Cannot visualize value written on EEPROM (PIC16F)
Hello!
I wrote a simple code to test EEPROM module on PIC16F627A, but is no possible to visualize the value written on referred address.
Both memory writting and interruption worked on phisical chip. The configuration step and value writting is shown below:
bank_0
movlw B'00000111'
movwf CMCON
bank_1
movlw B'00000000'
movwf TRISB
movlw B'11111111'
movwf TRISA
movlw B'10000000'
movwf INTCON
movlw B'11011111'
movwf OPTION_REG
bsf INTCON,PEIE
bsf PIE1,EEIE
movlw mem_addr
movwf EEADR
movlw D'009';Value to be written on EEPROM
movwf EEDATA
bsf EECON1,WREN
;=========REQUIRED SEQUENCE====================
BCF INTCON, GIE ;Disable INTs.
MOVLW 0X55 ;
MOVWF EECON2 ;Write 55h
MOVLW 0XAA ;
MOVWF EECON2 ;Write AAh
BSF EECON1,WR ;Set WR bit
BSF INTCON, GIE ;Enable INTs.
;============================================
bank_0
Hi, thanks for reporting.
The problem is in a configuration file, you can fix it doing this:
Edit file: SimulIDE/data/PIC/p16F627/p16F627_perif.xml
Add this at line 58:
<rom name="ROM" configregsA="EECON1" configregsB="EECON2"
dataregs="EEDATA"
addressreg="EEADR"
interrupt="EEPR" />It should look like this:
<wdt name="WDT" configregsA="OPTION"
prescalers="1,2,4,8,16,32,64,128"/>
<rom name="ROM" configregsA="EECON1" configregsB="EECON2"
dataregs="EEDATA"
addressreg="EEADR"
interrupt="EEPR" />
<configwords name="cfgWord" type="01">
<word name="COINFIG1" address="0x2007" value="0xFF" />
</configwords>
</parts>If it doesn't work for you or there is any other problem please let me know.
Quote from arcachofo on November 4, 2024, 1:52 pmIf it doesn't work for you or there is any other problem please let me know.
Hello, arcachofo!
The xml changes worked fine for EEPROM writting, but it still heaving issues with EEPROM writting interruption. I took a look on p16F627_int.xml, but is seems to be normal for me.
Hi and sorry for the delay.
EEPROM interrupt was already fixed:
https://simulide.com/p/forum/topic/pic-eeprom-interrupt/
You can try using the last tester build for 1.1.0:
https://simulide.com/p/testers/
Quote from arcachofo on November 8, 2024, 1:31 pmHi and sorry for the delay.
EEPROM interrupt was already fixed:
https://simulide.com/p/forum/topic/pic-eeprom-interrupt/You can try using the last tester build for 1.1.0:
https://simulide.com/p/testers/
Thanks for help, arcachofo!