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Lora-net / lora_gateway

Driver/HAL to build a gateway using a concentrator board based on Semtech SX1301 multi-channel modem and SX1257/SX1255 RF transceivers.
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FPGA not start! #32

Closed zhoubx123 closed 7 years ago

zhoubx123 commented 7 years ago

I use raspberry pi and SX1301AP2-PCB_E336, I have use raspberry pi pins MOSI , MISO , SCLK , CE0 and CE1 . CE0 choice SX1301 , and CE1 choice FPGA. When I start getway and module，getway can receive Join request , but mudule cannot receive Join Accept. If I connect SPI error , or need updata SPI drive ?

mcoracin commented 7 years ago

Hello, Which FPGA image have you programmed? I don't understand why you say "and CE1 choice FPGA"?

To plug a SX1301AP2-PCB_E336 to a raspberry pi, you just have to connect CE0 to the pin 1 of the GW board. Before testing with a module, have you checked that your GW is functionnal (SPI OK, packet forwarder starting with no error etc...?)

You can use the util_spi_stress to check the SPI connexion.

zhoubx123 commented 7 years ago

Thank you very much. I must load SX1301_FPGA_125K_NOTCH_LBT_bitmap_v27.bin before use FPGA，Or the gateway is automatically loaded at boot？ Is after load FPGA image, and then connect a raspberry pi MOSI , MISO , SCLK , CE0. just do like this is OK？

mcoracin commented 7 years ago

Hello, You must program the FPGA before. I do it using a JTAG and Lattice Diamond Programmer software. Once it is programmed, as you say, you connect your raspberry pi as described here: https://github.com/Lora-net/packet_forwarder/wiki/Use-with-Raspberry-Pi

zhoubx123 commented 7 years ago

FPGA is broken, can I use ICE40HX1KVQ100 instead , I just have this.