From 62a38cc8835cc7b98a30ee3e670e6eb582ddd8cd Mon Sep 17 00:00:00 2001 From: marshmellow42 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) } } } -- 2.39.2