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rogerclarkmelbourne / Arduino_STM32

Arduino STM32. Hardware files to support STM32 boards, on Arduino IDE 1.8.x including LeafLabs Maple and other generic STM32F103 boards
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Crash over 64Kbytes #811

Closed AntonioFromBrazil closed 4 years ago

AntonioFromBrazil commented 4 years ago

I am using an STM32F103CBT6 generic board, with 128K Flash and 20K RAM. My sketchs are being compiled with the Arduino IDE 1.8.13, using the Roger Clark's core. The compiller recognoize 20480 bytes of RAM (I am using only ~5K) and 131072 bytes as the maximum memory for programm but if the programm size go over 64k it crashs... It did not even start... It seams that the compiller is not managing address over 0x0800FFFF since the sketch crashs as soon as it sizes cross over that border. Bellow is a output issued at end of compillation (less than 64k). Is it possible to be a bug in the core ? Tks, Antonio

http://stm32flash.googlecode.com/ Using Parser : Raw BINARY Interface serial_w32: 115200 8E1 Version : 0x22 Option 1 : 0x00 Option 2 : 0x00 Device ID : 0x0410 (Medium-density)

RAM : 20KiB (512b reserved by bootloader)
Flash : 128KiB (sector size: 4x1024)
Option RAM : 16b
System RAM : 2KiB
Write to memory
Erasing memory
Wrote address 0x0800fb38 (100.00%) Done.
Starting execution at address 0x08000000... done.
stevstrong commented 4 years ago

Which upload method did you use?

AntonioFromBrazil commented 4 years ago

Generally I use Serial but I have already tryied ST-Link and the result is the same. But it is curious that with ST-Link it reports only 64K !!! With Serial it repoprts 128K. The compiller output when I upload with ST-Link is:

ST-LINK SN: 3823040232124153354B4E00 ST-LINK Firmware version: V2J31S7 (Need Update) Connected via SWD. SWD Frequency = 4000K. Target voltage = 3.2 V Connection mode: Normal Reset mode: Software reset Device ID: 0x410 Device flash Size: 64 Kbytes Device family: STM32F10xx Medium-density

JiriBilek commented 4 years ago

Are you really sure the MCU is STM32F103CBT6? Isn't it C8T6 instead?

AntonioFromBrazil commented 4 years ago

It is a C8T6 but it has 128K according to ST Flash Load Demonstrator program... If I compile the skretch using the ST core it recognizes 128k but issues hundreds of error messages regarding to libraries... It is really confuse

JiriBilek commented 4 years ago

Then try to flash some random 128K into the chip and verify it. Not every C8T6 has 128K.

stevstrong commented 4 years ago

Make a simple sketch to demonstrate the issue, include a constant string of 70kB size to the sketch, and send it to serial.

AntonioFromBrazil commented 4 years ago

ôoops.... Please accept my apologize. The board is a fake one and actually it does not have 128k but only 64k. If you tell to compiller your board have some amount of memory, it believes you but crashs after compilation... Thanks anyway