Hello,
the FlexSPI memory map is defined as
Is it correct that flash A1 will start at ARM Platform Memory Map 0x6000_0000?
If I develop an application with two flash devices, each 8 MByte, a second flash A2 will start at FlexSPI address 0x0080_0000 which will be ARM memory address 0x6080_0000.
If I now decide to remove flash A2 and use flash B1 instead, the FlexSPI address for flash B1 will be 0x0080_0000 and ARM memory address 0x6080_0000.
In this case the used address range will be the same as for flash A2, is this correct?
Kind regards,
Stefan
Solved! Go to Solution.
Thanks so much for your updated information.
Now answer your original questions:
1. Is it correct that flash A1 will start at ARM Platform Memory Map 0x6000_0000?
Answer: the base address is 0x60000000
2. If I now decide to remove flash A2 and use flash B1 instead, the FlexSPI address for flash B1 will be 0x0080_0000 and ARM memory address 0x6080_0000.
In this case the used address range will be the same as for flash A2, is this correct?
Answer: Yes, FA2_SIZE is 0 is ou don't use the A2.
Wish it helps you!
If you still have questions about it, please kindly let me know.
Have a great day,
Kerry
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Hi Stefan Mitterhauser ,
Please tell me which RT chip you are using? Please tell me your RT chip partnumber, then I can help you to check more details, thanks.
Have a great day,
Kerry
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Hello Kerry,
I am using RT1020-EVK with PIMXRT1021DAG5A and additional ISSI QSPI flash memories.
Kind regards,
Stefan
Thanks so much for your updated information.
Now answer your original questions:
1. Is it correct that flash A1 will start at ARM Platform Memory Map 0x6000_0000?
Answer: the base address is 0x60000000
2. If I now decide to remove flash A2 and use flash B1 instead, the FlexSPI address for flash B1 will be 0x0080_0000 and ARM memory address 0x6080_0000.
In this case the used address range will be the same as for flash A2, is this correct?
Answer: Yes, FA2_SIZE is 0 is ou don't use the A2.
Wish it helps you!
If you still have questions about it, please kindly let me know.
Have a great day,
Kerry
-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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Thank you Kerry!
Kind regards,
Stefan