I have a full working project targeted to touchGFX 4.20 (compile and run fine). I've tried to upgrade to 4.21.4 but I have the following linker error:
"Error: L6216E: Cannot use base/limit symbols for non-contiguous section .ARM.exidx"
The migrating procedure is the following:
open the .ioc file of the project and migrate touchGFX to 4.21.4 - generate project files
open the project with touchGFX designer and save
open in MDK and compile ==> I see the linker error (If I recompile the project before the migration, it just run fine)
Some project info:
microcontroller: STM32F750N8H6
IDE: keil mdk 5.37
ARM compiler: 6.18
cube mx: 6.8.1
Scatter file:
; *************************************************************
; *** Scatter-Loading Description File generated by uVision ***
; *************************************************************
LR_ROM1 0x90000000 0x01000000 { ; load region size_region
ER_ROM1 0x90000000 0x01000000 { ; load address = execution address
*.o (RESET, +First)
*(InRoot$$Sections)
.ANY (+RO)
.ANY (+XO)
}
; Execute main in the RAM_ITCM (16k)
; NOTE: if Keil finds that the load region (LR_***) value settled by the user is different from
; execute region (ER_YYY) value it generates a little routine that copy the code from load region
; to Execute region and then allows the CPU to jump to the new region to execute the code (it jumps to
; execute region address). Here the load region is 0x90000000 (internal flash throgh TCM ) and the
; execute region is 0x00000000 (internal RAM: RAM-ITCM).
ER_RAMITCM 0x00000000 0x4000 {
main.o
stm32f7xx_it.o
stm32f7xx_hal.o
stm32f7xx_hal_ltdc.o
stm32f7xx_hal_dma2d.o
STM32DMA.o
TouchGFXGeneratedHAL.o
TouchGFXHAL.o
app_touchgfx.o
OSWrappers.o
stm32f7xx_hal_hcd.o
usbh_core.o
usb_host.o
}
;RW_IRAM1 0x20000000 0x00050000 { ; RW data
; .ANY (+RW +ZI)
;}
; Added new region
DMA_BUFFER 0x20000000 0x0400 { ; 1024byte - DTCM ram parte 1 - non cachable - usato per buffer dma
*(.dma_buffer)
}
RW_IRAM1 0x20000400 0x0000FC00 { ; RW data - DTCM ram parte 2 - non cachable
.ANY (+RW +ZI)
}
; Added new region
TouchGFX_Framebuffer 0x20010000 0x0003FC20 { ; 3FC20 - non viene abilitata la cache qui - framebuffer
*(TouchGFX_Framebuffer)
}
; Added new region
RW_IRAM2 0x2004FC20 0x03E0 { ; 992byte - non viene abilitata la cache qui
.ANY (+RW +ZI)
}
}
The problem is due to the region that resides in the ITCM-RAM (ER_RAMITCM - for speed up the execution of some code). If I remove it , the project compile fine (obviously without using ITCM ram).
What is quite strange is that, the same project , with the same scatter file, it just run fine with the previous touchGFX (4.20)
