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Recent Forum Posts

Re: My "Library" for ST7920 Graphical displays, works fine, but...

Well, I don't see anything to be slow at 8mhz, except I2C :D
Had no time today, will measure I2C frequency tomorrow and post back....
CuriousOne Yesterday, 20:22

Re: Adding and reading byte variable from the bit array?

The issue is that these boundaries should be changeable, since different chars will have different pixel width.
There are two ways of doing this - all capitals have same width and all non-capital...
CuriousOne Yesterday, 20:10

Re: Adding and reading byte variable from the bit array?

Have you tried something like this?

Myword2.5 = Mybyte1.2 'move bit 2 of Mybyte1 to bit 5 Myword2
Myword2.6 = Mybyte1.3
Myword2.7 = Mybyte1.4
Myword2.8 = Mybyte1.5
mark_s Yesterday, 19:34

Re: Adding and reading byte variable from the bit array?

The best I can think of is shifting & bit masks. If you want to use bits 2 through 5, create a generic temporary variable to put the interim result. Right shift it to put the 1st needed bit at the...
mpgmike Yesterday, 15:46

Re: My "Library" for ST7920 Graphical displays, works fine, but...

If you're running at 8MHz then no wonder everything is slow.

32MHz (or 64MHz for something like an 18F26K22) would definitely be faster, way faster.
The I2C won't necessarily be a lot faster on...
tumbleweed Yesterday, 11:58

Adding and reading byte variable from the bit array?

Hello.
I'm upgrading my ST7920 "library", so letters can have variable width, for better visual appearance.
For this purpose, I plan to have single, screen-wide bit array, in which I will write the...
CuriousOne Yesterday, 07:26

Re: My "Library" for ST7920 Graphical displays, works fine, but...

Not yet, but will do. Measure what, I2C clock frequency?
Tried modifying code in a way, that only that part of screen is redrawn, which is being updated. For some uses it does helps, but not always.
CuriousOne Yesterday, 05:32

Re: My "Library" for ST7920 Graphical displays, works fine, but...

Have you measure what clock speed you're getting?
Standard "high speed" I2C clock is 400kHz, maximum clock speed of a Microchip 24C256 when run at >2.5V is 1MHz.
SPI-interface flash chips usually...
HenrikOlsson Yesterday, 05:29

Re: My "Library" for ST7920 Graphical displays, works fine, but...

Good.
So I have to "learn" to use SPI eeprom 1st, and then use MSSP :)
By the way, if I leave current setup as is - using I2C, but use PIC running at say 32mhz (instead of current 8mhz), will this...
CuriousOne Yesterday, 04:43

Re: My "Library" for ST7920 Graphical displays, works fine, but...

No.
SSPBUF is the Synchronous Serial Port Receive Buffer/Transmit Register. It's the name of register to/from which you write/read whatever gets shifted out.
HenrikOlsson - 17th May 2022, 21:28

PICBASIC PRO™ Compiler 3.0 PBP is a BASIC programming language for Microchip's PIC microcontrollers.

Version 3 is a major evolution of this popular product, making it even more capable, stable, and reliable. All the years of development culminate here, with many new capabilities and improvements. Come see why thousands of engineers, educators and hobbyists have depended on PBP for more than a decade.

Supports more than 500 microcontrollers.
Newly revised 300-page manual.
MPLABX compatible

Visit our secure online shop to order

Software activation keys are delivered electronically after purchase.
15 Day Trial Before Activation Key is Required

If installed without an activation code, the software will be fully functional for 15 days.
Read about Product Activation

PBP 3.0 Gold Edition

Supports more than 500 devices.

PBP 3.0 Silver Edition

Supports Mid-Range devices.

Number of computer installations allowed 3
(May be uninstalled and moved. License is for single user.)

Maximum supported clock frequency 64Mhz

Maximum supported clock frequency 20Mhz

Commercial License

What is PBP?

PBP is a BASIC programming language for Microchip's PIC microcontrollers.

It has evolved over the span of 15 years, making it the industry standard in its field. It has become a professional-level development tool for embedded programmers, though it retains the easy-to-learn syntax that makes it popular among experimenters and educators worldwide.
...

Compare Editions

PBP3 is available in THREE editions, Chose the right one for YOU!. From Experimenter - enough for the hobbyist through Silver & GOLD - strong enough for a Pro. Including commercial licenses and annual update packages.

...

Features

PICBASIC PRO™ Compiler 3.0

Familiar BASIC syntax
- IF (condition) THEN / ELSE / ELSEIF /ENDIF
- SELECT CASE
- FOR… NEXT
- DO WHILE/UNTIL

...

MicroCode Studio Plus 5.0

MicroCode Studio Plus 5.0 (compatible with PBP 3.0 or later)
The main editor provides full syntax highliMicroCode Studio Plus is a powerful, visual Integrated Development Environment (IDE) with In Circuit Debugging (ICD) capability designed specifically for PICBASIC PRO™ Compilerghting of your code with context sensitive keyword help and syntax hints. The code explorer allows you to automatically jump to include files, defines, constants, variables, aliases and modifiers, symbols and labels, that are contained within your source code. Full cut, copy, paste and undo is provided, together with search and replace features.
...

Supported Devices

...

Product Activation

When installed PBP3 will operate in trial mode for 15 days, we recommend that you TRY PBP3 BEFORE you buy PBP3. Be sure that you are happy with the product and the facilities it offers

After purchasing your PBP3 license, the product may be activated by entering the activation key as prompted by the application, this process should be carried out whilst your host machine has access to the internet. Activation requires that the machine can contact the melabs activation service.
...

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