PORT B as General Port Input

[johannesweingarten]

Posted on December 12, 2005 at 07:04

PORT B as General Port Input

[johannesweingarten]

Posted on May 17, 2011 at 12:08

Hello!

I'm sorry for not answering for such a long time. but, i also fixed the problem. It was just some configuration missmatch between the MCU memory description and the PSD memory description.

Thanks!

[johannesweingarten]

Posted on May 17, 2011 at 12:08

Hello!

I am very new to the upsd33xx and I am at the moment trying out the funcionalities of the PLD. To give any logical level to Port B from the MCU as a GPIO is no problem, but to receive a value from a Port pin as GPIO does not work.

But it might be, that i make some mistake in memory addressing.

Here is my configuration:

.abl-file:

jtagsel = !_reset;

rs0 = ((address >= ^h0000) & (address <= ^h1FFF));

csiop = ((address >= ^h2000) & (address <= ^h20FF));

fs0 = ((address >= ^h0000) & (address <= ^h7FFF));

fs1 = ((page == 0) & (address >= ^h8000) & (address <= ^hFFFF));

fs2 = ((page == 1) & (address >= ^h8000) & (address <= ^hFFFF));

fs3 = ((page == 2) & (address >= ^h8000) & (address <= ^hFFFF));

fs4 = ((page == 3) & (address >= ^h8000) & (address <= ^hFFFF));

fs5 = ((page == 4) & (address >= ^h8000) & (address <= ^hFFFF));

fs6 = ((page == 5) & (address >= ^h8000) & (address <= ^hFFFF));

fs7 = ((page == 6) & (address >= ^h8000) & (address <= ^hFFFF));

csboot0 = ((address >= ^h8000) & (address <= ^h9FFF));

csboot1 = ((address >= ^hA000) & (address <= ^hBFFF));

csboot2 = ((address >= ^hC000) & (address <= ^hDFFF));

csboot3 = ((address >= ^hE000) & (address <= ^hFFFF));

Code for configuration and data transfers:

;configuration of the direction of Port B GPIO

MOV A,#00011111b

MOV DPTR,#DIRECTION_B

MOVX @DPTR,A

;OUTPUT ENABLE for the output pins

MOV A,#00011111b

MOV DPTR,#OUTENABLE_B

MOVX @DPTR,A

;send data to PORT B

MOV A,#00011111b

MOV DPTR,#DATAOUT_B

MOVX @DPTR,A

receive data from Port B

MOV DPTR,#DATAIN_B

MOVX A,@DPTR

PSD_REGISTER_CONFIGURATION:

DATAIN_A data 2000H; // PSD_REG_BASE +0x00

DATAIN_B data 2001H; // +0x01

CONTROL_A data 2002H; // +0x02

CONTROL_B data 2003H; // +0x03

DATAOUT_A data 2004H; // +0x04

DATAOUT_B data 2005H; // +0x05

DIRECTION_A data 2006H; // +0x06

DIRECTION_B data 2007H; // +0x07

DRIVE_A data 2008H; // +0x08

DRIVE_B data 2009H; // +0x09

IMC_A data 200AH; // +0x0A

IMC_B data 200BH; // +0x0B

OUTENABLE_A data 200CH; // +0x0C

OUTENABLE_B data 200DH; // +0x0D

Thanks for your help!

kind regards harryplotter4