From 62a38cc8835cc7b98a30ee3e670e6eb582ddd8cd Mon Sep 17 00:00:00 2001
From: marshmellow42 <marshmellowrf@gmail.com>
Date: Tue, 28 Feb 2017 13:18:52 -0500
Subject: [PATCH] adjust em4x05/em4x69 command timings to...
better conform to datasheet.
---
armsrc/lfops.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index c447fab0..75aa1342 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -1578,9 +1578,9 @@ void SendForward(uint8_t fwd_bit_count) {
fwd_bit_sz--; //prepare next bit modulation
fwd_write_ptr++;
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
- WaitUS(55*8); //55 cycles off (8us each)for 4305 /another reader has 37 here...
+ WaitUS(55*8); //55 cycles off (8us each)for 4305 //another reader has 37 here...
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
- WaitUS(18*8); //16 cycles on (8us each) // another reader has 18 here
+ WaitUS(18*8); //18 cycles on (8us each)
// now start writting
while(fwd_bit_sz-- > 0) { //prepare next bit modulation
@@ -1589,9 +1589,9 @@ void SendForward(uint8_t fwd_bit_count) {
else {
//These timings work for 4469/4269/4305 (with the 55*8 above)
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
- WaitUS(23*8); //16-4 cycles off (8us each) //23 //one reader goes as high as 25 here
+ WaitUS(23*8); //23 cycles off (8us each)
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
- WaitUS(16*8); //16 cycles on (8us each) //9 // another reader goes to 17 here
+ WaitUS(18*8); //18 cycles on (8us each)
}
}
}
--
2.39.5