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adjustments

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This commit is contained in:
iceman1001 2020-04-10 10:27:28 +02:00
commit 732c012be7
3 changed files with 13 additions and 4 deletions
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10
armsrc/iso14443b.c
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@ -29,7 +29,7 @@
# define FWT_TIMEOUT_14B 35312
#endif
#ifndef ISO14443B_DMA_BUFFER_SIZE
# define ISO14443B_DMA_BUFFER_SIZE 256
# define ISO14443B_DMA_BUFFER_SIZE 512 //changed this from 256
#endif
#ifndef RECEIVE_MASK
# define RECEIVE_MASK (ISO14443B_DMA_BUFFER_SIZE-1)
@ -37,7 +37,7 @@
// Guard Time (per 14443-2)
#ifndef TR0
# define TR0 0
# define TR0 32 //this value equals 8 ETU = 32 ssp clk (w/ 424 khz)
#endif
// Synchronization time (per 14443-2)
@ -261,6 +261,10 @@ static void CodeIso14443bAsTag(const uint8_t *cmd, int len) {
// 80/fs < TR1 < 200/fs
// 10 ETU < TR1 < 24 ETU
// Send TR1.
// 10-11 ETU * 4times samples ONES
for (int i = 0; i < 10; i++) { SEND4STUFFBIT(1); }
// Send SOF.
// 10-11 ETU * 4times samples ZEROS
for (int i = 0; i < 10; i++) { SEND4STUFFBIT(0); }
@ -307,7 +311,7 @@ static void CodeIso14443bAsTag(const uint8_t *cmd, int len) {
//for(i = 0; i < 10; i++) { ToSendStuffBit(0); }
// why this?
for (int i = 0; i < 40; i++) { SEND4STUFFBIT(1); }
for (int i = 0; i < 2; i++) { SEND4STUFFBIT(1); }
//for(i = 0; i < 40; i++) { ToSendStuffBit(1); }
// Convert from last byte pos to length