How can use st-link as a uart for STM32L072CZ ?
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‎2019-06-08 02:40 AM
How can use st-link as a uart for STM32L072CZ ......?
We have CMWX1ZZABZ-091 LoRa module, this module contain STM32L072CZ mcu.
When we connect this module using STLINKv2, com port is not showing.
I could not able to do programming to this module.
How can we program this module, can any one help me ?
Following ST Link v2 i am using
CMWX1ZZABZ-091 LoRa module
Thanks.
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LoRa
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ST-Link
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STM32L0 Series
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‎2019-06-08 03:27 AM
First, you have an Stlink clone, not a STM genuine one. Look at the print on the clone and connect clone TX to target RX and vice versa. If you want a known working setup, get a STM32 LoRa Discovery kit.
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‎2019-06-08 03:48 AM
The ST-LINK V3 provides a serial port.
You could use a USB to CMOS Serial type adapter or use a MAX3232 type chip to get to RS232 levels.​
Up vote any posts that you find helpful, it shows what's working..
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‎2019-06-08
03:54 AM
- last edited on
‎2023-12-06
04:36 AM
by
Laurids_PETERSE
Not an ST STLink V2, looks like anyone can use ST logo these days...
Here is the right one:
The 20 pin JTAG connector has USART pins wired.
Same for STLinkV3
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‎2019-06-08 04:09 AM
Those clones like the one above are clone the Stlink of a STlink V2 as on a nucleo board. So Uart is implemented.
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‎2019-06-08 06:28 AM
Some of them are V2-1​ models, the OP says he doesn't get a VCP, so I lean against that.
​
I'm using the V3 with these Murata devices.​
Up vote any posts that you find helpful, it shows what's working..