Difference between revisions of "Lpc"
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(Begin local notes page for NXP LPC family MCUs.) |
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Overview | Overview | ||
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Local notes page for NXP LPC family MCUs. | Local notes page for NXP LPC family MCUs. | ||
| − | == On-chip flash related == | + | == [[#top|^]] On-chip flash related == |
On-chip flash in at least one LPC part gives an error when reads attempted on erased but not written areas of flash. Github Zephyr RTOS issue from 2020: | On-chip flash in at least one LPC part gives an error when reads attempted on erased but not written areas of flash. Github Zephyr RTOS issue from 2020: | ||
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* https://github.com/zephyrproject-rtos/zephyr/issues/24429 | * https://github.com/zephyrproject-rtos/zephyr/issues/24429 | ||
| − | Question, is NXP's proprietary flash firmware driver for on-chip / MCU flash needed for applications which run on LPC but don't use on-chip flash other than for program text? Questions go to Kconfig symbol SOC_FLASH_MCUX and seeming associated device tree node `/soc/peripheral@50000000/flash-controller@34000` . . . | + | Question, is NXP's proprietary flash firmware driver for on-chip / MCU flash needed for applications which run on LPC but don't use on-chip flash other than for program text? Questions go to Kconfig symbol SOC_FLASH_MCUX and seeming associated device tree node `/soc/peripheral@50000000/flash-controller@34000`. A search of Zephyr 3.7.0 source tree shows: |
| + | |||
| + | <pre> | ||
| + | /zephyr$ lgrep flash-controller@34000 | ||
| + | dts/arm/nxp/nxp_lpc55S0x_common.dtsi:78: iap: flash-controller@34000 { | ||
| + | dts/arm/nxp/nxp_lpc55S6x.dtsi:21: iap: flash-controller@34000 { | ||
| + | dts/arm/nxp/nxp_lpc55S1x_common.dtsi:85: iap: flash-controller@34000 { | ||
| + | dts/arm/nxp/nxp_lpc55S2x.dtsi:21: iap: flash-controller@34000 { | ||
| + | dts/arm/nxp/nxp_lpc55S3x_common.dtsi:83: iap: flash-controller@34000 { | ||
| + | dts/arm/nxp/nxp_lpc55S2x_common.dtsi:98: iap: flash-controller@34000 { | ||
| + | dts/arm/nxp/nxp_lpc55S6x_common.dtsi:123: iap: flash-controller@34000 { | ||
| + | </pre> | ||
Latest revision as of 20:56, 19 February 2025
NXP LPC microcontroller
Overview
Local notes page for NXP LPC family MCUs.
On-chip flash in at least one LPC part gives an error when reads attempted on erased but not written areas of flash. Github Zephyr RTOS issue from 2020:
Question, is NXP's proprietary flash firmware driver for on-chip / MCU flash needed for applications which run on LPC but don't use on-chip flash other than for program text? Questions go to Kconfig symbol SOC_FLASH_MCUX and seeming associated device tree node `/soc/peripheral@50000000/flash-controller@34000`. A search of Zephyr 3.7.0 source tree shows:
/zephyr$ lgrep flash-controller@34000
dts/arm/nxp/nxp_lpc55S0x_common.dtsi:78: iap: flash-controller@34000 {
dts/arm/nxp/nxp_lpc55S6x.dtsi:21: iap: flash-controller@34000 {
dts/arm/nxp/nxp_lpc55S1x_common.dtsi:85: iap: flash-controller@34000 {
dts/arm/nxp/nxp_lpc55S2x.dtsi:21: iap: flash-controller@34000 {
dts/arm/nxp/nxp_lpc55S3x_common.dtsi:83: iap: flash-controller@34000 {
dts/arm/nxp/nxp_lpc55S2x_common.dtsi:98: iap: flash-controller@34000 {
dts/arm/nxp/nxp_lpc55S6x_common.dtsi:123: iap: flash-controller@34000 {
