WMXZ-EU

Results 8 issues of WMXZ-EU

Added modifications from https://forum.pjrc.com/threads/69460-Builtin-Sd-Card-Teensy-4-1-SD-begin()-errors?p=333363&viewfull=1#post333363

Allow use of 6dB attenuation

all additional attenuation by 6 dB

in dspinst.h there is a typo you may correct when convenient comments to function multiply_accumulate_32x32_rshift32_rounded and similar states // computes sum + (((int64_t)a[31:0] * (int64_t)b[31:0] + 0x8000000) >> 32) the...

suggest that available() returns block count instead of Boolean "count>0" This allows a better control on how many blocks are used for rms e.g. by using something like while((nblk=rms.available())

Allow multiple parameters for events

allow SDFat open modes

duplicate

change usb_desc.c/h for MTPDISK and MTPDISK_SERIAL for both Teensy3 and Teensy4 MTPDISK_SERIAL need own PID compared to previous PR usb_mtp.c/h is not in core but bundled in user library