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+--- Thread: EBlink squirrel error on stm32f3 - The index 'ntrfApi' does not exist (/thread-231.html)
EBlink squirrel error on stm32f3 - The index 'ntrfApi' does not exist - jack133 - 13-10-2025
Hello,
I try to programm an Evaluation board with a STM32F303VE and an integrated STLink V2:
https://www.st.com/en/evaluation-tools/stm32303e-eval.html#documentation
When I click on the debugger button under Embitz, I have the following error:
Squirrel Error
The index 'ntrfApi' does not exist
stm32_device[65] in 'stmicro/stm32f3.script'
Even if I try debugging in Power Shell to launch the EBLink alone with this command :
.\eblink.exe -v 7 -I stlink -S stm32 -G
The same error appears:
EBlink version 6.02-[201] by Gerard Zagema
Using EB_SCRIPT_PATH = C:\Program Files (x86)\EmBitz\EBlink\scripts
Interface : STlink
Interface USB# : 36FF71063447313049172557
Interface at 1:40 - <BUS>:<ADDR>
Interface type : STlink/V2
STlink Frmware : V2.J46.S0
Target voltage : 3.21V
Interface speed: 4000KHz
Try DAP_AP 0.
Read CPU id on DAP_AP 0
CPU id found (0x410FC241)
Target selected: Cortex-M
Target detected: Cortex-M4 (r0p1) with FPv4_SP
HW breakpoints : 6
HW watchpoints : 4
Fault unwind : Active (level 2)
Search script stm32.script in path: C:\Program Files (x86)\EmBitz\EBlink\scripts
Script found: stm32.script
Squirrel debug main©[17] {stm32.script}
Squirrel debug main®[167] {stm32.script}
Squirrel debug ebMain©[62] {stm32.script}
Squirrel debug findDevice©[90] {stm32.script}
STmicro device : 0x446
Search script stmicro/stm32f3.script in path: C:\Program Files (x86)\EmBitz\EBlink\scripts
Script found: stmicro/stm32f3.script
Squirrel debug main©[15] {stmicro/stm32f3.script}
Squirrel debug main®[104] {stmicro/stm32f3.script}
Squirrel debug stm32_device©[56] {stmicro/stm32f3.script}
Squirrel debug stm32_device(e)[65] {stmicro/stm32f3.script}
Squirrel debug stm32_device®[65] {stmicro/stm32f3.script}
Squirrel debug findDevice®[113] {stm32.script}
Catch{..} at ebMain[68] in "stm32.script"
Squirrel Error
The index 'ntrfApi' does not exist
stm32_device[65] in 'stmicro/stm32f3.script'
Squirrel debug ebMain®[69] {stm32.script}
What can I do to correct this error ?
Thank you,
Stéphane
RE: EBlink squirrel error - embitz - 14-10-2025
Well, as the error already mention, I made a typo.
In the script file stm32f3.script on line 65 change ntrfApi.write(DBGMCU_APB1_FZ, 0x00001800) into intrfApi.write(DBGMCU_APB1_FZ, 0x00001800)
Thanks for the report.
On github I already changed this.
https://github.com/EmBitz/EBlink-scripts
If you need help with finding the script file, please report your OS so I can direct you to the right location.