manual:ports:armcm0_stm32g0
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manual:ports:armcm0_stm32g0 [2019/08/09 12:07] voorburg [Vector table location] |
manual:ports:armcm0_stm32g0 [2019/09/24 22:12] 127.0.0.1 external edit |
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| The user program must reserve space for this 32-bit checksum value. To reserve this space, simply enter one extra dummy entry into the interrupt vector table. This reserves space for the checksum at memory address: flash base address + flash reserved for bootloader + FLASH_VECTOR_TABLE_CS_OFFSET. Refer to the demo program for an example. | The user program must reserve space for this 32-bit checksum value. To reserve this space, simply enter one extra dummy entry into the interrupt vector table. This reserves space for the checksum at memory address: flash base address + flash reserved for bootloader + FLASH_VECTOR_TABLE_CS_OFFSET. Refer to the demo program for an example. | ||
| - | {{:manual:ports:stm32l4_checksum_reservation.png?|}} | + | {{:manual:ports:stm32g0_checksum_reservation.png?|}} |
| ===== Stackpointer initialization ===== | ===== Stackpointer initialization ===== | ||
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| After reset, the bootloader gets started first and, if a valid user program is present, it is the bootloader's responsibility to start the user program. This unfortunately means that the automatic initialization of the CPU's stackpointer register does not work for the user program. The user program therefore needs to explicitly set the initial value of the CPU's stackpointer register in the reset interrupt service routine. Refer to the demo program for an example. | After reset, the bootloader gets started first and, if a valid user program is present, it is the bootloader's responsibility to start the user program. This unfortunately means that the automatic initialization of the CPU's stackpointer register does not work for the user program. The user program therefore needs to explicitly set the initial value of the CPU's stackpointer register in the reset interrupt service routine. Refer to the demo program for an example. | ||
| - | {{:manual:ports:stm32l4_stackpointer_init.png?|}} | + | {{:manual:ports:stm32g0_stackpointer_init.png?|}} |
manual/ports/armcm0_stm32g0.txt · Last modified: 2022/11/07 11:29 by voorburg
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