70D/EOSM: hw_test hardware diagnostic module#271
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I built a hardware diagnostic module that runs 35 tests on the 70D. I created this to verify that all the subsystems I was working on actually functioned on the real camera.
The tests cover: camera model detection, memory allocation, SD card file I/O, firmware version, hardware register access via shamem_read, timer accuracy, display system, semaphore sync, SD write benchmark, register dumps across 11 categories, dual ISO CMOS tables, PTPIP stub validation, call() dispatch, and factory calibration function probes.
Results go to both the LCD and ML/LOGS/HW_TEST.LOG. All operations are read-only for hardware registers. No dangerous call() entries are used.
The module is also ported to EOSM with proper #ifdef guards (WiFi tests disabled on EOSM, own RAM regions).