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fix: three stack overflows crashing firmware on TimerCamera-F

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loopTask: cv_init() created a CVState{} temporary (9KB background
array) on the stack — fixed by initializing members directly.

cam task: cv_process() had uint8_t fg[CV_PIXELS] (9KB) as a local
variable — made static, matching the existing fg_copy fix.

cam task stack bumped from 4096 to 8192 for headroom.

Also: switch to 4MB OTA partition table (TimerCamera-F has 4MB flash,
not 8MB), add CONFIG_ARDUINO_LOOP_STACK_SIZE=16384 build flag,
upload_speed=115200 and --no-stub for reliable CH340 flashing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Peter Woolery
2026-04-15 10:58:06 -07:00
parent 265fb727ab
commit 4b671843b3
4 changed files with 21 additions and 6 deletions
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6
firmware/partitions_4mb_ota.csv Normal file
View File

@@ -0,0 +1,6 @@
# Name, Type, SubType, Offset, Size
nvs, data, nvs, 0x9000, 0x5000
otadata, data, ota, 0xe000, 0x2000
app0, app, ota_0, 0x10000, 0x180000
app1, app, ota_1, 0x190000, 0x180000
spiffs, data, spiffs, 0x310000, 0xF0000
1 # Name Type SubType Offset Size
2 nvs data nvs 0x9000 0x5000
3 otadata data ota 0xe000 0x2000
4 app0 app ota_0 0x10000 0x180000
5 app1 app ota_1 0x190000 0x180000
6 spiffs data spiffs 0x310000 0xF0000