diff options
Diffstat (limited to 'libloragw/src')
| -rw-r--r-- | libloragw/src/loragw_fpga.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/libloragw/src/loragw_fpga.c b/libloragw/src/loragw_fpga.c index 465f43e..40b0b2e 100644 --- a/libloragw/src/loragw_fpga.c +++ b/libloragw/src/loragw_fpga.c @@ -164,11 +164,14 @@ int lgw_fpga_configure(uint32_t tx_notch_freq) { return LGW_REG_ERROR; } - /* Required for Semtech AP2 reference design */ - x = lgw_fpga_reg_w(LGW_FPGA_CTRL_INVERT_IQ, 1); - if (x != LGW_REG_SUCCESS) { - DEBUG_MSG("ERROR: Failed to configure FPGA polarity\n"); - return LGW_REG_ERROR; + + if (read_fpga_version() > 28) { + /* Required for Semtech AP2 reference design and AP1.5 > v28 */ + x = lgw_fpga_reg_w(LGW_FPGA_CTRL_INVERT_IQ, 1); + if (x != LGW_REG_SUCCESS) { + DEBUG_MSG("ERROR: Failed to configure FPGA polarity\n"); + return LGW_REG_ERROR; + } } /* Configure TX notch filter */ |