Difference between revisions of "DsPIC30F 5011 Development Board"

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==[[Bootloader Development]]==
 
==[[Bootloader Development]]==
 
*Description on concepts and development on bootloader
 
*Description on concepts and development on bootloader
 +
*Description on dsPicProgrammer to download firmware via bootloader
  
  

Revision as of 21:44, 8 April 2009

This project aims to provide the development tools for building a multi-purpose MCU board. It was initially based on Microchip dsPic30F5011 and was later ported to dsPic33FJ128GP306 and dsPic33FJ256GP506. Despite the specific implementation on these platforms, information provided in this wiki may give useful directions for developing similar embedded systems with different platforms

Introduction

Features of dsPIC30F5011

  • 2.5 to 5V [3.3V for dsPic33, less heat]
  • Up to 30MIPs [upto 40MIPs for dsPic33]
  • High current/sink source I/O pins: 25mA [only 4mA for dsPic33]
  • 16-bit arithmetics
  • DSP Instruction Set
  • Dual programming techniques: ICSP and RTSP
  • Memory
    • 44K flash (66Kb) [more for dsPic33]
    • 4Kb RAM [more for dsPic33]
    • 1Kb EEPROM [none for dsPic33]
  • Communications ports
    • UART
    • I2C: up to 1Mbps
    • SPI
  • ADC
  • 10-bit A/D, 1.1 Msps
  • 12-bit A/D, 200 ksps
  • No DAC (PWMs only)
  • Pin-to-pin compatible with other dsPICs
Comparison between different dsPICs
dsPic Price
US$		 MIPs Flash
(kB)		 RAM
(kB)		 EEPROM
(kB) 		I/O ADC
12-bit		 IC OC Motor
Ctrl		 Timers QEI UART SPI I2C CAN Codec
30F5011 5.91 30 66 4 1 52 16 8 8 0 5x16bit
2x32bit 		0 2 2 1 2 1
30F6011A 7.73 30 132 6 2 52 16 8 8 0 5x16bit
2x32bit 		0 2 2 1 2 0
30F6012A 7.85 30 144 8 4 52 16 8 8 0 5x16bit
2x32bit 		0 2 2 1 2 1
33FJ128GP206 4.62 40 128 8 0 53 18 8 8 0 9x16bit
4x32bit 		0 2 2 1 0 1
33FJ128GP306 4.81 40 128 16 0 53 18 8 8 0 9x16bit
4x32bit 		0 2 2 2 0 1
33FJ128GP706 5.49 40 128 16 0 53 18 8 8 0 9x16bit
4x32bit 		0 2 2 2 2 1
33FJ128MC506 4.97 40 128 8 0 53 16 8 8 8 9x16bit
4x32bit 		1 2 2 2 1 0
33FJ128MC706 5.38 40 128 16 0 53 16 8 8 8 9x16bit
4x32bit 		1 2 2 2 1 0
33FJ256GP506 6.11 40 256 16 0 53 18 8 8 0 9x16bit
4x32bit 		0 2 2 2 1 1

Forums

  • Microchip: Official forum by Microchip
    • See MPLAB ICD 2, MPLAB IDE, MPLAB C30 Compiler, ASM30, Link30 forum, dsPIC30F Topics, dsPic33 topics
  • HI-TECH Software Forum: Discussion on dsPICC, a C compiler developed by HI-TECH
  • FreeRTOS Real Time Kernel: Open Discussion and Support on FreeRTOS
  • Nabble: MicroControllers - GNUPIC

References

Code Examples

Related Development


Programming Methods

  • There are 2 programming methods: In-Circuit Serial Programming (ICSP) and Run-Time Self-Programming (RTSP)
  • ICSP allows the devices to be programmed after being placed in a circuit board.
  • RTSP allows the devices to be programmed when an embedded program is already in operation.

ICSP: External Programmer (ICD2)

  • Two types of ICSP are available: ICSP and Enhanced ICSP. Both of them require setting MCLR# to VIHH (9V – 13.25V).
  • Standard ICSP
    • Use external programmer (e.g. MPLAB® ICD 2, MPLAB® PM3 or PRO MATE® II) only.
    • Required low-level programming to erase, program and verify the chip.
    • Slower, because codes are serially executed.
    • Program memory can be erased using Normal-Voltage (4.5 – 5.5V) or Low-Voltage (2.5V – 4.5V).
  • Enhanced ICSP
    • Use external programmer and Programming Executive (PE).
    • PE is stored in the on-chip memory.
    • PE allows faster programming.
    • PE can be downloaded to the chip by external programmer using the standard ICSP method.
    • PE contains a small command set to erase, program and verify the chip, avoiding the need of low-level programming.

