Difference between revisions of "MMBASIC on XIAO RP2040"
Jump to navigation
Jump to search
Blwikiadmin (talk | contribs) |
Blwikiadmin (talk | contribs) |
||
| Line 7: | Line 7: | ||
* 8 Flash locations for storage. | * 8 Flash locations for storage. | ||
* Support for SD Card | * Support for SD Card | ||
| + | |||
| + | === MMBASIC Credits === | ||
| + | |||
| + | Peter Mather led the project, ported the MMBasic interpreter to the Raspberry Pi Pico and wrote the hardware device drivers. Geoff Graham wrote the MMBasic interpreter and the manual. Mick Ames wrote the PIO compiler and its corresponding documentation. | ||
== Hardware == | == Hardware == | ||
| Line 14: | Line 18: | ||
* [[SD CARD X49]] | * [[SD CARD X49]] | ||
| − | + | === Install MMBASIC on Seeed XIAO RP2040 === | |
| − | |||
| − | |||
| − | |||
| − | |||
* Hold down the "BOOT" button | * Hold down the "BOOT" button | ||
| Line 46: | Line 46: | ||
</pre> | </pre> | ||
| − | + | === SD Card Wiring === | |
* [[SD_CARD_X49]] card | * [[SD_CARD_X49]] card | ||
| Line 96: | Line 96: | ||
|} | |} | ||
| − | + | === SD Configuration === | |
<PRE> | <PRE> | ||
| Line 147: | Line 147: | ||
</pre> | </pre> | ||
| − | + | === GPIO from MMBASIC === | |
{| class="wikitable" | {| class="wikitable" | ||
| Line 179: | Line 179: | ||
|} | |} | ||
| − | + | === MMBASIC - Using Pins === | |
* Digital I/O | * Digital I/O | ||
| Line 205: | Line 205: | ||
</pre> | </pre> | ||
| − | + | === Demo Code === | |
* [https://github.com/land-boards/QT-Py/tree/main/MMBASIC/SD_Card SD Card contents] | * [https://github.com/land-boards/QT-Py/tree/main/MMBASIC/SD_Card SD Card contents] | ||
| Line 211: | Line 211: | ||
*** Bounces a bit across the [[PROTO16-I2C]] card | *** Bounces a bit across the [[PROTO16-I2C]] card | ||
| − | + | === RS-232 (option) === | |
[[file:DTE_P562-720px.jpg]] | [[file:DTE_P562-720px.jpg]] | ||
| Line 222: | Line 222: | ||
</PRE> | </PRE> | ||
| − | + | === MMBASIC Card Stack-up === | |
[[file:QTPY49_MMBASIC_P18420-720pxV.jpg]] | [[file:QTPY49_MMBASIC_P18420-720pxV.jpg]] | ||
Revision as of 13:23, 20 July 2022
Contents
Overview
- BASIC Interpreter for the Raspberry Pi Pico running on XIAO RP2040
- MMBasic is a Microsoft BASIC compatible implementation of the BASIC language with floating point, integer and string variables, arrays, long variable names, a built in program editor and many other features
- 8 Flash locations for storage.
- Support for SD Card
MMBASIC Credits
Peter Mather led the project, ported the MMBasic interpreter to the Raspberry Pi Pico and wrote the hardware device drivers. Geoff Graham wrote the MMBasic interpreter and the manual. Mick Ames wrote the PIO compiler and its corresponding documentation.
Hardware
- QTPy49 breakout card
- Seeed Studio XIAO RP2040
- SD CARD X49
Install MMBASIC on Seeed XIAO RP2040
- Hold down the "BOOT" button
- The "B" is written on the board shown to the right
- Connect the XIAO RP2040 via USB C cable to your computer while still pressing the button
- The computer then will appear a disk driver(RP1-RP2)
- Download the PicoMite_Firmware.zip
- Drag the .uf2 file to the disk drive ("RP1-RP2")
- Card will re-boot
- Connect in TeraTerm over serial
- Free memory
> print mm.ver 5.070501 > memory Program: 0K ( 0%) Program (0 lines) 124K (100%) Free RAM: 1K ( 1%) 3 Variables 0K ( 0%) General 155K (99%) Free
SD Card Wiring
- SD_CARD_X49 card
- NO5V jumper installed
| Signal | SD_CARD_X49 | QTPy49 conn | QTPy GP | PiPico Pin |
|---|---|---|---|---|
| SPI_SCLK | J1-3 | J3-6 | GP2 | GPIO2 |
| SPI_MOSI | J1-4 | J3-4 | GP3 | GPIO3 |
| SPI_MISO | J1-2 | J3-5 | GP4 | GPIO4 |
| SPI_SS | J1-5 | J9-3 | GP26 | GPIO26 |
| GND | J1-1 | J9-1 | ||
| VCC (3.3V) | J1-7 | J9-2 |
SD Configuration
OPTION SYSTEM SPI GP2, GP3, GP4 OPTION SDCARD GP26 OPTION COLOURCODE ON
- Verify it is working
> FILES A:/ <DIR> basic <DIR> bmps <DIR> demos <DIR> games <DIR> jpegs <DIR> lbcards <DIR> performance <DIR> wave 8 directories, 0 files
On-Board LED
- No Built-in support in MMBASIC for the on-board NEOPIXEL
- Red, Green, Blue LED
- Pull Low to turn on RGB LED bits
- At-boot - RGB LED blinks Cyan/Green by MMBASIC
- Red LED = GP17
- Green LED = GP16
- Blue LED = GP25 (Used by MMBASIC)
' Make pins outputs SETPIN GP17, DOUT:' Red LED SETPIN GP16, DOUT:' Green LED SETPIN GP25, DOUT:' Blue LED ' Turn off LEDS PIN(GP17)=1:' Turn off Red LED PIN(GP25)=1:' Turn off Blue LED PIN(GP16)=1:' Turn off Green LED ' Turn on LEDs PIN(GP17)=0:' Turn on Red LED PIN(GP25)=0:' Turn on Blue LED PIN(GP16)=0:' Turn on Green LED
GPIO from MMBASIC
| QTPy49 Marking | GPIO |
|---|---|
| A0 | GP26 (SD_SS) |
| A1 | GP27 |
| A2 | GP28 |
| A3 | GP29 |
| I2C_SDA | GP6 |
| I2C_SCL | GP7 |
| RX | GP1 |
| TX | GP0 |
MMBASIC - Using Pins
- Digital I/O
SETPIN GP27, DIN:' Digital Input SETPIN GP28, DOUT:' Digital Output PIN(GP28) = 1:'Digital output
- Analog Input
SETPIN GP29, AIN:' Analog Input
- SETPIN(s) for Serial and I2C
SETPIN GP1, GP0, COM1 SETPIN GP6, GP7 I2C2
Demo Code
- SD Card contents
- PROTO16_LEDs.bas
- Bounces a bit across the PROTO16-I2C card
- PROTO16_LEDs.bas
RS-232 (option)
OPTION SERIAL CONSOLE GP0, GP1
MMBASIC Card Stack-up
