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Forum Index : Microcontroller and PC projects : Programming PIC32
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vk4tec Senior Member  Joined: 24/03/2012 Location: AustraliaPosts: 239 |
Hello I would like to learn about the PIC32 To do this I would like to program a PIC 32 I see my mini maximite has ICSP Am I able to experiment and put back the mini Maximite original software ? I don't want to trash it just for the purposes of playing Andrew Andrew Rich VK4TEC www.tech-software.net |
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| JohnS Guru  Joined: 18/11/2011 Location: United KingdomPosts: 3673 |
Should work fine. One of the gotchas is making sure you've selected the device properly and early on. One of the reasons is new firmware is sent from your PC to the PICkit3 and you want it there at the right time. If you follow the instructions about how to program the device it should be fine. I think the problem comes when people just leap in and guess. There's a good warning on the Olimex site about a bug that's doc'd on Microchip site and is worth reading so you avoid bricking the PIC32. John |
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kiiid Guru Joined: 11/05/2013 Location: United KingdomPosts: 671 |
In general the "bug" with Pickit3 can be simply defined like this: Do not press the button on the Pickit3 programmer when working with PIC32! Advise: you will be better off removing it completely http://rittle.org -------------- |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1328 |
Andrew, I assume you mean program it without the MMBasic interpreter. Yes you can do that using the ICSP connector, your PICkit 3 and MicroChip's 'MPLab X IDE' program or the 'MPLab IPE' program that gets installed with it. I think at one stage you said you'd already installed those. I haven't tried it but I don't see why you can't reprogram MMBasic back into it after you've 'played' with it. I think Geoff assumed people would sometimes want to reprogram it, otherwise why would he have included the ICSP connector? To re-load MMBasic you need to use the ICSP connector etc, as above, not the Mini Maximite's mini USB connector (connected directly to the PC) that you would normally use to upgrade the 'already-installed' version of the MMBasic interpreter with. To re-install MMBasic you also have to use a 'bootloader included' version of the .hex firmware file for the chip used in the Mini Maximite (the 64 pin PIC32MX695F512H or PIC32MX795F512H). You'll have to check Geoff's website but I think the version you'll need is V2.1. Make sure you don't use a 'bootloader included' version that's meant for the Colour Maximite - they'll be later versions, i.e. I think the most recent is V4.1. Those versions assume the 100 pin 'L' version of the chips is being programmed (the H or L is the final letter in the chip designation). As far as 'learning about the PIC32' or 'programming' it, I'm in the same boat as you. Geoff recommended the book 'Programming 32 Bit Microcontrollers in C - Exploring the PIC32' by Lucio Di Jasio. I bought that and it is very good, starting from the bottom up and with heaps of example code etc. The only problem is the book isn't cheap, the best price I found was on the www.fishpond.com.au site at about $54, nil postage - it took about a week to arrive. Most other sources were in the high $70's and often included considerable postage. Other than that I guess you can chase around the web for info, e.g check out PIC32 BOB Projects. Greg |
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| MOBI Guru Joined: 02/12/2012 Location: AustraliaPosts: 819 |
If you manage as I did a few months ago to erase your MM pic32, it is no big deal to re-flash it using ICSP and the MM basic (early version) with the built in boot loader. I broke out in a cold sweat at the time, but thanks to Geoff G, the "oops" moment was easily rectified. Its not the end of the world like I thought it might be. David M. |
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