Search found 11 matches

by plamen
Thu Sep 14, 2017 11:34 am
Forum: STM32 Support
Topic: STM32F767 nDBOOT MSP Topic is solved
Replies: 3
Views: 1018

Re: STM32F767 nDBOOT MSP Topic is solved

Thanks!
There is code in crt0_v7m.S that initializes MSP. I added in my Makefile
UADEFS = -DCRT0_FORCE_MSP_INIT=TRUE

and now all seems to be good.
by plamen
Thu Sep 14, 2017 9:58 am
Forum: STM32 Support
Topic: STM32F767 nDBOOT MSP Topic is solved
Replies: 3
Views: 1018

STM32F767 nDBOOT MSP Topic is solved

Hello, I'm using STM32F767I, ChibiOS 17.6.0, arm-none-eabi-gcc 7.1.0 compiler. I'm trying to implement bootloader using nDBOOT and nDBANK option bits, but I'm having buffer overwrite problems. The problem appears to be that in USART interrupt handler the stack pointer of the IRQ handler points somew...
by plamen
Thu Aug 03, 2017 5:27 pm
Forum: Bug Reports
Topic: STM32F767II default CAN3 acceptance filter not properly set Topic is solved
Replies: 1
Views: 789

STM32F767II default CAN3 acceptance filter not properly set Topic is solved

Hello, I'm using ChibiOS_17.6.0, STM32F767II board with enabled all 3 CANs. If I leave CAN3 with the default acceptance filters it won't receive any frames (in contrast CAN1 and CAN2 receive messages). The problem appears to be in hal_can_lld.c, lines 165-173. For CAND3, if there is CAN2 enabled, th...
by plamen
Sat May 13, 2017 6:26 pm
Forum: STM32 Support
Topic: GPT timer
Replies: 2
Views: 744

Re: GPT timer

Thanks!
by plamen
Fri May 12, 2017 2:55 pm
Forum: STM32 Support
Topic: GPT timer
Replies: 2
Views: 744

GPT timer

Hello, I try to measure the width of a pulse using a general purpose timer. The function is invoked as callback to the EXTD1 driver, triggers on EXTI2 event: void _extIRQ(EXTDriver *extp, expchannel_t channel) { if (_edgeChange == 0) { gptStartContinuous(&GPTD5, 0); //greatest possible reset val...
by plamen
Mon May 08, 2017 6:10 am
Forum: STM32 Support
Topic: osDelay(x) behaviour
Replies: 2
Views: 998

Re: osDelay(x) behaviour

Thanks!
At my baud rate the transmission time is almost exactly 1ms per byte. I incorrectly assumed that sdWrite blocks until all has completed. But it blocks until the data byte goes in the transmission register TDR.
by plamen
Sun May 07, 2017 1:17 pm
Forum: STM32 Support
Topic: osDelay(x) behaviour
Replies: 2
Views: 998

osDelay(x) behaviour

Hello, I can't explain the behavior of the following code, compiled on STM32F105 with Chibios 16.1.8: for (uint32_t i = 0; i < size; ++i) { sdWrite(DRV, &data[i], 1); osDelay(time); } Send data on the serial line, there should be a pause between each byte - time in ms When I observe the transmis...
by plamen
Sun May 07, 2017 1:03 pm
Forum: Bug Reports
Topic: compile error in 16.1.8 Topic is solved
Replies: 1
Views: 914

compile error in 16.1.8 Topic is solved

Hello,
There is compile error in cmsis_os.c on line 189:
tp->state = CH_STATE_CURRENT;
Probably it should be:
tp->p_state = CH_STATE_CURRENT;
by plamen
Thu Feb 02, 2017 3:24 pm
Forum: SPC56x Support
Topic: serial errOverRun
Replies: 5
Views: 1841

Re: serial errOverRun

I added in the initial configuration of the driver for the Reception Data Field Length linflexp->UARTCR.B.RDFL_RFC = 3; //receive 4 bytes And in the RX ISR: sdIncomingDataI(sdp, sdp->linflexp->BDRM.B.DATA4); sdIncomingDataI(sdp, sdp->linflexp->BDRM.B.DATA5); sdIncomingDataI(sdp, sdp->linflexp->BDRM....
by plamen
Thu Feb 02, 2017 11:13 am
Forum: SPC56x Support
Topic: serial errOverRun
Replies: 5
Views: 1841

Re: serial errOverRun

It is configured at 160MHz, which should be maximum performance. I took that code from what S32 design studio generates -I don't suspect errors there but I'll dobule check it. Another project is communicating with the MCU at 1Mb/s without any overflow problems - but it doesn't use any OS and is comp...

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