 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : Coming soon: cheap, fast, no-soldering
  Page 2 of 4   |
|||||
| Author | Message | ||||
| tomxp411 Newbie  Joined: 04/04/2019 Location: United StatesPosts: 24 |
I'm interested in running MMBASIC on a Teensy development board (180 MHz ARM Cortex-M4). Is your code compiled through the Arduino IDE, or are you using something more specific to the ARM Cortex or to that dev board in particular? |
||||
bigmik Guru  Joined: 20/06/2011 Location: AustraliaPosts: 2944 |
Lads, @PeterM, Great find and great effort for your port.. I will have to get one to play with. Re. NBN in Aus. FTTC in Aus stands for "Fibre to the CURB" I have FTTN "Fibre to the NODE" and I am on a 100MBS unlimitted plan and (when the kids are at school) off peak can get up to about 96MBs and slows to around 60MBs at peak. I am with Telstra (Bigpond) and pay $89 for 100MBs unlimitted and home ph with most calls included.. Although I got a special price as they stuffed up my plan a couple of times so I got the speed upgrade for free (normally $30pm) I just did a speedtest now as follows:  Kind Regards, Mick Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
||||
GoodToGo! Senior Member  Joined: 23/04/2017 Location: AustraliaPosts: 188 |
I was “lucky” to get the NBN last year. Speeds are usually around 46Mbps, but Foxtel Now still drops in and out of SD and HD when I want to watch sport...  and YouTube videos buffer at certain times of the evening and the Xbox drops out occasionally....Interestingly, the Vodafone 4G service at my place usually tops out at 90Mbps! (Kogan uses the VF network) Makes me wonder why I bother with NBN..... ...... Don't worry mate, it'll be GoodToGo! |
||||
Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9458 |
Mik - you should change that image, as your public IP address is on display. Unless you are behind a VPN or something, in which case..... My speed test is:  The ping is a little high IMHO, but the speed seems fine - I never have any complaints as to speed. I have fibre right to the house, so no intermediate copper links. That seems like an odd way to do a FIBRE network.... I'm on unlimited fibre with landline etc - about $100 a month in NZ money, and I also get my house power on the same bill, so it is nice and easy. [Quote=robert.rozee]here in NZ they are rolling out fibre to the house, in a few years i'm picking there will be hardly any copper left. i've just ordered 30Mb/s fibre for the place i'm renovating (and moving into soon) for a cost of nz$65/month. no landline included, but on prepay cellphone calls are only 4 cents/minute.[/Quote] Indeed. I used to chase copper cable faults semi-regularly over the years, but since they have installed fibre around the village, residents who move to fibre have their copper disconnected, and that is a good thing. Copper faults have been a pain in my arse for years. You can also get wireless broadband and land-line, which is basically just a glorified cell-phone in a box to give the BB and phone via the cellphone network. Many residents have picked up one or the other, and that is a good thing, as the 200-pair copper cable was pretty much maxed out which does not give you any room to move if a pair goes crook, but we were loathe to install more copper, as we knew the fibre and wireless options were coming. Luckily they arrived in time, and so now the load is well an truly off the copper to the exchange.  Smoke makes things work. When the smoke gets out, it stops! |
||||
crez Senior Member Joined: 24/10/2012 Location: AustraliaPosts: 152 |
My order is in ,too! |
||||
OA47 Guru Joined: 11/04/2012 Location: AustraliaPosts: 981 |
Thankyou Peter, my order is in. Just to add my NBN story. I live about 15K from a major rural centre and a forward thinking gentleman that I worked with instigated a fibre network in the outlying areas in the 1990's. I have a fibre node about 2.5Km from my home and I have a copper connection to this node. Initially we were offered an ADSL2 connection which offered me speeds up to 16Mb/s when this node was fully subscribed a heat problem caused a downgrade to ADSL and I have been consistently getting speeds of around 9Mb/s. Unfortunately with the roll out of NBN in our area we are only offered wireless connection which is slower and more expensive than the ADSL2. Go figure  |
||||
palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 1959 |
I have also ordered' My NBN (No Bloody Network)  Telstra $90/month with home phone, what a joke. "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
||||
plover Guru Joined: 18/04/2013 Location: AustraliaPosts: 302 |
