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/Zephyr-latest/doc/develop/languages/c/
Dnewlib.rst80 Newlib implements an internal heap allocator to manage the memory blocks used
81 by the standard dynamic memory management interface functions (for example,
87 requests larger memory chunks to the operating system and has a significantly
88 higher minimum memory requirement compared to that of the Nano Newlib
91 The only interface between the Newlib dynamic memory management functions and
93 Newlib to manage the size of the memory pool reserved for its internal heap
97 the memory pool size change requests from the Newlib and ensures that the
98 Newlib internal heap allocator memory pool size does not exceed the amount of
99 available memory space by returning an error when the system is out of memory.
101 When userspace is enabled, the Newlib internal heap allocator memory pool is
[all …]
/Zephyr-latest/dts/arm/st/h7/
Dstm32h723.dtsi194 sram0: memory@24000000 {
200 sram1: memory@30000000 {
202 compatible = "zephyr,memory-region", "mmio-sram";
203 zephyr,memory-region = "SRAM1";
207 sram2: memory@30004000 {
209 compatible = "zephyr,memory-region", "mmio-sram";
210 zephyr,memory-region = "SRAM2";
214 sram4: memory@38000000 {
216 compatible = "zephyr,memory-region", "mmio-sram";
217 zephyr,memory-region = "SRAM4";
[all …]
Dstm32h757Xi_m7.dtsi17 dtcm: memory@20000000 {
18 compatible = "zephyr,memory-region", "arm,dtcm";
20 zephyr,memory-region = "DTCM";
Dstm32h745Xi_m7.dtsi17 dtcm: memory@20000000 {
18 compatible = "zephyr,memory-region", "arm,dtcm";
20 zephyr,memory-region = "DTCM";
Dstm32h755Xi_m7.dtsi17 dtcm: memory@20000000 {
18 compatible = "zephyr,memory-region", "arm,dtcm";
20 zephyr,memory-region = "DTCM";
/Zephyr-latest/dts/arm/nxp/
Dnxp_rt118x_cm33.dtsi9 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
14 compatible = "zephyr,memory-region", "nxp,imx-itcm";
16 zephyr,memory-region = "ITCM";
20 compatible = "zephyr,memory-region", "nxp,imx-dtcm";
22 zephyr,memory-region = "DTCM";
25 memory: memory@30484000 { label
30 compatible = "zephyr,memory-region", "mmio-sram";
31 zephyr,memory-region = "M7_ITCM";
Dnxp_rt118x_cm33_ns.dtsi9 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
14 compatible = "zephyr,memory-region", "nxp,imx-itcm";
16 zephyr,memory-region = "ITCM";
20 compatible = "zephyr,memory-region", "nxp,imx-dtcm";
22 zephyr,memory-region = "DTCM";
25 memory: memory@20484000 { label
30 compatible = "zephyr,memory-region", "mmio-sram";
31 zephyr,memory-region = "M7_ITCM";
Dnxp_lpc55S2x_common.dtsi13 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
48 sramx: memory@4000000 {
53 sram0: memory@20000000 {
58 sram1: memory@20010000 {
59 compatible = "zephyr,memory-region", "mmio-sram";
61 zephyr,memory-region = "SRAM1";
64 sram2: memory@20020000 {
65 compatible = "zephyr,memory-region", "mmio-sram";
67 zephyr,memory-region = "SRAM2";
70 sram4: memory@20040000 {
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/Zephyr-latest/tests/drivers/retained_mem/api/boards/
Dnrf54l15dk_nrf54l05_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region:
Dnrf54l15dk_nrf54l10_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region:
Dnrf54l20pdk_nrf54l20_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region:
/Zephyr-latest/samples/boards/nordic/system_off/boards/
Dnrf54l15dk_nrf54l05_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region:
Dnrf54l15dk_nrf54l15_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region */
Dnrf54l15dk_nrf54l10_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region:
Dnrf54l20pdk_nrf54l20_cpuapp.overlay3 compatible = "zephyr,memory-region", "mmio-sram";
5 zephyr,memory-region = "RetainedMem";
20 /* Shrink SRAM size to avoid overlap with retained memory region:
/Zephyr-latest/tests/drivers/dma/chan_blen_transfer/boards/
Dnucleo_h743zi.overlay5 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
23 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) )>;
/Zephyr-latest/dts/xtensa/
Ddc233c.dtsi25 sram0: memory@0 {
26 device_type = "memory";
35 rom0: memory@fe000000 {
36 device_type = "memory";
/Zephyr-latest/dts/arm/st/f3/
Dstm32f303X8.dtsi11 ccm0: memory@10000000 {
12 compatible = "zephyr,memory-region", "st,stm32-ccm";
14 zephyr,memory-region = "CCM";
17 sram0: memory@20000000 {
/Zephyr-latest/dts/arm/adi/max32/
Dmax32662.dtsi45 sram1: memory@20004000 {
50 sram2: memory@20008000 {
55 sram3: memory@2000c000 {
60 sram4: memory@20010000 {
65 sram5: memory@20011000 {
70 sram6: memory@20012000 {
75 sram7: memory@20013000 {
/Zephyr-latest/dts/arm/ti/
Dcc1352r.dtsi11 sram0: memory@20000000 {
26 compatible = "zephyr,memory-region";
28 zephyr,memory-region = "FLASH_CCFG";
Dcc1352r7.dtsi11 sram0: memory@20000000 {
26 compatible = "zephyr,memory-region";
28 zephyr,memory-region = "FLASH_CCFG";
/Zephyr-latest/tests/drivers/flash_simulator/flash_sim_reboot/boards/
Dmps2_an385.overlay5 compatible = "zephyr,memory-region", "mmio-sram";
7 zephyr,memory-region = "FlashSim";
17 memory-region = <&sram_203F0000>;
/Zephyr-latest/dts/common/nordic/
Dnrf5340_cpuapp_partition.dtsi6 * Default memory partitioning for nRF5340 application CPU.
83 * Of the memory allocated to the Non-Secure image
85 * - 64 kB allocated to shared memory (sram0_shared).
88 reserved-memory {
94 /* Zephyr image(s) memory */
99 /* Secure image memory */
104 /* Non-Secure image memory */
109 /* Non-Secure image memory */
/Zephyr-latest/tests/drivers/spi/spi_loopback/boards/
Dmimxrt1180_evk_mimxrt1189_cm7.overlay9 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
18 zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) )>;
/Zephyr-latest/tests/drivers/coredump/coredump_api/boards/
Dqemu_riscv32.overlay13 memory-regions = <0x85000000 0x4>,
22 memory-regions = <0x86000000 0xC>;
29 memory-regions = <0x0 0x4>;

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