Search found 2961 matches
- Sun Feb 04, 2024 8:42 am
- Forum: You and your build
- Topic: 2004 BMW 760 N73 "A big mistake"
- Replies: 198
- Views: 234222
- Tue Jan 16, 2024 10:12 am
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 427175
Re: Is stm32f4 the right chip?
what about risc-v family? e.g. https://habr.com/ru/articles/777504/
it has plenty of fancy features that might fit perfectly the engine management requirements.
it has plenty of fancy features that might fit perfectly the engine management requirements.
- Thu Dec 21, 2023 8:46 pm
- Forum: Dev: Hardware
- Topic: 3D printing ECU case - cost?
- Replies: 72
- Views: 84142
Re: 3D printing ECU case - cost?
btw, recently I discovered onshape.com - basically, it's an online CAD and it looks way better than fusion360
- Thu Dec 21, 2023 8:42 pm
- Forum: Dev: Hardware
- Topic: 3D printing ECU case - cost?
- Replies: 72
- Views: 84142
Re: 3D printing ECU case - cost?
this doesn't look like sla. did you mean PLA?
- Tue Oct 10, 2023 3:03 pm
- Forum: Dev: Hardware
- Topic: VR + knock module
- Replies: 69
- Views: 179025
Re: VR + knock module
I'd suggest to check how it works with low voltage cranking scenario.
- Sat Sep 30, 2023 4:31 pm
- Forum: Dev: Hardware
- Topic: VR + knock module
- Replies: 69
- Views: 179025
- Sat Apr 29, 2023 1:01 pm
- Forum: Dev: Hardware
- Topic: High current H-bridge
- Replies: 3
- Views: 11890
- Fri Apr 14, 2023 9:11 am
- Forum: Dev: Hardware
- Topic: F103 dual channel wideband controller + EGT + 2 x AUX In + 2 Aux out
- Replies: 87
- Views: 172113
Re: F103 dual channel wideband controller + EGT + 2 x AUX In + 2 Aux out
Metal enclosure for a board with bluetooth?
- Tue Apr 11, 2023 10:09 am
- Forum: Universal Boards
- Topic: Proteus loses communication.
- Replies: 4
- Views: 14430
Re: Proteus loses communication.
that's a nice hint! Hadn't thought of that a while ago, when got disconnections trying to connect to my frankenstein)
- Fri Apr 07, 2023 9:51 pm
- Forum: You and your build
- Topic: red 2003 VVT test mule Miata NB2 #27
- Replies: 240
- Views: 418704
Re: red 2003 VVT test mule Miata NB2 #27
В модуле Reset and Clock (RCM) (для STM32 это RCC) добавили бит включения тактирования FPU - RCM->AHB2CLKEN, бит с номером 1.
Только такое ощущение, что этот бит ни на что не влияет. Пробовал и выставлять его, пробовал и не выставлять - плавучка одинаково считается.
- Fri Apr 07, 2023 9:45 pm
- Forum: You and your build
- Topic: red 2003 VVT test mule Miata NB2 #27
- Replies: 240
- Views: 418704
Re: red 2003 VVT test mule Miata NB2 #27
on the other hand, however: APM32F4xxx User_Manual_V1.6: programmable priority levels A version: 8 priority levels (3-bit interrupt priority level could be used) C version: 16 priority levels (4-bit interrupt priority level could be used) To check the rev.: Device ID register (DBGMCU_IDCODE) Waf...
- Fri Apr 07, 2023 9:39 pm
- Forum: You and your build
- Topic: red 2003 VVT test mule Miata NB2 #27
- Replies: 240
- Views: 418704
Re: red 2003 VVT test mule Miata NB2 #27
I got a reply from the FAE: APM has NVIC with 8 levels, STM has 16 levels.
One very obvious problem we found is that the ADC calibration in system memory is missing. (non existent)
- Sat Apr 01, 2023 5:07 pm
- Forum: Dev: Hardware
- Topic: Leaning new skills - making a M111 harness
- Replies: 10
- Views: 12911
Re: Leaning new skills - making a M111 harness
you could have opened an online master-class
or at least publish some videos of the process..
I was always wondering how the four (or the eight - in case of v8) same-coloured injector wires are connected together.
or at least publish some videos of the process..
I was always wondering how the four (or the eight - in case of v8) same-coloured injector wires are connected together.
- Sat Mar 25, 2023 9:20 am
- Forum: Dev: Software
- Topic: LIN bus
- Replies: 13
- Views: 26348
Re: LIN bus
which code? it's just raw data..
btw, googled for that BMW battery wire and got this:
"Плюсовой провод аккумуляторной батареи БМВ, Клемма аккумулятора BMW с пиропатроном" %-)))
btw, googled for that BMW battery wire and got this:
"Плюсовой провод аккумуляторной батареи БМВ, Клемма аккумулятора BMW с пиропатроном" %-)))
- Fri Mar 24, 2023 8:32 am
- Forum: Dev: Software
- Topic: LIN bus
- Replies: 13
- Views: 26348
Re: LIN bus
I am curious how much current does it consume when in sleep mode? ;-) Still, no protocol details :-( I wonder, what chip is inside. Is it possible to disassebme the firmware? or decyphering protocol is the way to go? sort of offtopic: there are also chinese BLE battery trackers, which provide detail...
