Author |
Message |
Topic: Problems with ROM and LCD font |
nickdc
Replies: 6
Views: 15951
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Forum: General CCS C Discussion Posted: Mon Jun 29, 2020 5:10 am Subject: Problems with ROM and LCD font |
Hello Ttelmah,
Thanks for your clues.
I changed 'const' to 'rom' and removed the memcpy.
If you are in the vicinity of Westvleteren, we will offer you a Trappist beer |
Topic: Problems with ROM and LCD font |
nickdc
Replies: 6
Views: 15951
|
Forum: General CCS C Discussion Posted: Mon Jun 29, 2020 2:56 am Subject: Problems with ROM and LCD font |
I have a problem with printing certain characters to my LCD, after I added a symbol to my font set.
I use CCS compiler 5.078, PIC18F57K42, I use opt compress because else it doesn't fit into memory ... |
Topic: PIC16F1828 WDT and I2C write behaviour |
nickdc
Replies: 6
Views: 15753
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Forum: General CCS C Discussion Posted: Mon Dec 02, 2019 11:49 am Subject: PIC16F1828 WDT and I2C write behaviour |
Thanks temtronic and PCM programmer for looking into this.
Sorry, I looked at a wrong pair of resistors.
I also see a pair of 4k7 resistors in my schematic connected to 5V.
The MCP4725 is an IC o ... |
Topic: PIC16F1828 WDT and I2C write behaviour |
nickdc
Replies: 6
Views: 15753
|
Forum: General CCS C Discussion Posted: Mon Dec 02, 2019 10:41 am Subject: PIC16F1828 WDT and I2C write behaviour |
The I2C device is the MCP4725 DAC.
Connected to the SDA and SCL are two 22 ohm resistors. Vdd is 5 V. |
Topic: PIC16F1828 WDT and I2C write behaviour |
nickdc
Replies: 6
Views: 15753
|
Forum: General CCS C Discussion Posted: Mon Dec 02, 2019 9:55 am Subject: PIC16F1828 WDT and I2C write behaviour |
Hi,
My device is a PIC16F1828 and I use compiler version 5.076.
When I block PIC and then send something using I2C, the processor will freeze, causing another watchdog timeout.
These are my set ... |
Topic: Receiving a string from terminal |
nickdc
Replies: 11
Views: 20316
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Forum: General CCS C Discussion Posted: Mon Nov 18, 2019 1:51 pm Subject: Receiving a string from terminal |
Sorry, I made a mistake in my first post. I meant sending from the PC to the PIC, not from the PIC to the PC. I had overlooked the "I".
For example, writing a string via broadcast command i ... |
Topic: Receiving a string from terminal |
nickdc
Replies: 11
Views: 20316
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Forum: General CCS C Discussion Posted: Mon Nov 18, 2019 12:30 pm Subject: Receiving a string from terminal |
I want to send a string from the PC to the UART of the PIC, via the terminal.
I searched the forums and ex_sisr.c in the examples folder was recommended as good start. I have searched the forums for ... |
Topic: Reading MCP4725, rotating and concatenating two bytes |
nickdc
Replies: 10
Views: 18349
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Forum: General CCS C Discussion Posted: Mon Nov 18, 2019 2:13 am Subject: Reading MCP4725, rotating and concatenating two bytes |
This is my (shortened) program:
#include <16F1828.h>
#fuses HS,NOWDT,PROTECT,NOLVP,BROWNOUT
#use delay(clock=18.432M, CRYSTAL) // xtal-frequency
#use rs232(STREAM = UART_Displ ... |
Topic: Reading MCP4725, rotating and concatenating two bytes |
nickdc
Replies: 10
Views: 18349
|
Forum: General CCS C Discussion Posted: Mon Nov 18, 2019 1:44 am Subject: Reading MCP4725, rotating and concatenating two bytes |
When I try the optimized method, I get for 4095 (decimal) the following:
upper8bits: 00ff
lower8bits: 00f0
output: 00ff
When I try:
output = ((int16)upper8bits<<4) | ... |
Topic: Reading MCP4725, rotating and concatenating two bytes |
nickdc
Replies: 10
Views: 18349
|
Forum: General CCS C Discussion Posted: Sat Nov 16, 2019 12:59 pm Subject: Reading MCP4725, rotating and concatenating two bytes |
It is the MCP4725. I made a typo, sorry.
I will try the suggesting when I have access to my hardware. |
Topic: Reading MCP4725, rotating and concatenating two bytes |
nickdc
Replies: 10
Views: 18349
|
Forum: General CCS C Discussion Posted: Sat Nov 16, 2019 3:40 am Subject: Reading MCP4725, rotating and concatenating two bytes |
Hi,
My compiler version is 5.076 and I'm working on a PIC16F1828.
I'm converting the following code from XC8 to CCS.
I want to read the data bits of a MCP4725 DAC device.
I want to convert the ... |
Topic: Determining WDT timeout period |
nickdc
Replies: 4
Views: 14430
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Forum: General CCS C Discussion Posted: Thu Dec 06, 2018 1:35 pm Subject: Determining WDT timeout period |
Thanks for your replies. I'm always very impressed by the level of knowledge on this forum. As a programmer that recently joined the workforce, it makes me wonder how one assimilates that kind of faci ... |
Topic: Determining WDT timeout period |
nickdc
Replies: 4
Views: 14430
|
Forum: General CCS C Discussion Posted: Thu Dec 06, 2018 4:05 am Subject: Determining WDT timeout period |
I'm using the CCS compiler v5.081 with the PIC1857K42.
I use the following instruction:
setup_wdt(WDT_ON);
How can I determine what the time out period with this specific instructio ... |
Topic: Casting void pointer: a numeric expression must appear here |
nickdc
Replies: 3
Views: 12959
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Forum: General CCS C Discussion Posted: Mon Nov 19, 2018 12:03 pm Subject: Casting void pointer: a numeric expression must appear here |
Thanks. The #case was indeed the cause of the problem. |
Topic: Casting void pointer: a numeric expression must appear here |
nickdc
Replies: 3
Views: 12959
|
Forum: General CCS C Discussion Posted: Sat Nov 17, 2018 6:53 am Subject: Casting void pointer: a numeric expression must appear here |
I use a PIC18F47K42 and the CCS compiler v5.081. I'm in the process of porting the following code from XC8 to CCS.
https://www.studentcompanion.co.za/interfacing-sd-card-with-pic-microcontroller-x ... |
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