matherp . The slightly more expensive version you quoted has facility for expanding memory. I am querious how much memory would you need for framebuffer operation? |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9995 |
I use System workbench for STM32. The Arduino IDE is very poor compared to any decent eclipse based IDE The slightly more expensive version you quoted has facility for expanding memory. I am querious how much memory would you need for framebuffer operation? 800x480x2 bytes for a SSD1963. The problem is that the memory isn't installed so we are back to soldering high pin-count SMD chips. I also don't know how the memory would interact with the display I/F as both use the FSMC bus |
||||
| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9458 |
[Quote=matherp]2 x 12-bit DAC[/Quote] How do you make 12-bit WAV files for a 12-bit DAC? All my audio editing softwares(Goldwave and Audicity) do NOT support creating or saving a sound in 12-bit. 8-bit, 16-bit, 32-bit etc.....yes. 12-bit....no. Is there something I should know at this point? Smoke makes things work. When the smoke gets out, it stops! |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9995 |
WAV file playback only supports 8-bit - good enough for most things. The ArmmiteF4 supports up to 48Kbs sample rate. For full 12-bit use 44100Hz 16-bit FLAC files PLAY FLAC "mymusic.flac" |
||||
Chopperp Guru Joined: 03/01/2018 Location: AustraliaPosts: 1088 |
Recently let some smoke out of my SC +64. Bit of a bugger....Wasn't doing that much with it at the time, just reading & displaying some data. Display is now on a 44 pinner doing the same thing. Ordered a couple of these inc displays...well I hope I have..., to see they go. Be interesting to see how long they take to get here. ChopperP |
||||
| bigmik Guru Joined: 20/06/2011 Location: AustraliaPosts: 2944 |
Hi Grogs, All, Thanks for letting me know, I never noticed that before. I just look at the big numbers.. I restarted my modem and now have a new IP. Yes your ping is a fair bit high, I was going to redo my test with a 9ms ping as it often is 5 or 6ms.. Regards, Mick Mick's uMite Stuff can be found >>> HERE (Kindly hosted by Dontronics) <<< |
||||
| Grogster Admin Group Joined: 31/12/2012 Location: New ZealandPosts: 9458 |
So PLAY FLAC will be supported in this port on these two DAC's? Smoke makes things work. When the smoke gets out, it stops! |
||||
jman Guru Joined: 12/06/2011 Location: New ZealandPosts: 711 |
Great work Peter Board ordered My 2 Cents worth. We are lucky we have GB fiber in NZ  Regards Jman |
||||
| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3298 |
PCBs ordered first day. Regarding the backpack you indicated that you planned, would it be convenient to include double headers (two rows) for the I2C? Also, a header for an RS485 link for modules like these (to facilitate inter-pcb communications over distance)? https://www.ebay.ca/itm/5PCS-MAX485-RS-485-Module-TTL-to-RS-485-module-for-Arduino-Raspberry-B-fg/372643574526 Great work, as ever. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
||||
| Boppa Guru Joined: 08/11/2016 Location: AustraliaPosts: 814 |
Now ya just takin the mickey aren't ya!!!! Faster, sooner, cheaper ('Please explain' indeed....) You didn't run a fish and chip shop and have red hair by any chance Matherp??? How many remember this (utube video) Pauline Pantsdown |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9995 |
Question for all interested. Single precision floating point - grainbench benchmark gives 3419 Double precision floating point - grainbench benchmark gives 2445 Preferences? Changed my mind, no FLAC but WAV playback will support 16-bit files up to at least 48000Kbs. So 44100 files will play fine and guaranteed no pops. The current "backpack" is just a 32-pin to 40-pin TFT adapter, nothing else. I'm looking at a more comprehensive backpack with things like audio connector and/or audio amplifier but no plans yet. The STM32F4 doesn't support RS485 flow control and all the CTS/RTS pins conflict with the FSMC TFT bus so you will have to waggle a pin in code to connect to a RS485 adapter. |
||||
CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 2137 |
Double, every time. Most cases you can get away with integer but when you need FP, let's have it as accurate as possible. I have instances where code doesn't run correctly on a Mk2 (Single precision) because it can't calculate a cube root to sufficient accuracy. my 2p (and two boards ordered from Ali Express) |
||||
| cdeagle Senior Member Joined: 22/06/2014 Location: United StatesPosts: 263 |
DP please. Thanks Peter |
||||
| Page 2 of 4 |
|||||
 Print this page |
