DFM-17 Radiosonde - Revision history

Trevor229: Add info from gx1400's data_dfm_RE repo, clean up formatting, add new graphics and new repo for T/H measurement

2025-01-24T22:48:06Z

Add info from gx1400's data_dfm_RE repo, clean up formatting, add new graphics and new repo for T/H measurement

Trickv: add links to programming jig I made, links to dfm17_hamradio and RS41ng software packges

2024-05-10T03:33:28Z

add links to programming jig I made, links to dfm17_hamradio and RS41ng software packges

← Older revision		Revision as of 03:33, 10 May 2024
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	The board uses a STM32, and requires a ST-Link to program. The process used to upload code to the MCU is the same as the Vaisala RS41 radiosonde, you will need to solder and connect the VTRef(3.3V), Ground, SWDIO, SWDCLK and RST pins to your ST-Link.		The board uses a STM32, and requires a ST-Link to program. The process used to upload code to the MCU is the same as the Vaisala RS41 radiosonde, you will need to solder and connect the VTRef(3.3V), Ground, SWDIO, SWDCLK and RST pins to your ST-Link. You can also try using a [https://www.printables.com/model/594752-dfm17-swd-programming-jig-clip-thing 3d printed jig] to hold a connector on the board for solderless programming.

			The board can run without external power being supplied when programming. This board has read-out protection enabled similar to the RS41 and this must be disabled before you can flash firmware to the board.

			==Software==

			A few attempts have been made to build replacement firmware for these devices, the key goal being to be able to re-fly a sonde as an amateur payload.

			There was an early attempt called dfm17_hamradio [https://github.com/gx1400/dfm17_hamradio here] and [https://github.com/trickv/dfm17_hamradio/tree/aprs-fifo-gps-superhacky here].

			The most mature looking effort is [https://github.com/mikaelnousiainen/RS41ng RS41ng] which has experimental support.

	The board can run without external power being supplied when programming. This board has read-out protection enabled similar to the RS41 and this must be disabled before you can flash firmware to the board. <br />
	<references />		<references />

Trickv: Add note about wire colors when splicing a USB cable

2023-04-03T20:49:33Z

Add note about wire colors when splicing a USB cable

← Older revision		Revision as of 20:49, 3 April 2023
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	'''Battery Management IC'''		'''Battery Management IC'''

	*		*

	PC0 - Hold high to prevent BMS from removing battery power after boot up		PC0 - Hold high to prevent BMS from removing battery power after boot up
Line 290:		Line 290:

	*VBUS: 5 Volts DC		*VBUS: 5 Volts DC
	*D-: TX		*D- (typically white): TX
	*D+: RX		*D+ (typically green): RX
	*GND: GND		*GND: GND

Gx1400 at 15:41, 10 February 2023

2023-02-10T15:41:13Z

← Older revision		Revision as of 15:41, 10 February 2023
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	*PA6 = SDO (Pin 13)		*PA6 = SDO (Pin 13)
	*PA5 = SCLK (Pin 12)		*PA5 = SCLK (Pin 12)
			*PD0 = GPIO2 (Pin 19)
			*PA4 = GPIO3 (Pin 20)

	'''NFC/RFID 4k EEPROM'''		'''NFC/RFID 4k EEPROM'''

Gx1400 at 22:47, 9 February 2023

2023-02-09T22:47:38Z

← Older revision		Revision as of 22:47, 9 February 2023
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	*PA0 - Vbatt/Power supply voltage (''needs confirmation)''		*PA0 - Vbatt/Power supply voltage (''needs confirmation)''
	*PB1 - Vbatt/Power supply current monitor (''needs confirmation)''		*PB1 - Vbatt/Power supply current monitor (''needs confirmation)''

			'''Battery Management IC'''

			*

			PC0 - Hold high to prevent BMS from removing battery power after boot up

	<br />		<br />

Gx1400: Add part revision per https://siliconlabs.force.com/community/s/article/using-part-info-command-to-identify-ezradio-pro-part-number?language=en_US

2023-01-29T21:48:03Z

Add part revision per https://siliconlabs.force.com/community/s/article/using-part-info-command-to-identify-ezradio-pro-part-number?language=en_US

← Older revision		Revision as of 21:48, 29 January 2023
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	\|U10		\|U10
	\|Silicon Labs		\|Silicon Labs
	\|Si4063		\|Si4063-C2A
	\|High Performance, Low Current Transmitter		\|High Performance, Low Current Transmitter
	\|QFN20		\|QFN20

Gx1400: Added possible LD series LDO data sheet

2023-01-23T02:30:46Z

Added possible LD series LDO data sheet

← Older revision		Revision as of 02:30, 23 January 2023
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	*PA9(TX) = USB D+		*PA9(TX) = USB D+
	*PA10(RX) = USB D-		*PA10(RX) = USB D-

