Rub87
16th December, 2017, 06:13 PM
Hello,
I am looking for some knowledge about tricore, TC1797.
My aim is to make an 'open' ecu, edc17c64, by using an etas ETK-S4.2B
The ETK comes out of a scrap EDC17C53 (some kia I bet) and is according to the manual (attached) compatible with the TC1797 I have in the EDC17C64.
Between the ETK and the PCB there should be 2 connections, CON6, JTAG interface, this ones easy and the pads are present on every bosch tricore ecu.
CON7, this one is harder. In all 'open' ecus I have seen they are connected to places on the PCB. The 4 main connections are:
2 CAL Wakeup Switch to UBatt ECU wake-up signal (for measurement preparation)
5 HDRST ECU Reset signal for Reset detection 5V tolerant
6 DAI1 Data Acquisition Interrupt Line 1
7 DAI2 Data Acquisition Interrupt Line 2
In the EDC17C53 I traced the 3 lower lines to the pins to which the were on the TC1767. the pin 2, wakeup goes to a 12v pad via a resistor
HDRST goes to pin 119
DAI1 goes to pin 145
DAI2 goes to pin 146
In the TC1767 manual
pin 119 is Port 1 General Purpose I/O Line 1 (page 57)
pin 145 Port 0 General Purpose I/O Line 0 (page 54)
pin 146 Port 0 General Purpose I/O Line 1 (page 54)
Now the question is. to which pins of the TC1797 I connect pin 5-6-7 of the ETK..
I do have a spare ecu so I could solder off the cpu to trace the required pins to a reachable area on the PCB
last but not least. all the 'open' ecus I have seen have a 'ED' cpu. Now using this without the ED makes me also a bit unsure how good it will work. So if someone has a TC1797ED lying around gathering dust =)
first I thought a serial ETK was easier than a parallel one, like the etk-t2.1 but now I think I have to change my vision. I made an ecu with such a parallel etk with tc1796 and it works awesome and easy.
I am looking for some knowledge about tricore, TC1797.
My aim is to make an 'open' ecu, edc17c64, by using an etas ETK-S4.2B
The ETK comes out of a scrap EDC17C53 (some kia I bet) and is according to the manual (attached) compatible with the TC1797 I have in the EDC17C64.
Between the ETK and the PCB there should be 2 connections, CON6, JTAG interface, this ones easy and the pads are present on every bosch tricore ecu.
CON7, this one is harder. In all 'open' ecus I have seen they are connected to places on the PCB. The 4 main connections are:
2 CAL Wakeup Switch to UBatt ECU wake-up signal (for measurement preparation)
5 HDRST ECU Reset signal for Reset detection 5V tolerant
6 DAI1 Data Acquisition Interrupt Line 1
7 DAI2 Data Acquisition Interrupt Line 2
In the EDC17C53 I traced the 3 lower lines to the pins to which the were on the TC1767. the pin 2, wakeup goes to a 12v pad via a resistor
HDRST goes to pin 119
DAI1 goes to pin 145
DAI2 goes to pin 146
In the TC1767 manual
pin 119 is Port 1 General Purpose I/O Line 1 (page 57)
pin 145 Port 0 General Purpose I/O Line 0 (page 54)
pin 146 Port 0 General Purpose I/O Line 1 (page 54)
Now the question is. to which pins of the TC1797 I connect pin 5-6-7 of the ETK..
I do have a spare ecu so I could solder off the cpu to trace the required pins to a reachable area on the PCB
last but not least. all the 'open' ecus I have seen have a 'ED' cpu. Now using this without the ED makes me also a bit unsure how good it will work. So if someone has a TC1797ED lying around gathering dust =)
first I thought a serial ETK was easier than a parallel one, like the etk-t2.1 but now I think I have to change my vision. I made an ecu with such a parallel etk with tc1796 and it works awesome and easy.