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Update lfops.c

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Fixed lf t55 reset
This commit is contained in:
mwalker33 2019-07-06 15:20:25 +10:00
parent d7569065cb
commit dcd936a1da
1 changed files with 10 additions and 12 deletions
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22
armsrc/lfops.c
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@ -1201,11 +1201,13 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
/*
// Original Timings for reference
//note startgap must be sent after tag has been powered up for more than 3ms (per T5557 ds)
#define START_GAP 31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc)
#define WRITE_GAP 20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc)
#define WRITE_0 18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc)
#define WRITE_1 50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) 432 for T55x7; 448 for E5550
#define READ_GAP 15*8
*/
/* Q5 timing datasheet:
@ -1240,15 +1242,6 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
* Write_0 Fast Mode | 8*8 | 12*8 | 16*8 |
* Write_1 Fast Mode | 24*8 | 28*8 | 32*8 |
*/
/*
//note startgap must be sent after tag has been powered up for more than 3ms (per T5557 ds)
#define START_GAP 31*8 //31*8 // was 250 // SPEC: 1*8 to 50*8 - typ 15*8 (or 15fc) - T5557: 10*8 to 50*8
#define WRITE_GAP 20*8 //20*8 // was 160 // SPEC: 1*8 to 20*8 - typ 10*8 (or 10fc) - T5557: 8*8 to 30*8 typ 50-150us
#define WRITE_0 18*8 //18*8 // was 144 // SPEC: 16*8 to 32*8 - typ 24*8 (or 24fc) - T5557: 16*8 to 31*8 typ 24*8
#define WRITE_1 50*8 //50*8 // was 400 // SPEC: 48*8 to 64*8 - typ 56*8 (or 56fc) - T5557: 48*8 to 63*8 typ 54*8 432 for T55x7; 448 for E5550
#define READ_GAP 15*8
*/
// Structure to hold Timing values. In future will be simplier to add user changable timings.
typedef struct {
@ -1374,7 +1367,7 @@ void T55xx_SendCMD (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) {
// Build Bit Stream to send.
memset (BitStream,0x00,sizeof(BitStream));
BitStreamLen = 0;
BitStreamLen = 0; // Ensure 0 bit index to start.
// Add Leading 0 and 1 of 4 reference bit
if ((downlink_mode == T55xx_DLMode_Leading0) || (downlink_mode == T55xx_DLMode_1of4))
@ -1427,8 +1420,8 @@ void T55xx_SendCMD (uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg) {
if (downlink_mode == T55xx_DLMode_LLR)
T55xxWriteBit (T55xx_LongLeadingReference,Timing); // Send Long Leading Start Reference
if (downlink_mode == T55xx_DLMode_1of4) { // 1 of 4 need to send 2 bits at a time
for ( i = 0; i < BitStreamLen; i+=2 ) {
if (downlink_mode == T55xx_DLMode_1of4) { // 1 of 4 need to send 2 bits at a time
for ( i = 0; i < BitStreamLen-1; i+=2 ) {
SendBits = (BitStream[BitStream_Byte(i )] >> (BitStream_Bit(i )) & 1) << 1; // Bit i
SendBits += (BitStream[BitStream_Byte(i+1)] >> (BitStream_Bit(i+1)) & 1); // Bit i+1;
T55xxWriteBit (SendBits & 3,Timing);
@ -1452,8 +1445,13 @@ void T55xxResetRead(void) {
// Add in downlink_mode when ready
// arg |= 0x00; // dlmode << 3 (00 default - 08 leading 0 - 10 Fixed - 18 1 of 4 )
//clear buffer now so it does not interfere with timing later
BigBuf_Clear_keep_EM();
T55xx_SendCMD (0, 0, 0, arg); //, true);
TurnReadLFOn(T55xx_Timing_FixedBit.READ_GAP);
// Acquisition
DoPartialAcquisition(0, true, BigBuf_max_traceLen(), 0);