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em4x05 getting better

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got the read/dump cmds working pretty well
some tweaking still left to do.
This commit is contained in:
marshmellow42 2017-02-17 01:33:27 -05:00
commit e39a92bb1d
3 changed files with 169 additions and 175 deletions
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10
armsrc/lfops.c
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@ -1573,12 +1573,12 @@ void SendForward(uint8_t fwd_bit_count) {
// Set up FPGA, 125kHz
LFSetupFPGAForADC(95, true);
// force 1st mod pulse (start gap must be longer for 4305)
fwd_bit_sz--; //prepare next bit modulation
fwd_write_ptr++;
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
SpinDelayUs(56*8); //55 cycles off (8us each)for 4305
SpinDelayUs(55*8); //55 cycles off (8us each)for 4305
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);//field on
SpinDelayUs(16*8); //16 cycles on (8us each)
@ -1628,7 +1628,7 @@ void EM4xReadWord(uint8_t Address, uint32_t Pwd, uint8_t PwdMode) {
SendForward(fwd_bit_count);
// Now do the acquisition
DoAcquisition_config(TRUE);
DoAcquisition_default(30,TRUE);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
LED_A_OFF();
@ -1656,10 +1656,10 @@ void EM4xWriteWord(uint32_t flag, uint32_t Data, uint32_t Pwd) {
SendForward(fwd_bit_count);
//Wait for write to complete
SpinDelay(20);
//SpinDelay(5);
//Capture response if one exists
DoAcquisition_config(TRUE);
DoAcquisition_default(30, TRUE);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
LED_A_OFF();