Wednesday, 18 May 2016

Fellowes 99ci repair part 1

I picked up a reconditioned Fellowes 99ci shredder a while ago as it was significantly cheaper than a brand new model. For a while it worked well enough but as shredding isn't something I do particularly often by the time it started to have issues it was of course out of warranty.

Thursday, 12 May 2016

MX150 board issues

If you're one of the people who has downloaded the MX150 board files I uploaded earlier, please accept my apologies. I realised that I've managed to break the PPS mapping on the board definition files which makes working with the board more frustrating than it should be. Once I've fixed the problem and tested it thoroughly, I will make the files available again and put up a new post.

The bootloader itself is not affected by this, so any chips you've flashed it to will be fine.

Tuesday, 10 May 2016

MX150 "board"

I said that I would publish the bootloader, board definition files and pinout map for the PIC32MX150B chip within the MPIDE environment, and here it is. You can find the hex file for programming a blank chip, the source for the bootloader, and the three board files ready to go. The part I've been using these with looks like this so far:
Minimal PIC32MX150 setup!

Toying with PIC32MX150

For a project I'm toying with, I've needed a microcontroller with three comparators onboard. In this case, I've been playing with 28 pin PIC32 device, specifically the PIC32MX150F128B. Admittedly, this is mostly because I already have a few in the parts box! In a nutshell, you get 128K of FLASH, 32K of RAM, 5 PWM pins, 2 UARTs, 2 SPI/I2S interfaces, 20 GPIO pins, a charge time measurement unit and a 1Msps ADC with a 10 input mux, and no need for a crystal. In this post, I'm going to run through the PIC32-avrdude-bootloader, and MPIDE setup I needed to do to get this part up and running.