diff options
author | Daniel Friesel <daniel.friesel@uos.de> | 2020-08-31 15:24:50 +0200 |
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committer | Daniel Friesel <daniel.friesel@uos.de> | 2020-08-31 15:24:50 +0200 |
commit | ae3acc651a459500bc11ba938607875c6ae21f3a (patch) | |
tree | 3a1d74bad3a4f7ebc3b5bb8bf6a021b0c642b092 /src/app/transactiontest/util.S | |
parent | b85efb34524451b47146badfc2fd25bef8d90926 (diff) |
msp430fr: rename spi_b to spi to be consistent with other architectures
Diffstat (limited to 'src/app/transactiontest/util.S')
-rw-r--r-- | src/app/transactiontest/util.S | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/app/transactiontest/util.S b/src/app/transactiontest/util.S index 1a12736..ea298b6 100644 --- a/src/app/transactiontest/util.S +++ b/src/app/transactiontest/util.S @@ -6,6 +6,7 @@ #define SRAM_SIZE 4096 ; SRAM and stack pointer backup space +; two backup areas allow for consistency in case of a power loss during backup sp_backup1: .space 2 sram_backup1: @@ -20,7 +21,8 @@ sram_backup2: backup_cookie: .space 2 -; save entire SRAM and CPU register state to persistent FRAM +; save entire SRAM and CPU register state to persistent FRAM. +; Must be called with interrupts disabled asm_save_all: ; r4 to r11 are callee saved -> push them to the stack. @@ -65,9 +67,8 @@ save_sram_word: ; load entire SRAM and CPU register state from persistent FRAM, ; if it contains valid backup data. Execution will resume at the -; last place where asm_save_all() was called is if nothing in between -; had happened. Does not take possible the state of hardware peripherals -; into account. +; last place where asm_save_all() was called as if nothing in between +; had happened. Does not take the state of hardware peripherals into account. asm_load_all: ; check if we have backup data |