Discovery board STM32f407vg try to program stm32f405rg MCU by SWD and No device found on target error appears.
Hello.
As above says, I'm trying to program a STM32f405rg MCU with the discovery board STM32f407vg.
I follow the process of taking off he jumpers of the ST-LINK and connecting in CN2
1 (VDD) ---> (3.3V)
2 (SWCLK) --->PA14 (SWCLK )
3 (GND) ---> (GND)
4 (SWDIO) ---> PA13 (SWDIO)
5 (NRST) ---> NRST (Pin # 7 LQFP64)
6 (SWO) ---> Not connected
I've follown the "GETTING START WITH THE STM32F4 MCU HARDWARE DEVELOPMENT" power supply scheme, in which is told how i'm supposed to connect every necessary pin for the device to start up.
If i measure the voltages in the pins VDD, VBAT, VCAP1 and 2, VDDA,VSS,VSSA, VREF+, RESET and BOOT0 i get:
VDD = 3.3 v
VBAT = 3.3v
VCAP 1 and 2 =1.25 v
VDDA = 3.3v
VSSA = GND
VSS = GND
VREF+ = It's the same VDDA pin in this Package
RESET=3.3v
BOOT0= GND
I'm using the decoupling capacitor where its required.
I'm using an oscillator of 8 MHz, i dont know if this could be an issue, since i've seen in other posts, usually is used a 24 MHz oscillator.
In the software part i ensure its selected SWD instead of JTAG
How do i now the device is still working?
Pleas help it's a little urgent