Search found 8 matches

by pthwebdev
Sat Jul 20, 2019 8:35 pm
Forum: ESP8266 boards
Topic: Creating larger ROMs
Replies: 21
Views: 901

Re: Creating larger ROMs

OK, that was a lot of work. This is my first external module, so there were quite a lot of things I had to find out. The bad news: 0x4030000 is indeed the limit when reading flash as regular memory. The pattern is not exactly as in the documentation, but the data is, read after read, dump after dump...
by pthwebdev
Sat Jul 20, 2019 9:48 am
Forum: ESP8266 boards
Topic: Creating larger ROMs
Replies: 21
Views: 901

Re: Creating larger ROMs

First, great job that you can create an image that has a filesystem in it. A note, however. In my own firmware, I use the concept of resources, comparable to what classic MacOS and Win32 applications had. I am in the process of incorporating that into MicroPython. So I had to see if the assumption w...
by pthwebdev
Wed Jul 10, 2019 8:29 am
Forum: MicroPython pyboard
Topic: CAN issue with NUCLEO
Replies: 1
Views: 164

Re: CAN issue with NUCLEO (SOLVED)

Great Scott, this is embarrassing. No filter , no data ! At all. Null, nada, zip, zilch. My assumption, as on other platforms where I work with CAN, was that no filter meant all data . It seems to be that calling initfilterbanks, of which the documentation says it disables all filters, means that no...
by pthwebdev
Mon Jul 08, 2019 6:43 pm
Forum: MicroPython pyboard
Topic: CAN issue with NUCLEO
Replies: 1
Views: 164

CAN issue with NUCLEO

I have a setup with two devices interchanging CAN messages. To this setup I added a NUCLEO_F746ZG. A message sent from the NUCLEO is received by both other devices. So I know I have the baudrate correct. However, can.recv(0) never returns a message. It always times out (OSError: [Errno 110] ETIMEDOU...
by pthwebdev
Mon Jul 08, 2019 9:07 am
Forum: micro:bit boards
Topic: build from source issue
Replies: 2
Views: 167

Re: build from source issue

I just did a complete update of the mp project. Seeing as I just did that about two weeks or so ago, I did not think too much could have changed. However, after the git pull and submodule init followed by a make clean and make all, I got a hex file that now seems to work. Yeah! As for flow-control; ...
by pthwebdev
Mon Jul 08, 2019 8:03 am
Forum: micro:bit boards
Topic: build from source issue
Replies: 2
Views: 167

build from source issue

Hi, I have build the nRF52 version with BOARD=microbit. I have a very recent version, 1.11. The build does create a hex file. I can flash this onto the board (using the "mount", I don't use PyOCD). However, the serial output only gives a single 'M'. At first I thought it could be a baudrate issue, b...
by pthwebdev
Wed Jul 03, 2019 7:58 am
Forum: ESP8266 boards
Topic: debug challenge (SOLVED)
Replies: 2
Views: 135

Re: debug challenge (SOLVED)

Thanks for the thoughts/notes. I guess the main reason is unfamiliarity with MicroPython. I have mainly worked on my own firmware. Deferring handling is just a common practise. I was aware of the schedule function and did not think to try working without it. I was unaware of the "hard" parameter. I'...
by pthwebdev
Tue Jul 02, 2019 2:41 pm
Forum: ESP8266 boards
Topic: debug challenge (SOLVED)
Replies: 2
Views: 135

debug challenge (SOLVED)

Excuses for a long description, but it is a rather difficult issue to solve and I want to show all the steps I have already taken. On an esp8266 (a Wemos D1 arduino form factor) I have a chip connected that uses SPI. I can use HSPI. Exchange of information for long periods of time is not a problem. ...