[ststm32]Can not upload bin throw the jlink

[kiraversace]

There is my question, I use STM32L476RG in my personal project, under the macos, the PCB board is designed by myself

but based on the Nucleo, here is my ini file:

I use the jlink-EDU, when I upload my program always be failed like this:

I tried so many times, at last I find a solution, but i think it’s not right,
I open the SEGGER J-Flash Lite and click the Erase Chip button, then I upload the program in VSCODE, and it will be succeed, but I don’t know why? And how it works?

Could you help me?

[maxgerhardt]

Seems like write protection? [SOLVED] STM32L052 failed to erase sectors - J-Link/Flasher related - SEGGER - Forum

[manuelbl]

I note that your are writing to address 0x00000000 with the J-Flash Lite and to address 0x08000000 with PlatformIO/OpenOCD. Depending on the BOOT0 and BOOT1, 0x00000000 can be aliased to 0x08000000 or it can point somewhere else. Could that be the difference? What are the BOOT0 and BOOT1 levels?

[kiraversace]

thank you for your replay .
boot0 connected 10k resistor to the ground ,and boot1 leave it float

[kiraversace]

i dont think its the problem

[kiraversace]

OK
I find the problem, I use the wrong code, the pointer is wrong. Sorry
#include <mod_lora_rak.h>

Mod_LoRa_RAK::Mod_LoRa_RAK(HardwareSerial &_serial, int _pwr_en_pin, int _reset_pin)
{
	*at_serial = &_serial;
	pwr_en_pin = _pwr_en_pin;
	rst_pin    = _reset_pin;

	rssi = 0;
	snr  = 0;

	mod_response = " ";
}

look at the *at_serial, I should change it to at_serial