_arygon_transceive(const dev_spec ds, const byte_t* pbtTx, const uint32_
return false; return false;
} }
/** @todo Find why this delay are needed. Maybe in PN532 datasheet, but I (Romuald) haven't it... */
/** @note ARYGON-APDB need 20ms between sending and receiving frame. No information regarding this in ARYGON datasheet... */ /** @note ARYGON-APDB need 20ms between sending and receiving frame. No information regarding this in ARYGON datasheet... */
#ifdef _WIN32 #ifdef _WIN32
Sleep(20); Sleep(20);
@ -157,11 +158,11 @@ bool dev_arygon_transceive(const dev_spec ds, const byte_t* pbtTx, const uint32_
usleep(20000); usleep(20000);
#endif #endif
/** @note ARYGON-APDB need 20ms more to be able to report (correctly) present tag. */ /** @note ARYGON-APDB need 30ms more to be stable (report correctly present tag, at each try: 20ms seems to be enought for one shot...) */
#ifdef _WIN32 #ifdef _WIN32
Sleep(20); Sleep(30);
#else #else
usleep(20000); usleep(30000);
#endif #endif
if (!rs232_receive((serial_port)ds,abtRxBuf,&uiRxBufLen)) { if (!rs232_receive((serial_port)ds,abtRxBuf,&uiRxBufLen)) {