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mkobetic
commented
Apr 13, 2026
| @@ -1,22 +1,3 @@ | |||
| irq_vektor_porta: | |||
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This was just copied from LM4, and doesn't apply to RA4
mkobetic
commented
Apr 13, 2026
| IRQ_VECTORS: | ||
| .include "arm/vectors.s" | ||
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| @ Special interrupt handlers for this particular chip: |
mkobetic
commented
Apr 13, 2026
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| STARTDICT | ||
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| .include "isr.s" |
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I moved this after STARTDICT, because if these files add ARM_CONSTANTS, they will fail if run before STARTDICT.
mkobetic
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Apr 13, 2026
| .word RAM_upper_returnstack @ 00: Stack top address | ||
| .word PFA_COLD+1 @ 01: Reset Vector +1 wegen des Thumb-Einsprunges | ||
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| .word nullhandler+1 @ 02: NMI |
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I declared nullhandler and faulthandler as .thumb_funcs above so no +1 necessary anymore.
mkobetic
commented
Apr 14, 2026
| # SCI1 Pins | ||
| .equ RA4M1_P501PFS, 0x40040940 + 4 * 1 @ TXD1 | ||
| .equ RA4M1_P502PFS, 0x40040940 + 4 * 2 @ RXD1 | ||
| .equ RA4_P501PFS, 0x40040940 + 4 * 1 @ TXD1 |
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shortening the prefix to just RA4_
mkobetic
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Apr 14, 2026
| # Ref: Renesas RA4M1 User Manual: 2.9 SysTick System Timer | ||
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| ARM_CONSTANT "SYST_CSR", SYST_CSR, 0xE000E010 | ||
| ARM_CONSTANT "ARM_SYST_CSR", ARM_SYST_CSR, 0xE000E010 |
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Adding ARM_ prefix to distinguish ARM features from RA4 features
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