From 817611f5651d4e99e13f091baf098d8385c69cb8 Mon Sep 17 00:00:00 2001
From: marshmellow42 <marshmellow42@users.noreply.github.com>
Date: Thu, 11 Jul 2019 14:31:51 -0400
Subject: [PATCH] update em4x05 timing (#846)
See @mwalker33 issue #838
---
armsrc/lfops.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index c9947d97..12f9de08 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -1907,7 +1907,7 @@ void SendForward(uint8_t fwd_bit_count) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
WaitUS(18*8); //18 cycles on (8us each)
- // now start writting
+ // now start writting - each bit should be 32*8 total length
while(fwd_bit_sz-- > 0) { //prepare next bit modulation
if(((*fwd_write_ptr++) & 1) == 1)
WaitUS(32*8); //32 cycles at 125Khz (8us each)
@@ -1916,7 +1916,7 @@ void SendForward(uint8_t fwd_bit_count) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
WaitUS(23*8); //23 cycles off (8us each)
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
- WaitUS(18*8); //18 cycles on (8us each)
+ WaitUS((32-23)*8); //remaining cycles on (8us each)
}
}
}
--
2.39.5