- Thu Mar 23, 2023 9:20 am
- Forum: Dev: Software
- Topic: LIN bus
- Replies: 13
- Views: 26348
Re: LIN bus
afaik, hall-based current sensors work best at some certain current range: if it is good for small currents, it won't work for large currents (btw, not sure, will it provide wrong readings or just fail). those intended for large currents (e.g. of a starter motor) won't read small values (sensitivity...
- Wed Mar 22, 2023 11:56 pm
- Forum: Dev: Software
- Topic: LIN bus
- Replies: 13
- Views: 26348
Re: LIN bus
looks like a smart shunt? do you have the part number? know anything about its datagrams?
- Sat Mar 11, 2023 3:26 pm
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 427175
Re: Is stm32f4 the right chip?
That's a smart evil plan!
https://www.chipdip.ru/search?searchtext=apm32F407VGT7
https://www.chipdip.ru/search?searchtext=apm32F407VGT7
- Thu Mar 09, 2023 12:24 pm
- Forum: You and your build
- Topic: 1988 Peugeot 205 GTX from carburetor to EFI
- Replies: 23
- Views: 23901
Re: 1988 Peugeot 205 GTX from carburetor to EFI
AndreyB, why do you say ignore MAP and TPS. They are clearly coupled to VBAT.It seems as all the voltage readings are wrong.
Could be broken adc in the chip itself?
- Thu Mar 09, 2023 12:17 pm
- Forum: You and your build
- Topic: 1988 Peugeot 205 GTX from carburetor to EFI
- Replies: 23
- Views: 23901
Re: 1988 Peugeot 205 GTX from carburetor to EFI
malfunctioning voltage regulator? does it happen during cranking? bad battery? what software do you usually use to view .mlg files? megalogviewer is limited just to 500 values.
- Sat Mar 04, 2023 9:33 pm
- Forum: Dev: Hardware
- Topic: Honda SEFMJ protocol
- Replies: 19
- Views: 31061
Re: Honda SEFMJ protocol
L-line is a third one, which is different from Lin
- Sat Mar 04, 2023 9:32 pm
- Forum: Dev: Hardware
- Topic: Honda SEFMJ protocol
- Replies: 19
- Views: 31061
Re: Honda SEFMJ protocol
K-line and Lin, although based on usart, are still different protocols. The image from the scope could be a break frame sent by Lin master (right now playing with it) - it should be followed by sync byte (0x55), and Id byte, followed by data and crc.
- Sat Mar 04, 2023 7:58 pm
- Forum: Dev: Hardware
- Topic: Honda SEFMJ protocol
- Replies: 19
- Views: 31061
Re: Honda SEFMJ protocol
LIN definitely looks different.
- Sun Feb 19, 2023 11:06 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 499
- Views: 745445
Re: Firmware developent status
you can tell for sure by measuring the length of the start bit probably.
still, didn't get: it doesn't work even when bytes are sent from the usb-uart dongle? so, it's a firmware bug?
still, didn't get: it doesn't work even when bytes are sent from the usb-uart dongle? so, it's a firmware bug?
- Sun Feb 19, 2023 8:49 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 499
- Views: 745445
Re: Firmware developent status
10400 is not supported by some usb-uart converters... (that's why people prefer ft232)
- Sun Feb 19, 2023 7:52 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 499
- Views: 745445
Re: Firmware developent status
"No LIN transceiver is fully compliant to the K-LINE, but compatible. You can see the difference from the document. So I think TJA1021 can work"
https://community.nxp.com/t5/MPC5xxx/TJA1021-K-LINE-compatibilty/td-p/550725
unfortunatelly, it's 403 for me.
https://community.nxp.com/t5/MPC5xxx/TJA1021-K-LINE-compatibilty/td-p/550725
unfortunatelly, it's 403 for me.
- Sun Feb 19, 2023 7:08 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 499
- Views: 745445
Re: Firmware developent status
what's the schematics? which exactly wire is that? kline usually works at much higher levels (12v).
can it read bytes sent from usb-uart adapter?
can it read bytes sent from usb-uart adapter?
- Sun Feb 19, 2023 6:05 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 499
- Views: 745445
Re: Firmware developent status
there seems to be a 5 ms pause between these two bytes - could be a timeout
- Sun Feb 19, 2023 11:36 am
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 499
- Views: 745445
Re: Firmware developent status
5ms timeout?
Re: KICAD
you mean version 7.0.0?
"KiCad 6.0.* will no longer be maintained"
"KiCad 6.0.* will no longer be maintained"