Author |
Message |
Topic: INT_EXT external interrupt on RB0 not working |
kein
Replies: 1
Views: 11559
|
Forum: General CCS C Discussion Posted: Tue Feb 17, 2015 12:25 am Subject: INT_EXT external interrupt on RB0 not working |
Hi Gents,
I'm having issues with my external interrupt. I have set up PIN_B0 as a digital input input and PORTE, PIN1 is output. I have also set up INTCON BIT 7, BIT4 and BIT1 as shown on the code be ... |
Topic: What is causing Stack underflow on inline assembly |
kein
Replies: 8
Views: 14180
|
Forum: General CCS C Discussion Posted: Fri Feb 06, 2015 7:24 pm Subject: What is causing Stack underflow on inline assembly |
Guys, I solved it. For those who may be interested, here is the solution.
unsigned char ReadFromEEPROM(int8 address)
{
unsigned char temp;
#asm
movf address, w ;w ... |
Topic: What is causing Stack underflow on inline assembly |
kein
Replies: 8
Views: 14180
|
Forum: General CCS C Discussion Posted: Fri Feb 06, 2015 6:38 am Subject: What is causing Stack underflow on inline assembly |
Thanks guys for your support. On the question of why assembly? My options are very limited as it's a requirement of my school assignment.
Having said that, I'm having problem with MPLABX simulator re ... |
Topic: What is causing Stack underflow on inline assembly |
kein
Replies: 8
Views: 14180
|
Forum: General CCS C Discussion Posted: Thu Feb 05, 2015 11:49 pm Subject: What is causing Stack underflow on inline assembly |
Thank you so much. I guess return causes stack issues - program returns to random location. |
Topic: What is causing Stack underflow on inline assembly |
kein
Replies: 8
Views: 14180
|
Forum: General CCS C Discussion Posted: Thu Feb 05, 2015 9:16 am Subject: What is causing Stack underflow on inline assembly |
Gents,
I'm having stack underflow issue with my code. I've written an inline assembly code as shown below. For some reasons, it generates "stack underflow executing return instruction". Whe ... |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Wed Feb 06, 2013 7:34 pm Subject: 8x8 dot Matrix not displaying proper message |
Gents,
Sorry, I have been out of the scene recovering. I can't thank you enough for your comments, direction and help. I will put them into action between today and tomorrow and will post a response. ... |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sun Feb 03, 2013 11:55 pm Subject: 8x8 dot Matrix not displaying proper message |
You're absolutely, Mike. My apologies.
That said, I finally got something happening with the code below. However, there are still issues with characters being displayed as some dots are found to be m ... |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sun Feb 03, 2013 9:18 am Subject: 8x8 dot Matrix not displaying proper message |
Hi temtronic,
I tried the code but it didn't work either. Can anyone post a simple code that I may test?
The situation is very frustrating and my final year project is now in limbo. |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sun Feb 03, 2013 2:53 am Subject: 8x8 dot Matrix not displaying proper message |
Gents,
You are right PCM Programmer, the byte 0b01111110 was not part of the origin value in the table. It is a number I chose to send to the shift to see what would be displayed. The 8x8 Dot matrix ... |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sat Feb 02, 2013 11:49 pm Subject: 8x8 dot Matrix not displaying proper message |
Hello PCM Programmer,
Thanks for your reply. I did exactly as you said. There is something strange about my 8x8 display matrix. When I send a byte say 0b01111110, the dot matrix displays something li ... |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sat Feb 02, 2013 8:18 pm Subject: 8x8 dot Matrix not displaying proper message |
Gents,
Many thanks PCM Programmer for your help. Here is the link of my schematic as requested.
http://imageshack.us/photo/my-images/443/schematic1.png/ |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sat Feb 02, 2013 6:33 pm Subject: 8x8 dot Matrix not displaying proper message |
Thanks Gents for your response. I'm having trouble posting the schematic as I cannot see any import button and the (ALT+P) isn't working for me. How do I post a schematic onto the forum.?
Thanks. |
Topic: 8x8 dot Matrix not displaying proper message |
kein
Replies: 20
Views: 30593
|
Forum: General CCS C Discussion Posted: Sat Feb 02, 2013 9:58 am Subject: 8x8 dot Matrix not displaying proper message |
Gentlemen,
I'm having problem displaying message on my 8x8 dot matrix display. I've modified a small c code rewriting it in C using CCS C compiler. In as far as my hardware is concern, I'm using a pi ... |
Topic: PORTD problem |
kein
Replies: 4
Views: 5881
|
Forum: General CCS C Discussion Posted: Fri Jan 11, 2013 8:17 am Subject: What Am I doing wrong |
Gents,
I've declared const unsigned int16 array to store binary switch positions as below. The problem is, the compiler gives errors when I compile the code.
i.e. ***Error 103" main.c" L ... |
Topic: PORTD problem |
kein
Replies: 4
Views: 5881
|
Forum: General CCS C Discussion Posted: Fri Jan 11, 2013 12:33 am Subject: PORTD problem |
Thank you so much PCM Programmer.
Regards |
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