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

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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
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7
src/dev_arygon.c
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@ -150,6 +150,7 @@ bool dev_arygon_transceive(const dev_spec ds, const byte_t* pbtTx, const uint32_
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... */
#ifdef _WIN32
Sleep(20);
@ -157,11 +158,11 @@ bool dev_arygon_transceive(const dev_spec ds, const byte_t* pbtTx, const uint32_
usleep(20000);
#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
Sleep(20);
Sleep(30);
#else
usleep(20000);
usleep(30000);
#endif
if (!rs232_receive((serial_port)ds,abtRxBuf,&uiRxBufLen)) {