Observed during investigation of
https://github.com/ARMmbed/mbed-os/issues/4246 - DNS queries sent
the entire buffer, not just the bit filled in.
Inefficient, especially for 6LoWPAN, and a security hole - the trailing
data could be previously-used heap.
targets/targets.json already added MCU_LPC11U35_501 as an extra label
but it didn't have LPC11U35_501 (without the MCU_ prefix). Both of
these target names are used as folder names to organize files
specific to this device. For example the LPC11U35.ld linker script used
by GCC_ARM for this target is located in a TARGET_LPC11U35_501 folder.
I switched to using inheritance to properly setup the target labels
based on @theotherjimmy comments on PR #4252. Everything in the
XADOW_M0 targe appears to have been copy/pasted from LPC11U35_501
anyway so inheritance seems to be the best way to set the values of
the XADOW_M0 properties.
failing on file allocation / opening during Stream creation.
The consequence was application continues running, but any printf
to the Serial object whose Stream was not properly created
would not show any error (and characters would not show either)
Let's add a check to properly inform user of the error.
Serial implementation uses different vector handlers for sync/async calls respectively. The issue can be reproduced with the following flow:
1. Register sync mode callback with Serial.attach().
2. Sync call with Serial.putc()/getc().
3. Change to async call with Serial.write()/read().
4. Change back to sync call with Serial.putc()/getc().
Now, vector handller is still for async mode, not for sync mode.
To fix it:
1. Introduce internal function serial_enable_interrupt() for both sync/async vector handler enable/disable.
Original HAL function serial_irq_set() is reduced to call it for sync mode vector handler enable/disable.
2. Introduce internal function serial_rollback_interrupt() to roll back sync mode vector handler at end of async transfer.
NXP LPC176x/5x User Manual UM10360 Rev 4.1:
32.3.2.8 RAM used by IAP command handler
Flash programming commands use the top 32 bytes of on-chip RAM. The maximum stack
usage in the user allocated stack space is 128 bytes and it grows downwards.
NXP LPC176x/5x User Manual UM10360 Rev 4.1:
32.3.2.8 RAM used by IAP command handler
Flash programming commands use the top 32 bytes of on-chip RAM. The maximum stack
usage in the user allocated stack space is 128 bytes and it grows downwards.
NXP LPC176x/5x User Manual UM10360 Rev 4.1:
32.3.2.8 RAM used by IAP command handler
Flash programming commands use the top 32 bytes of on-chip RAM. The maximum stack
usage in the user allocated stack space is 128 bytes and it grows downwards.
NXP LPC176x/5x User Manual UM10360 Rev 4.1:
32.3.2.8 RAM used by IAP command handler
Flash programming commands use the top 32 bytes of on-chip RAM. The maximum stack
usage in the user allocated stack space is 128 bytes and it grows downwards.