Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

HSMC GPIO Daughter card.

I have a question regarding the gpio-hstc card (http://www.terasic.com.tw/cgi-bin/page/archive.pl?language=english&categoryno=67&no=322&partno=1). I'd like to use this board to expand the gpio of my ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I modified it to set all HSMC bidir and outputs high. 


assign HSMC_TX_D_P = 'b11111111111111111;
assign HSMC_RX_D_P = 'b11111111111111111;
assign HSMC_TX_D_N = 'b11111111111111111;
assign HSMC_RX_D_N = 'b11111111111111111;
assign SMC_CLKIN0 = 1;
assign HSMC_CLKOUT_N1 = 1;
assign HSMC_CLKOUT_N2 = 1;
assign HSMC_CLKOUT_P1 = 1;
assign HSMC_CLKOUT_P2 = 1;
assign HSMC_CLKOUT0 = 1;

And all gave about 2.44V.

When making them all 0 among others, pin

RX_D_N(16) gave 1.72V and

RX_D_N(15) gave 2.11V.

Later today I will try this with my project and post the results