Hardware Interface

Pin Used by ICSP
Pin Label Function Pin Number
MCLR# Programming Enable 7
VDD Power Supply 10, 26, 38, 57
VSS Ground 9, 25, 41, 56
PGC Serial Clock 17
PGD Serial Data 18


Available Programmers in the Market
Product Name Interface with PC Interface with Device *Price (US) Remarks
MPLAB® ICD 2 USB or RS232 6-PIN RJ-12 connector $159.99 -
ICDX30 USB or RS232 6-pin RJ-11 $51.00 -
Clone Microchip ICD2 (Now Using) USB 6-pin flat cables $52.35 Do not work with new MPLAB versions (works for 7.50), communication to MPLAB may sometime hang (see manual)

*For reference only (exclude shipping), subject to change


DIY ICD 2 Programmer Circuit
Source Schematic PIC16F877A Bootloader
Patrick Touzet Yes HEX
Nebadje Yes Zip


Software Interface

  • The program can be written and compiled in an Integrated Development Environment (IDE) using either Assembly or C. The complied codes are then loaded to the device through the external programmer.


Summary of IDE
Product Name Features OS Price (US$)
MPLAB® IDE Assembler Only Windows Free
MPLAB® C30 Assembler and C-Compiler Windows $895.00 (Free student version1)
Piklab Assembler and C-Compiler Linux Free
  1. Full-featured for the first 60 days. After 60 days, some code optimization functions are disabled. The compiler will continue to function after 60 days, but code size may increase.

RTSP: COM Port (Bootloader)

  • RTSP works in normal voltage (MCLR# no need to raise to VIHH).
  • No literature has mentioned the incorporation of Programming Executive (PE). Presumably, since Enhanced ICSP needs to set MCLR# to VIHH, RTSP cannot use PE.
  • Refer to bootloader section.


IC Requirements

IC Requirements
Part No. Description Min Temp Max Temp Min Volt Max Volt Typ Cur Max Cur
dsPIC30F5011-30I/PT uP -40oC 85oC 2.5V [1] 5.5V 145mA 217mA
MAX3232ESE RS232 driver -40oC 85oC 3.0V 5.5V 0.3mA 1.0mA
DS3695N RS485 driver -40oC 85oC 4.75V 5.25V 42mA 60mA
DAC6574IDGS 10-bit Quad-DAC I2C -40oC 105oC 2.7V 5.5V 0.6mA 0.9mA
74HC14D Quad-Schmitt Trigger -40oC 125oC 2.0V 6.0V 0.02mA
Overall -40oC 85oC 4.75V 5.25V <300mA [2]
dsPIC33FJ128GP306-I/PT uP -40oC 85oC 3.0V [1] 3.6V 74mA 250mA
ADM3485EARZ RS485 driver -40oC 85oC 3.0V 3.6V 1.1mA 2.2mA
24LC256-I/SN 256kBits I2C EEPROM -40oC 85oC 2.5V 5.5V 400uA 3mA
LM3940IMP-3.3 5V-3.3V Regulator -40oC 125oC 5.0V 7.5V 10mA 250mA
  1. Minimum voltage measured is 3.3V (with 2 LEDs blinking) running at 30MHz.
  2. Measured current at 5V is 180mA (with 2 LEDs blinking only)


Development Environment

Windows

PIC setup win.JPG

  • C-Compiler, Assembler and Linker are under GNU license.
    • MPLAB C30 C Compiler (*.c -> *.s)
    • MPLAB ASM30 Assembler (*.s -> *.o)
    • MPLAB LINK30 Linker (*.o -> *.bin)
  • PA optimizer, simulator, runtime libraries, header files, include files, and linker scripts are not covered by GNU. Reference is here.
  • Microchip has integrated ASM30, LINK30, assembly header files, linker scripts in MPLAB IDE, which is free for download.
  • MPLAB C30 costs US$895. A 60-day free student version is also available. After 60-days, the optimizer is automatically disabled, while other tools can still function properly. Refer to Table 2.4.


C Libraries in MPLAB C30
Library Directory
(\\Microchip\MPLAB C30)		 Major functions
DSP Library
(e.g. libdsp-coff.a) 		\lib
\src\dsp
\support\h 		Vector, Matrix, Filter, etc.
16-Bit Peripheral Libraries
(e.g. libp30F5011-coff.a) 		\lib
\src\peripheral
\support\h 		ADC12, IOPort, UART, I2C, etc.
Standard C Libraries
(e.g. libc-coff.a, libm-coff.a, libpic-coff.a) 		\lib
\src\libm
\include 		stdio.h, time.h, float.h, math.h,
MPLAB C30 Built-in Functions none _buildin_addab, _buildin_add, _buildinmpy, etc

Linux

PIC setup linux.JPG

  • C Compiler, Assembler and Linker are under GNU license.
    • The code can be downloaded from Microchip at here.
    • Current MPLAB ASM30 Assembler: v2.04
    • Current MPLAB C30 Compiler: v2.04
  • Important Note: Only the compiler is free. The header files and library are owned by Microchip.
Pic30 C-Compiler Toolchain Templates for Conversion to Debian-based systems
Toolchain Source Instruction Remarks
v2.00 Download pic30-gcc-2.00-1.i386.rpm and pic30-binutils-2.00-1.i386.rpm.
Convert to deb files. 		Stable
Now using
v2.05 Reference to example below, but use 2.05 files Can compile
Stable but not heavily tested
v3.01 Follow example below Can compile
Unstable (sometime produce segmentation fault)
v3.10 Reference to example below, but use 3.10 files Cannot compile yet (segmentation fault)

