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After testing and verification its found that the SHALLOW MODULATION in HF is not working well in RDV4. Swapping from PWR_OE4 to PWR_OE1 makes it much better. Thanks to @d18c7db for solution and @gentlekiwi for testing and never giving up on finding the bug

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iceman1001 2023-08-28 12:00:44 +02:00
commit 114dda1582
11 changed files with 24 additions and 2 deletions
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armsrc/iso15693.c
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@ -294,7 +294,12 @@ void CodeIso15693AsTag(const uint8_t *cmd, size_t len) {
// Transmit the command (to the tag) that was placed in cmd[].
void TransmitTo15693Tag(const uint8_t *cmd, int len, uint32_t *start_time, bool shallow_mod) {
#ifdef RDV4
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | (shallow_mod ? FPGA_HF_READER_MODE_SEND_SHALLOW_MOD_RDV4 : FPGA_HF_READER_MODE_SEND_FULL_MOD));
#else
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER | (shallow_mod ? FPGA_HF_READER_MODE_SEND_SHALLOW_MOD : FPGA_HF_READER_MODE_SEND_FULL_MOD));
#endif
if (*start_time < DELAY_ARM_TO_TAG) {
*start_time = DELAY_ARM_TO_TAG;