Electronics: Difference between revisions
Jump to navigation
Jump to search
| Line 27: | Line 27: | ||
LM1117t Pins - Gnd Out In |
LM1117t Pins - Gnd Out In |
||
[http://www.arduinesp.com/blink FT232 with Transistor Pin out] [http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.000005+10.20027730826997+50+5+50%0AL+656+304+720+304+0+0+false+5+0%0AL+656+400+720+400+0+0+false+5+0%0At+560+304+512+304+0+1+9.499948665035505e-19+0+100%0At+576+400+512+400+1+1+1.4592484383544339e-18+0+100%0Ar+656+304+560+304+0+12000%0Ar+656+400+576+400+0+12000%0Aw+656+304+656+336+0%0Aw+512+384+512+368+0%0Aw+512+320+512+336+0%0Aw+512+368+656+336+0%0Aw+512+336+656+368+0%0Aw+656+368+656+400+0%0Aw+512+288+448+288+0%0Aw+512+416+448+416+0%0AM+368+288+320+288+0+2.5%0AM+368+416+320+416+0+2.5%0Aw+368+416+448+416+0%0Aw+368+288+448+288+0%0A CJS] - Does this need pull ups/downs? |
[http://www.arduinesp.com/blink FT232 with Transistor Pin out] [http://www.arduinesp.com/getting-started parent] [http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.000005+10.20027730826997+50+5+50%0AL+656+304+720+304+0+0+false+5+0%0AL+656+400+720+400+0+0+false+5+0%0At+560+304+512+304+0+1+9.499948665035505e-19+0+100%0At+576+400+512+400+1+1+1.4592484383544339e-18+0+100%0Ar+656+304+560+304+0+12000%0Ar+656+400+576+400+0+12000%0Aw+656+304+656+336+0%0Aw+512+384+512+368+0%0Aw+512+320+512+336+0%0Aw+512+368+656+336+0%0Aw+512+336+656+368+0%0Aw+656+368+656+400+0%0Aw+512+288+448+288+0%0Aw+512+416+448+416+0%0AM+368+288+320+288+0+2.5%0AM+368+416+320+416+0+2.5%0Aw+368+416+448+416+0%0Aw+368+288+448+288+0%0A CJS] - Does this need pull ups/downs? |
||
Pins: |
Pins: |
||
Revision as of 12:07, 28 November 2016
General Infos
Converters/Calculators
DSO138
stm32flash -v -b 115200 /dev/ttyUSB0 -w 113-13801-061.hex r2 ../src/firmware-src/libdso138.a -b16 -aarm -AA
- "Supports two types of TFT controllers (ILI9341 and ILI9325/9328)."
- Mine is a ILI9341...
- CPU is: STM32F103C8. Does not support DFU (usb bootloader).
- Calling the STM32 SystemMemory Bootloader from your application
- how to use STM32 system memory boot modes
- StackOverflow Question
- libopencm3/libopencm3-examples
- libopencm3/libopencm3
- Post on bare STM32 dev
- USB HID on STM32F042
- This might be about the bootloader...
ESP-12F Programmer
Bootloading/Usage pinouts... LM1117t Pins - Gnd Out In
FT232 with Transistor Pin out parent CJS - Does this need pull ups/downs?
Pins:
- EN - Always must be high.
- GPIO15 - Always must be low (Unless booting from SD card...).
- RST - Normally high? It's getting pulled down by UART... Maybe it's a Schmidt trigger... Seems to bootloop forever when pulled low, but only after the FTDI activates it. FTDI Pulls it low then high.
- GPIO0 - Boot Pin. High when normal. Low for bootloader.
On pulling resistors "A 2K resistor gives better noise immunity."
Capacitors
This info on LM1117 capacitors....
- The minimum output capacitance required by the LM1117 is 10µF...
- The ESR of the output capacitor should range between 0.3Ω - 22Ω.
- The ESR of the output capacitor should be less than 0.5Ω.
- Tantalums were specified because Electrolytic can have their ESR increase up to 30x on very low temps.
I have:
- Polyester Film (YELLOW) - 1nF->470nF @ 100 Volts
- Polyester Film (Green) - 1nF->68nF @ 630 Volts
- CBB Polypropylene Metal Film (Brown & Blue) - 1nF->2200nF @ 630 Volts
- 0402 SMD Ceramic - 1pF->0.033uF @ 50 Volts
- 0805 SMD Ceramic - 1pF-22uF (ON ORDER).
- SMD Aluminum Electrolytic Capacitor Assorted - 1uF-220uF (Various voltages, 16-63)
- Ceramic Capacitors - 3p->100nf
- Plastic + Copper Electrolytic Capacitors - 1uF->470uF (Some says ESR is low...)
Maybe get some non-SMD MLCCs? Tantalums?
Misc
Controlling Lots of Outputs from a Microcontroller and lost of other's on the blog. Transistor Tester
Simple Latch MOSFET
Pull down to voltage 5 volts
Resister Ladder
Complete
Stripboard
Negative voltage
FPGA
ICE40 UL1k