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[/] [uart_fpga_slow_control/] [trunk/] [documents/] [set_baudrate.txt] - Blame information for rev 13

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How to set the baud rate:
 
the code comes preprogrammed at 921600 bps (1 Mbps)
 
to change the speed edit the content of the WRITE_DIVLTC register
line 359 of the ab_uart_lbus_slave.vhd
 
v_data_init         <= "00000010";   -- DEC 2 Baudrate = 921600 bps @ 29,4912 MHz
 
other popular baudrates:
 
v_data_init         <= "00000100";   -- DEC 4 Baudrate = 230400 bps @ 29,4912 MHz
v_data_init         <= "00001000";   -- DEC 8 Baudrate = 115200 bps @ 29,4912 MHz
....
 
------------------------------------------------
 
Other useful UART default parameters:
 
8 bit
no parity
1 stop bit
no hardeare flow control
no software flow control
 
 

Line No.	Rev	Author	Line
1	13	aborga
2	6	aborga	`How to set the baud rate:`
3
4			`the code comes preprogrammed at 921600 bps (1 Mbps)`
5
6			`to change the speed edit the content of the WRITE_DIVLTC register`
7			`line 359 of the ab_uart_lbus_slave.vhd`
8
9			`v_data_init <= "00000010"; -- DEC 2 Baudrate = 921600 bps @ 29,4912 MHz`
10
11	10	aborga	`other popular baudrates:`
12	6	aborga
13	10	aborga	`v_data_init <= "00000100"; -- DEC 4 Baudrate = 230400 bps @ 29,4912 MHz`
14			`v_data_init <= "00001000"; -- DEC 8 Baudrate = 115200 bps @ 29,4912 MHz`
15			`....`
16	6	aborga
17	13	aborga	`------------------------------------------------`
18	6	aborga
19	13	aborga	`Other useful UART default parameters:`
20	10	aborga
21	13	aborga	`8 bit`
22			`no parity`
23			`1 stop bit`
24			`no hardeare flow control`
25			`no software flow control`
26
27

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[/] [uart_fpga_slow_control/] [trunk/] [documents/] [set_baudrate.txt] - Blame information for rev 13