Posted on May 17, 2011 at 12:08Hello!
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
