Trion T20 BGA256 Development Board

Enter commands in the following sequence:

Table 1. Command Sequence

Command Sequence	Action	Address (hex)	Operator	LED Data (hex)	Terminal Returns	LEDs Display
1	Write data 0x5555 to address 0x0000	0x0000	!	0x5555	–	0101
2	Write data 0xaaaa to address 0x0001	0x0001	!	0xaaaa	–	1010
3	Write data 0x6666 to address 0x0002	0x0002	!	0x6666	–	0110
4	Read previously written data from address 0x0000	0x0000	@	–	0x5555	0101
5	Read previously written data from address 0x0001	0x0001	@	–	0xaaaa	1010
6	Read previously written data from address 0x0002	0x0002	@	–	0x6666	0110

The example design supports address range 0x0000 - 0x000F. You can modify the user_register.v file to increase the address range.

The following table correlates the UART ports, FPGA pin assignments, and board labels.

Table 2. Trion® T20 BGA256 Development Board Pin Assignments

UART Design Port	FPGA Pin Assignment	Label
led[0]	GPIOR_104	D3
led[1]	GPIOR_105	D4
led[2]	GPIOR_117	D5
led[3]	GPIOR_118	D6
rst_n	GPIOL_04	SW5
baud_rate[0]	GPIOR_130	SW3.3
baud_rate[1]	GPIOR_129	SW3.2
baud_rate[2]	GPIOR_128	SW3.1
rx_i	GPIOL_28	H4 - 28 1
tx_o	GPIOL_26	H4 – 26 1