Unterschiede
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Beide Seiten der vorigen Revision Vorhergehende Überarbeitung | Nächste ÜberarbeitungBeide Seiten der Revision | ||
artikel:nav_common:omap5948:start [Wed. 24.07.2019 10:47] – go4it | artikel:nav_common:omap5948:start [Wed. 24.07.2019 10:53] – [Anbindung des Flash-Speicher] go4it | ||
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Über das '' | Über das '' | ||
+ | CS0 and CS3 address decoding (address in the TC memory mapping) can be swapped through the BM bit field in the EMIFS global control register. When the BM bit field is set, CS3 is activated in the 0000: | ||
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+ | The BM bit is sampled at reset depending on two factors. If MPU_BOOT (ball J20) is 1 and the device type is emulation then BM resets to 1. Otherwise, BM resets to 0. | ||
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+ | Thus, the boot is executed from CS0 or from CS3 attached memories. During normal execution, BM can be changed dynamically but obvious software precautions are required to prevent system crash. | ||
===== Anbindung des SDRAM ===== | ===== Anbindung des SDRAM ===== | ||