chandu.kurapati
Full Member level 3
- Joined
- Oct 31, 2013
- Messages
- 186
- Helped
- 5
- Reputation
- 10
- Reaction score
- 5
- Trophy points
- 1,298
- Location
- Bengaluru, India
- Activity points
- 2,778
Hi,
I am working on the serial wire debugger protocol it has 4 pins(SWDIO, SWCLK, NRST, SWO), I got the importance of the SWDIO, SWCLK, SWO but i didn't find the importance of NRST in any where, but in some posts they mention the NRST also.
I am configuring the SWD in correct way as per my data sheet first Line reset then passing the ID it changed the JTAG to SWD and then line reset then finally I passed the IDCODE packet sequence but i don't got the ACK response from the target.
But my sequence is correct as per data sheet(STM32F407 SWD protocol), can any one help about the SWD protocol.
Thanks & Regards,
Chandu.Kurapati.
I am working on the serial wire debugger protocol it has 4 pins(SWDIO, SWCLK, NRST, SWO), I got the importance of the SWDIO, SWCLK, SWO but i didn't find the importance of NRST in any where, but in some posts they mention the NRST also.
I am configuring the SWD in correct way as per my data sheet first Line reset then passing the ID it changed the JTAG to SWD and then line reset then finally I passed the IDCODE packet sequence but i don't got the ACK response from the target.
But my sequence is correct as per data sheet(STM32F407 SWD protocol), can any one help about the SWD protocol.
Thanks & Regards,
Chandu.Kurapati.