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change: re-added status LEDs

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- LED_A: FPGA and 13.56MHz carrier is active
- LED_B: Reading Byte
- LED_C: Writing Byte
This commit is contained in:
Andreas Dröscher 2018-08-08 00:11:14 +02:00
parent e052fbc433
commit ff5b046903
1 changed files with 6 additions and 0 deletions
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6
armsrc/legicrf.c
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@ -97,6 +97,7 @@ static inline int32_t sample_power() {
// has a delay loop that aligns rx_bit calls to the TAG tx timeslots.
static inline bool rx_bit() {
static int32_t p[5];
for(size_t i = 0; i<5; ++i) {
p[i] = sample_power();
}
@ -254,6 +255,7 @@ static void init_reader(bool clear_mem) {
| FPGA_HF_READER_RX_XCORR_848_KHZ
| FPGA_HF_READER_RX_XCORR_QUARTER);
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
LED_A_ON();
// configure SSC with defaults
FpgaSetupSsc();
@ -338,10 +340,12 @@ static int16_t read_byte(uint16_t index, uint8_t cmd_sz) {
uint16_t cmd = (index << 1) | LEGIC_READ;
// read one byte
LED_B_ON();
legic_prng_forward(2);
tx_frame(cmd, cmd_sz);
legic_prng_forward(2);
uint32_t frame = rx_frame(12);
LED_B_OFF();
// split frame into data and crc
uint8_t byte = BYTEx(frame, 0);
@ -368,9 +372,11 @@ bool write_byte(uint16_t index, uint8_t byte, uint8_t addr_sz) {
cmd |= (crc & 0xF) << (addr_sz + 1 + 8); // and crc
// send write command
LED_C_ON();
legic_prng_forward(2);
tx_frame(cmd, addr_sz + 1 + 8 + 4); // cmd_sz = addr_sz + cmd + data + crc
legic_prng_forward(3);
LED_C_OFF();
// wait for ack
return rx_ack();