Conversion Example

  • Pre-install these packages: dpkg-dev, debhelper, bison, flex, sysutils, gcc-3.3, fakeroot
    • cmd: sudo apt-get install dpkg-dev debhelper bison flex sysutils gcc-3.3 fakeroot
  • Download and unzip template: pic30-3.01.tar.bz2
  • Download assembler: mplabalc30v3_01_A.tar.gz. Save under /pic30-3.01/pic30-binutils-3.01/upstream/
  • Download c-compiler: mplabc30v3_01_A.tgz. Save under /pic30-3.01/pic30-gcc-3.01/upstream/
  • Install MPLAB_C30_v3_01-StudentEdition under Windows
  • Copy directories /include, /lib, /support, and /bin/c30_device.info to pic30-3.01/pic30-support-3.01/upstream/
  • Pack pic30-binutils into deb file
    • goto /pic30-3.01/pic30-binutils-3.01/
    • type cmd: dpkg-buildpackage -rfakeroot -b
  • Install pic30-binutils_3.01-1_i386.deb
    • type cmd: sudo dpkg -i pic30-binutils_3.01-1_i386.deb
  • Pack pic30-gcc-3.01 into deb file
    • goto /pic30-3.01/pic30-gcc-3.01/
    • type cmd: dpkg-buildpackage -rfakeroot -b
  • Install pic30-gcc_3.01-1_i386.deb
    • type cmd: sudo dpkg -i pic30-gcc_3.01-1_i386.deb
  • Pack support files into deb file
    • goto /pic30-3.01/pic30-support-3.01/
    • type cmd: dpkg-buildpackage -rfakeroot -b
  • Install pic30-support_3.01-1_all.deb
    • type cmd: sudo dpkg -i pic30-support_3.01-1_all.deb
  • After installation, locations of
    • C-Header (*.h): /usr/pic30-elf/include
    • Libraries (*.a): /usr/pic30-elf/lib
    • Assembly header (*.inc): /usr/share/pic30-support/inc
    • Linkerscript (*.gld): /usr/share/pic30-support/gld

Burning Program Codes to Target Board

  1. Use 'dspicprg and dspicdmp' utilities developed by Homer Reid to burn hex code (*.hex) to devices. See Reference here. Through serial port only?
  2. Use Piklab IDE. Details on file format not known.
  3. Use MPLAB IDE to burn hex code (*.hex) to devices.

Code Optimization

  • Below is a comparsion between different optimization levels for the project including drivers for 2 projects.
Comparison between differnt optimization levels
Optimization Description Project 1
Code Size
(byte)		 Project 1
Data Usage
(byte)		 Project 2
Code Size
(byte)		 Project 2
Data Usage
(byte)
O0 No optimization
Fastest Compilation 		6222 (9%) 178 (4%) 26,037 (38%) 710 (17%)
O1 Optimize
Tries to reduce code size and execution time. 		4473 (6%) 178 (4%) 22,290 (32%) 710 (17%)
O2 Optimize even more
Performs nearly all supported optimizations
that do not involve a space-speed trade-off.
Increases both compilation time and the
performance of the generated code. 		4422 (6%) 178 (4%) 21,993 (32%) 710 (17%)
O3 Optimize yet more.
O3 turns on all optimizations specified by O2
and also turns on the inline-functions option. 		4485 (6%) 178 (4%) 22,176 (32%) 710 (17%)
Os Optimize for size.
Os enables all O2 optimizations that do not
typically increase code size. It also performs
further optimizations designed to reduce code
size. 		4356 (6%) 178 (4%) 21,885 (32%) 710 (17%)


Programming Tips

  • Description on developing drivers with POSIX API


Bootloader Development

  • Description on concepts and development on bootloader
  • Description on dsPicProgrammer to download firmware via bootloader


Programming the Device

  • Description on how to use dsPicProgrammer to download firmware to dspic


Conversion to dsPIC33F Devices

  • This section discusses the conversion required from dsPIC30F5011 to dsPIC33FJ128GP306.
  • Refer to official document dsPIC30F to dsPIC33F Conversion Guidelines (DS70172A).
  • Note that this section does not mainly intend to introduce the new functionalities of dsPIC33F devices. It only serves the purpose to summarise the major (if not minimum) changes required to port the setup of dsPIC30 to dsPIC33 devices.


ToDo

  • dspic gcc compiler for 32K constant limitation
  • add chip to stable voltage upon power failure or to detect low voltage, and generate interrupt for dsPic to execute shutdown routine (e.g. save important data to NVM, shutdown ethernet etc.)
  • program the bootloader into flash under linux platform
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