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rework iso14443b device functions including FPGA I/Q signal transfer (#669)

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* rework iso14443b device functions
* hf_read_rx_xcorr.v: transfer i/q pair in one 16bit frame
* hi_read_tx.v: invert ssp_dout. When nothing is transferred (ssp_dout=0), this results in no modulation (carrier on)
* adjust arm sources accordingly
* iso14443b.c: switch off carrier after hf 14b sri512read and hf 14b srix4kread
* iso14443b.c: fix DMA circular buffer handling
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pwpiwi 2018-09-16 00:53:28 +02:00 • committed by GitHub
commit 6a5d4e17f4
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14 changed files with 212 additions and 321 deletions
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armsrc/fpgaloader.h
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@ -19,7 +19,7 @@
void FpgaSendCommand(uint16_t cmd, uint16_t v);
void FpgaWriteConfWord(uint8_t v);
void FpgaDownloadAndGo(int bitstream_version);
void FpgaSetupSsc(void);
void FpgaSetupSsc(uint8_t mode);
void SetupSpi(int mode);
bool FpgaSetupSscDma(uint8_t *buf, int len);
void Fpga_print_status();