You are here: start » boards » demov1

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Last revision Both sides next revision
boards:demov1 [2022/11/13 12:19]
darron [Setup] 		boards:demov1 [2022/11/14 00:02]
darron [Test]
Line 5: Line 5:
 {{:boards:demov1-test.jpg?200|J-Link test with J-Link EDU Mini}} {{:boards:demov1-test.jpg?200|J-Link test with J-Link EDU Mini}}
 \\ \\ \\ \\
-{{:boards:demov1-test2.jpg?200|OpenOCD test with J-Link CLONE}}+{{:boards:demov1-test3.jpg?200|OpenOCD test with J-Link CLONE}}
 \\ \\ \\ \\
 {{boards:stm32f030.png?200|Pinout}} {{boards:stm32f030.png?200|Pinout}}
Line 56: Line 56:
  
 === Power === === Power ===
-Power is supplied on the USB socket which feeds a 3V3 LDO regulator. The USB socket does not support I/O, it's only for powering the device. 
  
-=== Setup ===+Power is supplied on the USB socket or the 5V pins. This feeds a 3V3 LDO regulator. 
 + 
 +The USB socket does not support I/O, it's only for powering the device. 
 + 
 +=== Test ===
  
 For testing this board use a [[interfaces:ftdi|UM232R]] for power, serial comms, For testing this board use a [[interfaces:ftdi|UM232R]] for power, serial comms,
 reset and a source or external interrupt. Picocom is used to control the reset reset and a source or external interrupt. Picocom is used to control the reset
-pin and provide a pulse for testing exti.+pin and provide a pulse for testing STM32 EXTI.
  
-For programming, use [[tools:segger|J-Link]] device or [[tools:openocd:OpenOCD]].+For programming, use [[tools:segger|J-Link]] or [[tools:openocd|OpenOCD]].
  
 ==Wiring== ==Wiring==
Line 77: Line 80:
    |        |USB-----------5V    |        |USB-----------5V
    +--------+    +--------+
 +   +--------+
 +USB| JLINK/ |DIO-----------DIO
 +   | CLONE  |CLK-----------CLK
 +   +--------+   
        
-USB on left is RPi host and USB on right is USB bus power pin.+USB on left is RPi host and USB on right is USB 5V pin on UM232R.
 </code> </code>
  
 ==Comms== ==Comms==
 +
 +The lower-rts option to picocom will take the board out of
 +reset and run the program.
  
 <code> <code>
-picocom -b 115200 /dev/ttyUSB0+picocom --quiet --lower-rts -b 115200 /dev/ttyUSB0
 </code> </code>
 +
 +From the RS232 perspective RTS is inverted so when picocom takes
 +the line low, it's actually a high logical output and the board
 +is taken out of reset.
  
 ==Reset== ==Reset==
  
-CTRL A CTRL G will change the RTS line state from high to low. +Picocom CTRL A CTRL G will toggle the RTS line state. 
-From the RS232 perspective it's inverted so when picocom says + 
-the line is low, it's actually a high output and the device +==Reboot== 
-is out of reset.+ 
 +If the board is sleeping, picocom can reboot the board to prepare 
 +it for new programming. 
 + 
 +<code> 
 +picocom --quiet --lower-rts --baud 115200 --exit-after 0 /dev/ttyUSB0 
 +</code>
  
 ==Pulse== ==Pulse==
  
-CTRL A CTRL P will pulse the DTR pin from low to high for +Picocom CTRL A CTRL P will pulse the DTR pin from low to high for 
-1 second. +1 second to test EXTI high or low edge. 
-=== Test ===+ 
 +=== Programming ===
  
-Test SWD with J-Link and OpenOCD.+Use SWD with J-Link or OpenOCD.
  
 ==J-Link== ==J-Link==