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platforms/crosslink_nx_evn: allow use of UARTBone #516

Merged
merged 1 commit into from
Aug 8, 2023
Merged

platforms/crosslink_nx_evn: allow use of UARTBone #516

merged 1 commit into from
Aug 8, 2023

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josuah
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@josuah josuah commented Aug 4, 2023

This goes along a small resistor jumper modification and firmware flashing like it is for the ECP5 board. A warning message is added as the default serial might be affected (--serial serial by default). The FTDI modification software used for the ECP5 seems to be requried and matching.

litex@lap1:$ targets/lattice_crosslink_nx_evn.py --csr-csv=csr.csv --toolchain=oxide --uart-name=crossover+uartbone --build --load
[...build logs with the extra message and 2s of wait time (sorry! open to suggestions)...]
litex@lap1:$

litex@lap1:$ litex_server --uart --uart-port /dev/ttyUSB0
[CommUART] port: /dev/ttyUSB0 / baudrate: 115200 / tcp port: 1234
Connected with 127.0.0.1:41364
Disconnect
Connected with 127.0.0.1:41366
Disconnect
Connected with 127.0.0.1:41382
Disconnect
Connected with 127.0.0.1:41384
Disconnect
Connected with 127.0.0.1:41394
Disconnect

litex@lap1:$ litex_cli --regs
0xf0000000 : 0x00000000 ctrl_reset
0xf0000004 : 0x12345678 ctrl_scratch
0xf0000008 : 0x00000000 ctrl_bus_errors
0xf0001000 : 0x00000000 leds_out
0xf0001800 : 0x00000000 timer0_load
0xf0001804 : 0x00000000 timer0_reload
0xf0001808 : 0x00000000 timer0_en
0xf000180c : 0x00000000 timer0_update_value
0xf0001810 : 0x00000000 timer0_value
0xf0001814 : 0x00000001 timer0_ev_status
0xf0001818 : 0x00000001 timer0_ev_pending
0xf000181c : 0x00000000 timer0_ev_enable
0xf0002000 : 0x00000000 uart_rxtx
0xf0002004 : 0x00000001 uart_txfull
0xf0002008 : 0x00000001 uart_rxempty
0xf000200c : 0x00000000 uart_ev_status
0xf0002010 : 0x00000000 uart_ev_pending
0xf0002014 : 0x00000003 uart_ev_enable
0xf0002018 : 0x00000000 uart_txempty
0xf000201c : 0x00000000 uart_rxfull
0xf0002020 : 0x00000020 uart_xover_rxtx
0xf0002024 : 0x00000000 uart_xover_txfull
0xf0002028 : 0x00000000 uart_xover_rxempty
0xf000202c : 0x00000003 uart_xover_ev_status
0xf0002030 : 0x00000003 uart_xover_ev_pending
0xf0002034 : 0x00000000 uart_xover_ev_enable
0xf0002038 : 0x00000001 uart_xover_txempty
0xf000203c : 0x00000001 uart_xover_rxfull
litex@lap1:$

@josuah
platforms/crosslink_nx_evn: allow use of UARTBone
5412d0e 
This goes along a small resistor jumper modification and firmware flashing like
it is for the ECP5 board. A warning message is added as the default serial might
be affected (--serial serial by default). The FTDI modification software used
for the ECP5 seems to be requried and matching.

This can be tested this way:
targets/lattice_crosslink_nx_evn.py --csr-csv=csr.csv --toolchain=oxide --programmer=openocd --uart-name crossover+uartbone --build --load
litex_server --uart --uart-port /dev/ttyUSB1
litex_cli --regs
@enjoy-digital enjoy-digital merged commit 9acc349 into litex-hub:master Aug 8, 2023
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@enjoy-digital
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Thanks @josuah!

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2 participants
@josuah @enjoy-digital