	====Si4063 (SPI_1)====		====Si4063 (SPI_1)====
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	\|DFN6		\|DFN6
	\|33R		\|33R
	\|		\|[https://www.mouser.com/datasheet/2/389/ld39050-1849494.pdf Possible part from Mouser]
	\|''Needs verification, appears to provide 3.3V ~~for GNSS~~''		\|''Needs verification, appears to provide 3.3V regulated power''
	\|-		\|-
	\|U14		\|U14

Gx1400: Add pinouts to ICs

2023-01-23T02:09:54Z

Add pinouts to ICs

← Older revision		Revision as of 02:09, 23 January 2023
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	*PA9(TX) = USB D+		*PA9(TX) = USB D+
	*PA10(RX) = USB D-		*PA10(RX) = USB D-

	====Si4063 (SPI_1)====		====Si4063 (SPI_1)====
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	'''NFC/RFID 4k EEPROM'''		'''NFC/RFID 4k EEPROM'''

	*PC13 = RF WIP/Busy		*PC13 = RF WIP/Busy (Pin 7)
	*PB6 = SCL		*PB6 = SCL (Pin 6)
	*PB7 (''needs confirmed, signal routes under STM)'' = SDA		*PB7 (''needs confirmed, signal routes under STM)'' = SDA (Pin 5)

	'''STG719 (DPST) - U2'''		'''STG719 (DPST) - U2'''

	*PC11 = IN		*PC11 = IN (Pin 1)

	'''STG719 (DPST) - U3'''		'''STG719 (DPST) - U3'''

	*PD2 = IN		*PD2 = IN (Pin 1)

	'''STG719 (DPST) - U4'''		'''STG719 (DPST) - U4'''

	*PB5 = IN		*PB5 = IN (Pin 1)

	'''STG719 (DPST) - U5'''		'''STG719 (DPST) - U5'''

	*PB4= IN		*PB4= IN (Pin 1)

	'''DG636 (Dual DPST) - U6'''		'''DG636 (Dual DPST) - U6'''

	*VDD = ENABLE (always HIGH)		*VDD = ENABLE (always HIGH) (Pin 2)
	*PA10 = A0		*PA10 = A0 (Pin 1)
	*''UnknownPin#1'' (routes under STM) = A1		*''UnknownPin#1'' (routes under STM) = A1 (Pin 14)

	'''STG719 (DPST) - U7'''		'''STG719 (DPST) - U7'''

	*''UnknownPin#1'' (routes under STM) = IN		*''UnknownPin#1'' (routes under STM) = IN (Pin 1)

	'''SN74LV4053 (Triple 2Ch Mux/Demux) - U8'''		'''SN74LV4053 (Triple 2Ch Mux/Demux) - U8'''

	*PB13 & PB14 = A		*PB13 & PB14 = A (Pin 11)
	**connected by trace		**STM pins connected by trace? ''Why? Read back?''
	**''Why? Read back?''		*''UnknownPin#1'' (routes under STM) = B (Pin 10) & C (Pin 9)
	*''UnknownPin#1'' (routes under STM) = B & C		**IC pins connected by trace
	**connected by trace

	'''Analog Inputs to STM2'''		'''Analog Inputs to STM2'''

Gx1400: added Analog inputs

2023-01-23T02:03:09Z

added Analog inputs

← Older revision		Revision as of 02:03, 23 January 2023
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	*''UnknownPin#1'' (routes under STM) = B & C		*''UnknownPin#1'' (routes under STM) = B & C
	**connected by trace		**connected by trace

			'''Analog Inputs to STM2'''

			*PA0 - Vbatt/Power supply voltage (''needs confirmation)''
			*PB1 - Vbatt/Power supply current monitor (''needs confirmation)''

	<br />		<br />

Gx1400: added NFC/RFID pins, fixed GPS 1pps pin

2023-01-23T02:00:55Z

added NFC/RFID pins, fixed GPS 1pps pin

← Older revision		Revision as of 02:00, 23 January 2023
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	*PA3(RX) = GPS TXD (Pin 2)		*PA3(RX) = GPS TXD (Pin 2)
	*PA2(TX) = GPS RXD (Pin 3)		*PA2(TX) = GPS RXD (Pin 3)
	*~~PB6~~ = GPS 1pps (Pin 4) (LED next to flex cable connector)		*PB8 = GPS 1pps (Pin 4) (LED next to flex cable connector)

	====UART via USB Port (USART_1)====		====UART via USB Port (USART_1)====
Line 48:		Line 48:
	*PC3 - SDN (Pin 1)		*PC3 - SDN (Pin 1)
	*PA7 = SDI (Pin 14)		*PA7 = SDI (Pin 14)
	*PA6 = SDO (Pin 13)		*PA6 = SDO (Pin 13)
	*PA5 = SCLK (Pin 12)		*PA5 = SCLK (Pin 12)

			'''NFC/RFID 4k EEPROM'''

			*PC13 = RF WIP/Busy
			*PB6 = SCL
			*PB7 (''needs confirmed, signal routes under STM)'' = SDA

	'''STG719 (DPST) - U2'''		'''STG719 (DPST) - U2'''