AM3359: 最新的SDK9.01中，pru-adc-1.0的例子，make不通过，编译器错误

这个例子在SDK6.03的时候，是好用的，官方的例子也都是9.01之前的方法，而9.01在make pru-adc的时候，并没有这个选项。

所以我在编译的时候，增加了Makefile_pru-adc的文件，内容如下：

# PRU-ADC build targets
export TI_SDK_PATH_603=/home/lixiao/ti_sdk6.03
export TI_SDK_PATH_901=/home/lixiao/ti_sdk9.01

export LINUX_DEVKIT_PATH_603=$(TI_SDK_PATH_603)/linux-devkit
export LINUX_DEVKIT_PATH_901=$(TI_SDK_PATH_901)/linux-devkit

SDK_PATH_TARGET_603=$(LINUX_DEVKIT_PATH_603)/sysroots/armv7at2hf-neon-oe-linux-gnueabi
SDK_PATH_TARGET_901=$(LINUX_DEVKIT_PATH_901)/sysroots/armv7at2hf-neon-oe-linux-gnueabi

pru-adc:
	@echo =================================
	@echoBuilding PRU-ADC
	@echo =================================
	@cd example-applications; cd `find . -name "*pru-adc*"`; \
		make PRU_CGT=$(LINUX_DEVKIT_PATH_901)/sysroots/x86_64-arago-linux/usr/share/ti/cgt-pru PRU_SSP=$(SDK_PATH_TARGET_901)/usr

pru-adc_clean:
	@echo =================================
	@echoCleaning PRU-ADC
	@echo =================================
	@cd example-applications; cd `find . -name "*pru-adc*"`; \
		make PRU_CGT=$(LINUX_DEVKIT_PATH_901)/sysroots/x86_64-arago-linux/usr/share/ti/cgt-pru PRU_SSP=$(SDK_PATH_TARGET_901)/usr clean

pru-adc_install:
	@echo ===================================================
	@echoInstalling PRU-ADC
	@echo ===================================================
	@if [ ! -d $(DESTDIR) ] ; then \
		echo "The extracted target filesystem directory doesn't exist."; \
		echo "Please run setup.sh in the SDK's root directory and then try again."; \
		exit 1; \
	fi
	@install -d $(DESTDIR)/lib/firmware/pru;
	@install -d $(DESTDIR)/usr/bin;
	@cd example-applications; cd `find . -name "*pru-adc*"`; \
	install -m 0644 ./PRU_ADS8688_Controller/gen/PRU_ADS8688_Controller.out \
		$(DESTDIR)/lib/firmware/pru; \
	install -m 0644 ./PRU_ADS8688_Interface/gen/PRU_ADS8688_Interface.out \
		$(DESTDIR)/lib/firmware/pru; \
	install -m 755 ./ARM_User_Space_App/gen/ARM_User_Space_App.out $(DESTDIR)/usr/bin/pru-adc-arm-app.out

但是编译的时候，出现 

arm_user_space_app.c: 在函数‘capture_func’中:
arm_user_space_app.c:163:25: 编译器内部错误： 非法指令
163 | min[j] = (float)cur_min * 0.0003125;
| ^~~
0x7b985e64251f ???
./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0

PRU的两个核应该是编译过了，但是这个arm_user_space_app.c的文件，编译不过，经常是编译器内部错误，这个是什么原因呢。

还有SDK9.01的时候，PRU如何配置，我在内核配置和设备树配置中启用PRU之后，可以在 /sys/class/remoteproc 下出现：

remoteproc0 remoteproc1 remoteproc2

但是在设置PRU核状态的时候，却设置不了

root@am335x-kztop:/sys/class/remoteproc/remoteproc1# echo 'start' > state
-sh: echo: write error: No such device or address

出现下面的错误，我想知道，在SDK9.01下，内核和设备树怎么配置PRU？

user5850447：

[ 211.618533] remoteproc remoteproc1: powering up 4a334000.pru[ 211.704485] remoteproc remoteproc1: Booting fw image am335x-pru0-fw, size 72904-sh: echo: write error: No such device or address[ 211.727648] pru-rproc 4a334000.pru: error -ENXIO: IRQ vring not found[ 211.727682] remoteproc remoteproc1: unable to get vring interrupt, status = -6