Search found 1336 matches

by stevestrong
Tue Jul 25, 2017 9:39 am
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 49
Views: 605

Re: TEK 4010/4014 Vector Graphics terminal DEMO

Btw, why such spread?? (2.897ms - 7.933ms). I can only think on the host processing speed, the libmaple USB has a 2kB Tx buffer, uses blocking Tx, and if the Tekline() command sends more than 5 bytes, then the buffer gets full and will allow sending of further bytes only if the host is reading some...
by stevestrong
Tue Jul 25, 2017 9:32 am
Forum: STM32F4 Boards
Topic: How to flash STM32_F4VE
Replies: 4
Views: 27

Re: How to flash STM32_F4VE

Try another USB2.0 port, avoid USB 3.x ports. Or try any of the Serial 1,2,3 ports. You can also try to connect the board via an USB hub, sometimes it helps. What does the board in the initial state (BOOT0 to GND)? LED blinks? Any output on serial ports? Finally the board can be faulty. I would defi...
by stevestrong
Tue Jul 25, 2017 8:41 am
Forum: STM32F4 Boards
Topic: How to flash STM32_F4VE
Replies: 4
Views: 27

Re: How to flash STM32_F4VE

Upload possibilities: 1. DFU over USB or any of Serial 1,2,3 - set BOOT0 jumper (BT0 on the black F4 board) to 3.3V - reset the board Now the F4 chip should enter DFU upload mode, the device manager should show you "STM32F4 DFU device" or similar. If not, then you have to try other drivers. - flash ...
by stevestrong
Mon Jul 24, 2017 11:43 pm
Forum: Code snipplets
Topic: TEK 4010/4014 Vector Graphics terminal DEMO
Replies: 49
Views: 605

Re: TEK 4010/4014 Vector Graphics terminal DEMO

Regarding doing fills.
Maybe we can bring Tek to fill out a rectangle if we write a "space" character with the desired color and dimension at the desired coordinate.
Of course, this will only work for horizontally and vertically aligned fills.
by stevestrong
Mon Jul 24, 2017 7:37 pm
Forum: IDE's
Topic: Getting Eclipse to work? A proper guide?
Replies: 2
Views: 26

Re: Getting Eclipse to work? A proper guide?

Don't upgrade to oxygen only use neon 3.

I would recommend to use PlatformIO, then export project to Eclipse. It works.
by stevestrong
Mon Jul 24, 2017 11:56 am
Forum: Libraries & Hardware
Topic: STM32F103C8 & TFT (ili9325)
Replies: 193
Views: 12906

Re: STM32F103C8 & TFT (ili9325)

1. faster reading from card If you are using the SD card only for reading, then you could use the SdFatEX class (search the SDFat lib for that information, and/or the forum) or use at least a 4kB buffer. http://stm32duino.com/viewtopic.php?f=51&t=2034&p=27982&hilit=sdfatex#p27982 2. parallel process...
by stevestrong
Mon Jul 24, 2017 11:32 am
Forum: Libraries & Hardware
Topic: STM32F103C8 & TFT (ili9325)
Replies: 193
Views: 12906

Re: STM32F103C8 & TFT (ili9325)

I am almost sure that I tested the BMP example reading a file from SD card, but I will check it again.
by stevestrong
Mon Jul 24, 2017 8:21 am
Forum: Libraries & Hardware
Topic: Use STM32F103C8 with TFT 320QVT 9341
Replies: 20
Views: 435

Re: Use STM32F103C8 with TFT 320QVT 9341

If the 401 has FSMC, then you could use the actually available Arduino_STM32 core for 407, it has the FSMC adapted for 16 bit parallel access LCDs.
Search the forum for FSMC.
by stevestrong
Mon Jul 24, 2017 7:36 am
Forum: General discussion
Topic: Blue Pill that kills
Replies: 3
Views: 79

Re: Blue Pill that kills

I would bet:
1) the 3.3V regulator is dead. Replace or remove it.
2) the STM32 chip is dead (less likely, they are really easy to destroy)
by stevestrong
Fri Jul 21, 2017 3:41 pm
Forum: STM Nucleo boards
Topic: Nucleo F103-RB and slow TFT Refresh
Replies: 1
Views: 48

Re: Nucleo F103-RB and slow TFT Refresh

Have you measured the run-time of each function in your main loop?
How often interrupts are generated?
How much is the TFT SPI clock frequency?