Difference between revisions of "Multi-core"
From Wiki at Neela Nurseries
m (NXP mailbox HAL files) |
(Size of data block which mailbox can send) |
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modules/hal/nxp/mcux/mcux-sdk/drivers/mailbox/fsl_mailbox.h | modules/hal/nxp/mcux/mcux-sdk/drivers/mailbox/fsl_mailbox.h | ||
| + | |||
| + | Size of data block which mailbox can send: | ||
| + | |||
| + | <pre> | ||
| + | $ grep -nr MCUX_IPM_DATA_REGS ./* | ||
| + | ./nexus-gateway-firmware/samples/ipm_mcux/build/zephyr/zephyr.lst:8385: return MCUX_IPM_DATA_REGS*sizeof(uint32_t); | ||
| + | ./nexus-gateway-firmware/samples/ipm_mcux/build/zephyr/zephyr.lst:8433: if (size > MCUX_IPM_DATA_REGS * sizeof(uint32_t)) { | ||
| + | ./nexus-gateway-firmware/samples/ipm_mcux/build/ipm_mcux_remote-prefix/src/ipm_mcux_remote-build/zephyr/zephyr.lst:6266: return MCUX_IPM_DATA_REGS*sizeof(uint32_t); | ||
| + | ./nexus-gateway-firmware/samples/ipm_mcux/build/ipm_mcux_remote-prefix/src/ipm_mcux_remote-build/zephyr/zephyr.lst:6314: if (size > MCUX_IPM_DATA_REGS * sizeof(uint32_t)) { | ||
| + | ./tags:6361980:MCUX_IPM_DATA_REGS zephyr/drivers/ipm/ipm_mcux.c 16;" d file: | ||
| + | ./zephyr/drivers/ipm/ipm_mcux.c:16:#define MCUX_IPM_DATA_REGS 1 | ||
| + | ./zephyr/drivers/ipm/ipm_mcux.c:82: uint32_t data32[MCUX_IPM_DATA_REGS]; /* Until we change API | ||
| + | ./zephyr/drivers/ipm/ipm_mcux.c:94: if (size > MCUX_IPM_DATA_REGS * sizeof(uint32_t)) { | ||
| + | ./zephyr/drivers/ipm/ipm_mcux.c:117: return MCUX_IPM_DATA_REGS*sizeof(uint32_t); | ||
| + | Binary file ./zephyr/drivers/ipm/.ipm_mcux.c.swp matches | ||
| + | <?pre> | ||
<!-- comentario --> | <!-- comentario --> | ||
Revision as of 05:39, 16 December 2022
In Zephyr 3.2.0 see `zephyr/include/zephyr/drivers/ipm.h` for some starting points to understand inter-processor messaging.
One of two or three Zephyr 3.2.0 sample apps which touch on multi-core firmware design:
- ./subsys/ipc/openamp/boards/lpcxpresso55s69_cpu0.overlay
^ Zephyr sys init run levels
Likely for another local article, excerpt from `zephyr/include/zephyr/init.h`:
18 /* 19 * System initialization levels. The PRE_KERNEL_1 and PRE_KERNEL_2 levels are 20 * executed in the kernel's initialization context, which uses the interrupt 21 * stack. The remaining levels are executed in the kernel's main task. 22 */ 23 24 #define _SYS_INIT_LEVEL_PRE_KERNEL_1 0 25 #define _SYS_INIT_LEVEL_PRE_KERNEL_2 1 26 #define _SYS_INIT_LEVEL_POST_KERNEL 2 27 #define _SYS_INIT_LEVEL_APPLICATION 3 28 29 #ifdef CONFIG_SMP 30 #define _SYS_INIT_LEVEL_SMP 4 31 #endif
^ General MCU bring-up
NXP LPC55S69 system clock settings HAL source file:
$ vi ./hal/nxp/mcux/mcux-sdk/devices/LPC55S69/drivers/fsl_clock.h
^ NXP mailbox HAL files
modules/hal/nxp/mcux/mcux-sdk/drivers/mailbox/fsl_mailbox.h
Size of data block which mailbox can send:
$ grep -nr MCUX_IPM_DATA_REGS ./*
./nexus-gateway-firmware/samples/ipm_mcux/build/zephyr/zephyr.lst:8385: return MCUX_IPM_DATA_REGS*sizeof(uint32_t);
./nexus-gateway-firmware/samples/ipm_mcux/build/zephyr/zephyr.lst:8433: if (size > MCUX_IPM_DATA_REGS * sizeof(uint32_t)) {
./nexus-gateway-firmware/samples/ipm_mcux/build/ipm_mcux_remote-prefix/src/ipm_mcux_remote-build/zephyr/zephyr.lst:6266: return MCUX_IPM_DATA_REGS*sizeof(uint32_t);
./nexus-gateway-firmware/samples/ipm_mcux/build/ipm_mcux_remote-prefix/src/ipm_mcux_remote-build/zephyr/zephyr.lst:6314: if (size > MCUX_IPM_DATA_REGS * sizeof(uint32_t)) {
./tags:6361980:MCUX_IPM_DATA_REGS zephyr/drivers/ipm/ipm_mcux.c 16;" d file:
./zephyr/drivers/ipm/ipm_mcux.c:16:#define MCUX_IPM_DATA_REGS 1
./zephyr/drivers/ipm/ipm_mcux.c:82: uint32_t data32[MCUX_IPM_DATA_REGS]; /* Until we change API
./zephyr/drivers/ipm/ipm_mcux.c:94: if (size > MCUX_IPM_DATA_REGS * sizeof(uint32_t)) {
./zephyr/drivers/ipm/ipm_mcux.c:117: return MCUX_IPM_DATA_REGS*sizeof(uint32_t);
Binary file ./zephyr/drivers/ipm/.ipm_mcux.c.swp matches
<?pre>
