Fix: erroneous DLC set when transmitting more than 8 bytes. #8
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facchinm
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Nov 6, 2024
Enabling them crashes the m7 fw with this stacktrace #0 HardFault_Handler () at src/stm32h7xx_it.c:47 #1 <signal handler called> #2 0x08004770 in __metal_mutex_acquire (mutex=0x24003318 <rvdev+88>) at libraries/openamp_arduino/src/metal/system/generic/mutex.h:60 #3 metal_mutex_acquire (mutex=0x24003318 <rvdev+88>) at libraries/openamp_arduino/src/metal/mutex.h:59 #4 rpmsg_virtio_rx_callback (vq=0x240070d0) at libraries/openamp_arduino/src/rpmsg_virtio.c:548 #5 0x080041da in rproc_virtio_notified (vdev=0x24007058, notifyid=notifyid@entry=0) at libraries/openamp_arduino/src/remoteproc_virtio.c:341 #6 0x08003b48 in MAILBOX_Poll (vdev=<optimized out>) at libraries/openamp_arduino/src/mailbox_hsem_if.c:122 #7 0x08003d1e in OPENAMP_check_for_message () at libraries/openamp_arduino/src/openamp.c:166 #8 0x080013e2 in HSEM1_IRQHandler () at src/rpc.c:116 #9 <signal handler called> #10 0x080013a8 in serial_rpc_ready () at src/rpc.c:97 #11 0x08003596 in try_execute_m4_app () at src/m4_util.c:74 #12 0x0800088a in main () at src/main.c:124 Investigate a proper fix
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Not exactly high-performance, but can be replaced by a look-up table later. Why ST performs such an atrocity is beyond me anyway (talking about this and this).