Senior Member
Joined: 16/07/2015
Location: GermanyPosts: 120
| Posted: 02:00am 23 Aug 2017 |
hi Peter ,
i like the PiCromite so we have all in one, a finishesd PCB without any soldering and so on and its run at 1200 mhz
for some test i have decrase the clockspeed to 800 mhz .. it works well and the bitstream command does not make problems
the cpu have to be cooled above 74 degrees mmbasic will stopp elesewere
I bought a 3.5 inch display hoping it worked but it only shows half the screen you can help me ??
main parameter
Type :TFT
Interface :SPI
Touch panel control chip : XPT2046
The color index : 65536色
Backlight: LED
resolving power: 320×480 (Pixel)
Size proportion: 8:5
power waste: TBD
Back facet current: TBD
Working temperature (c): TBD
Interface definition
Pin number identification describe
1、17 3.3V ------ Power supply positive (3.3V power input)
2、4 5V -- ---- Power supply positive (5V power input)
3、5、7、8、10、12、13、15、16 NC --- --- NC
6、9、14、20、25 GND ------- Power GND
11 TP_IRQ ------ Touch panel interrupt, detect the touch panel is pressed down to a low level
18 LCD_RS ------- Instruction / data register selection
19 LCD_SI / TP_SI ------ LCD display / touch panel SPI data input
21 TP_SO ----- SPI data output of touch panel
22 RST ----- reset
23 LCD_SCK / TP_SCK LCD -------- SPI clock signal for display / touch panel
24 LCD_CS -------- LCD chip select signal, low level LCD
26 TP_CS --------- The touch panel chip select signal, low level selection of touch panel
Specifications
LCD Type TFT
LCD Interface SPI
Touch Screen Type Resistive
Touch Screen Controller XPT2046
Colors 65536
Backlight LED
Resolution 320*480 (Pixel)
Aspect Ratio 02:03
Power Consumption TBD
Backlight Current TBD
Operating Temp. (℃) TBD
Interface
PIN NO. SYMBOL DESCRIPTION
1, 17 3.3V Power positive (3.3V power input)
2, 4 5V Power positive (5V power input)
3, 5, 7, 8, 10, 12, 13, 15, 16 NC NC
6, 9, 14, 20, 25 GND Ground
11 TP_IRQ Touch Panel interrupt, low level while the Touch Panel detects touching
18 LCD_RS Instruction/Data Register selection
19 LCD_SI / TP_SI SPI data input of LCD/Touch Panel
21 TP_SO SPI data output of Touch Panel
22 RST Reset
23 LCD_SCK / TP_SCK SPI clock of LCD/Touch Panel
24 LCD_CS LCD chip selection, low active
26 TP_CS Touch Panel chip selection, low active
Type :TFT
Interface :SPI
Touch panel control chip : XPT2046
The color index : 65536色
Backlight: LED
resolving power: 320×480 (Pixel)
Size proportion: 8:5
power waste: TBD
Back facet current: TBD
Working temperature (c): TBD
Interface definition
Pin number identification describe
1、17 3.3V ------ Power supply positive (3.3V power input)
2、4 5V -- ---- Power supply positive (5V power input)
3、5、7、8、10、12、13、15、16 NC --- --- NC
6、9、14、20、25 GND ------- Power GND
11 TP_IRQ ------ Touch panel interrupt, detect the touch panel is pressed down to a low level
18 LCD_RS ------- Instruction / data register selection
19 LCD_SI / TP_SI ------ LCD display / touch panel SPI data input
21 TP_SO ----- SPI data output of touch panel
22 RST ----- reset
23 LCD_SCK / TP_SCK LCD -------- SPI clock signal for display / touch panel
24 LCD_CS -------- LCD chip select signal, low level LCD
26 TP_CS --------- The touch panel chip select signal, low level selection of touch panel
Specifications
LCD Type TFT
LCD Interface SPI
Touch Screen Type Resistive
Touch Screen Controller XPT2046
Colors 65536
Backlight LED
Resolution 320*480 (Pixel)
Aspect Ratio 02:03
Power Consumption TBD
Backlight Current TBD
Operating Temp. (℃) TBD
Interface
PIN NO. SYMBOL DESCRIPTION
1, 17 3.3V Power positive (3.3V power input)
2, 4 5V Power positive (5V power input)
3, 5, 7, 8, 10, 12, 13, 15, 16 NC NC
6, 9, 14, 20, 25 GND Ground
11 TP_IRQ Touch Panel interrupt, low level while the Touch Panel detects touching
18 LCD_RS Instruction/Data Register selection
19 LCD_SI / TP_SI SPI data input of LCD/Touch Panel
21 TP_SO SPI data output of Touch Panel
22 RST Reset
23 LCD_SCK / TP_SCK SPI clock of LCD/Touch Panel
24 LCD_CS LCD chip selection, low active
26 TP_CS Touch Panel chip selection, low active
many thanks Ronald