RT-Thread Studio 创建的STM32G474RB项目下载问题，程序超过64K下载失败，芯片FLASH有128K

发布于 2023-04-21 17:01:26 浏览：805 订阅该版

RT-Thread Studio 创建的STM32G474RB项目下载问题，编译后bin程序超过64K下载失败,小于64K时可以成功下载，芯片FLASH有128K.
补充：使用JLINK下载时大于64K下载失败，使用 DAP-LINK时大于64K下载成功。

如下代码：
通过调整 `static const char data[1024 *7]` 改变编译后的bind大小可以方便复现描述现象。

求助：如何解决上述下载问题。

```c
#include <rtthread.h>

#define DBG_TAG "main"
#define DBG_LVL DBG_LOG
#include <rtdbg.h>

static const char data[1024 *7] = {0};

int main(void)
{
    int count = 1;

while (count++)
    {
        LOG_D("Hello RT-Thread!");
        rt_thread_mdelay(1000);
        for (int var = 0; var < 1000; ++var)
        {
            rt_kprintf("%d \r\n",data[var]);
        }
    }

return RT_EOK;
}
```

以下是JLINK的下载信息，这个信息是STM32G474CCT6的下载信息，芯片256K，同样超过一半 128K时JLINK会出现下载失败。DAP-LINK 超过一半时下载正常。

```

开始下载程序：2023-04-22 13:54:48
Download Start Address: 0x08000000 
e:\RT-ThreadStudio>"E:/RT-ThreadStudio/repo/Extract/Debugger_Support_Packages/SEGGER/J-Link/v7.50a\JLink.exe" -device STM32G474CC -ExitOnError -CommanderScript E:\RT-ThreadStudio\workspace/.metadata/Temp/rtthread_download_init.jlink 
SEGGER J-Link Commander V7.50a (Compiled Jul  8 2021 18:22:32)
DLL version V7.50a, compiled Jul  8 2021 18:21:11
J-Link Commander will now exit on Error
J-Link Command File read successfully.
Processing script file...
J-Link connection not established yet but required for command.
Connecting to J-Link via USB...O.K.
Firmware: J-Link V11 compiled Apr 27 2041 16:36:21
Hardware version: V11.00
S/N: 941000024
License(s): GDB, JFlash, FlashDL, RDI, FlashBP
VTref=3.296V
Selecting SWD as current target interface.
Device "STM32G474CC" selected.
Selecting 1000 kHz as target interface speed
Target connection not established yet but required for command.
Device "STM32G474CC" selected.
Connecting to target via SWD
Found SW-DP with ID 0x2BA01477
Found SW-DP with ID 0x2BA01477
DPIDR: 0x2BA01477
Scanning AP map to find all available APs
AP[1]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS-M7
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
Cortex-M4 identified.
Without any give address range, Erase Chip will be executed
Erasing device...
J-Link: Flash download: Total time needed: 0.231s (Prepare: 0.169s, Compare: 0.000s, Erase: 0.054s, Program: 0.000s, Verify: 0.000s, Restore: 0.007s)
J-Link: Flash download: Total time needed: 0.153s (Prepare: 0.107s, Compare: 0.000s, Erase: 0.038s, Program: 0.000s, Verify: 0.000s, Restore: 0.007s)
J-Link: Flash download: Total time needed: 0.126s (Prepare: 0.103s, Compare: 0.000s, Erase: 0.014s, Program: 0.000s, Verify: 0.000s, Restore: 0.007s)
J-Link: Flash download: Total time needed: 0.128s (Prepare: 0.105s, Compare: 0.000s, Erase: 0.014s, Program: 0.000s, Verify: 0.000s, Restore: 0.008s)
Erasing done.
Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
PC = FFFFFFFE, CycleCnt = 00000000
R0 = 00000000, R1 = 00000000, R2 = 00000000, R3 = 00000000
R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = 00000000
R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000
R12= 00000000
SP(R13)= FFFFFFFC, MSP= FFFFFFFC, PSP= 00000000, R14(LR) = FFFFFFFF
XPSR = 01000000: APSR = nzcvq, EPSR = 01000000, IPSR = 000 (NoException)
CFBP = 00000000, CONTROL = 00, FAULTMASK = 00, BASEPRI = 00, PRIMASK = 00
FPS0 = 00000000, FPS1 = 00000000, FPS2 = 00000000, FPS3 = 00000000
FPS4 = 00000000, FPS5 = 00000000, FPS6 = 00000000, FPS7 = 00000000
FPS8 = 00000000, FPS9 = 00000000, FPS10= 00000000, FPS11= 00000000
FPS12= 00000000, FPS13= 00000000, FPS14= 00000000, FPS15= 00000000
FPS16= 00000000, FPS17= 00000000, FPS18= 00000000, FPS19= 00000000
FPS20= 00000000, FPS21= 00000000, FPS22= 00000000, FPS23= 00000000
FPS24= 00000000, FPS25= 00000000, FPS26= 00000000, FPS27= 00000000
FPS28= 00000000, FPS29= 00000000, FPS30= 00000000, FPS31= 00000000
FPSCR= 00000000
Downloading file [E:\RT-ThreadStudio\workspace\STM32G474RB-TEST05\Debug\rtthread.bin]...
Writing target memory failed.
Script processing completed.
J-Link: Flash download: Bank 0 @ 0x08000000: 1 range affected (131072 bytes)
J-Link: Flash download: Total: 2.291s (Prepare: 0.195s, Compare: 0.036s, Erase: 0.000s, Program & Verify: 1.974s, Restore: 0.085s)
J-Link: Flash download: Program & Verify speed: 64 KiB/s
执行完毕, 耗时：7501ms.

```