MicroTerminale

Un terminale fisico implementato su microcontrollore.

periferiche:

• display: lcd a caratteri. controller hd44780, 4 righe x 16 o 20 colonne
• tastiera: usb HID

terminal mode:

• vt100 ? sembra che le features corrispondano piu o meno con quel che si puo fare su hd44780
• vt102 ?
• vt220 ?

uscita: UART rs232 con livelli TTL

il codice https://github.com/74hc595/Terminalscope/blob/master/terminal.c sembra agevolmente sciacallabile e ben fatto.

vanno reimplementate le funzioni lato uart e lato display.

https://github.com/74hc595/Terminalscope/blob/master/video.c

un primo problema e' che i display hd44780 non supportano il testo in negativo. non sembrano esistere controller diffusi che lo permettano. o lo si rende graficamente in un'altro modo o lo si visualizza come testo normale.

Tastiera

http://ww1.microchip.com/downloads/en/AppNotes/01212a.pdf

Tastiere compatte

• http://www.cartft.com/catalog/il/478 8 cm x 5 cm x 1 cm
• http://usb.brando.com/usb-slim-keyboard-w9716-_p01189c034d015.html 297 x 113 x 16mm
• http://usb.brando.com/usb-slim-keyboard-w8017-_p01186c034d015.html 217 x 116 x 18mm
• http://usb.brando.com/usb-ultra-slim-keyboard_p03020c034d015.html 300 x 152 x 12mm

keypad

16 tasti: da 0 a 9 e A/su B/giu C/sinistra D/destra E/enter F/exit

• microswitch in matrice di 4x4: costoso, bisogno di bucare box
• touch capacitivo: complesso lato SW, tocco meno confortevole

http://www.microchip.com/stellent/groups/SiteComm_sg/documents/DeviceDoc/en542792.pdf

http://ww1.microchip.com/downloads/en/DeviceDoc/39743a.pdf

Connettore keypad

Pin	Funzione	Nome
1		KBD_ROW1
2		KBD_ROW2
3		KBD_ROW3
4		KBD_ROW4
5		KBD_COL1
6		KBD_COL2
7		KBD_COL3
8		KBD_COL4

lcd

• LCD a caratteri da 3.3v
  • 20X4 http://www.newhavendisplay.com/specs/NHD-0420DZ-FL-YBW-3V3.pdf
  • 16x4 http://www.newhavendisplay.com/nhd0416b1zfspgybwl33vnonstocked100pc-moq-p-5162.html

un fet controlla l'accensione della backlight

Connettore display

Pin	Funzione	Nome
1		LCD_DATA1
2		LCD_DATA2
3		LCD_DATA3
4		LCD_DATA4
5		LCD_EN
6		LCD_RS
7		V+
8		GND

uC

PIC24FJ64GB002 http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en536121

USB host mode:

• http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en536935

Pin	Funzione	Nome	porta sul uC
1		MCLR
2	Uart TX		PGED3/AN0/C3INC/VREF+/ASDA1(2)/RP5/PMD7/CTED1/VBUSVLD/VCMPST1/CN2/RA0
3	Uart Rx		PGEC3/AN1/C3IND/VREF-/ASCL1(2)/RP6/PMD6/CTED2/SESSVLD/VCMPST2/CN3/RA1
4	Dati Programmazione		PGED1/AN2/C2INB/DPH/RP0/PMD0/CN4/RB0
5	Clock Programmazione		PGEC1/AN3/C2INA/DMH/RP1/PMD1/CN5/RB1
6	LCD bit 5		AN4/C1INB/DPLN/SDA2/RP2/PMD2/CN6/RB2
7	LCD bit 6		AN5/C1INA/DMLN/RTCC/SCL2/RP3/PMWR/CN7/RB3
8	V-		VSS
9	Xtal		OSCI/CLKI/C1IND/PMCS1/CN30/RA2
10	Xtal		OSCO/CLKO/PMA0/CN29/RA3
11	LCD bit 7		SOSCI/C2IND/RP4/PMBE/CN1/RB4
12	Cicalino		SOSCO/SCLKI/T1CK/C2INC/PMA1/CN0/RA4
13	V+		VDD
14	LCD bit 8		TMS/USBID/CN27/RB5
15			VBUS
16	LCD Enable		TDI/RP7/PMD5/INT0/CN23/RB7
17	LCD RS		TCK/USBOEN/SCL1/RP8/PMD4/CN22/RB8
18			TDO/SDA1/RP9/PMD3/RCV/CN21/RB9
19	VSS (regolatore on)		DISVREG
20	Cap verso VSS		VCAP/VDDCORE
21	USB data +		PGED2/D+/VPIO/RP10/CN16/RB10
22	USB data -		PGEC2/D-/VMIO/RP11/CN15/RB11
23			VUSB
24	Uart RTS		AN11/C1INC/RP13/PMRD/REFO/SESSEND/CN13/RB13
25	Uart CTS		AN10/C3INB/CVREF/VCPCON/VBUSON/RP14/CN12/RB14
26	Backlight		AN9/C3INA/VBUSCHG/RP15/VBUSST/CN11/RB15
27	V-		VSS
28	V+		VDD

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letture:

• http://www.xfree86.org/current/ctlseqs.html
• http://www.tldp.org/HOWTO/html_single/Text-Terminal-HOWTO/
• http://www.linusakesson.net/programming/tty/index.php
• http://www.catb.org/~esr/terminfo/
• http://pubs.opengroup.org/onlinepubs/007908799/xcurses/terminfo.html#tag_002_001_001
• http://www.msarnoff.org/terminalscope/
• http://man.he.net/man4/console_codes
• http://www.vt100.net/vt_history
• http://lcd-linux.sourceforge.net/
• http://www.byvac.co.uk/downloads/datasheets/BV4308%20DataSheet.pdf
• https://github.com/nottwo/BasicTerm
• http://doc.byvac.com/index.php5?title=Arduino_VT100
• http://www.amcnicoll.com/avr-liberty-dox/vt100_8h.html