2016-08-22 12:12 PM
Posting some resources for this neat little breakout board from
https://vcc-gnd.world.taobao.com/
, also available in an STM32F103VET6 model, the schematic is one for a slightly older F103 variant.// VCC-GND STM32F407VET6 MINI - sourcer32@gmail.com
// 25 MHz Crystal
// http://vcc-gnd.taobao.com/
// PB9 LED
// PA8 SD DETECT
// PC8 SD D0
// PC9 SD D1
// PC10 SD D2
// PC11 SD D3
// PC12 SD CLK
// PD2 SD CMD
// GND 3V3 GND PB8 PB6 PB4 PD7 PD5 PD3 PD1PC12PC11PA15PA13PA11 PA9 PC9 PC8
// GND 3V3 GND PB9 PB7 PB5 PB3 PD6 PD4 PD2 PD0PC10PA14PA12PA10 PA8 PC7 PC6
// PD14PD15
// PD12PD13
// PD10PD11
// PD8 PD9
// PB14PB15
// PB12PB13
// PB10PB11
// PE14PE15
// PE12PE13
// PE10PE11
// GND 3V3 5V PE1 PE3 PE5PC13PC15 PC1 PC3 PA2 PA3 PA5 PA7 PC5 PB1 PE7 PE9
// GND 3V3 VB PE0 PE2 PE4 PE6PC14 PC0 PC2 PA0 PA1 PA4 PA6 PC4 PB0 PB2 PE8
#vcc-gnd
2016-08-22 01:48 PM
That's an interesting board. I prefer boards that do very little.
Question, what is U1. The www.vcc-gnd.com website is broken and there is no Informaion on their Taobao site (that I can find).It looks like the board has a 32KHz crystal, USB, and SD, but what is U1?Andrei2016-08-22 01:53 PM
Got it, 1KB EEPROM.
(Boy, this forum software sucks. I would have never noticed your attachment if you hadn't mentioned it.)2016-08-22 03:09 PM
Boy, this forum software *****
Yes, vigorously... The vcc-gnd site has been broken for a very long time, and data has been hard to find. I've pulled together some resources, and another forum member has recreated some much better schematics and info-graphics. I have much larger images, these were shrunk to get under the 100KB limit on in-line images. Attached the original hires images to this post. It is a 1KB I2C EEPROM, I think it is foot-print compatible with others, but I like these as simple data-loggers directly onto the MicroSD card. ________________ Attachments : 20160803_135143.jpg : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0VH&d=%2Fa%2F0X0000000baj%2FefMIA9ySpau1fsK.FWRB7P3QQS7J_MAlyFf4jCYY9UE&asPdf=false20160803_135215.jpg : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0a1&d=%2Fa%2F0X0000000bai%2F1tHqkOrjAF0RUypfSNTIIDP_opScC3uKUCN3Ol7H5rY&asPdf=false2017-02-16 08:42 AM
https://forum.micropython.org/viewtopic.php?t=2889
2017-05-08 07:04 AM
Here is the schematic for the '407 version of the board.
________________ Attachments : STM32F407VET6mini-schem.pdf : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006Hyg7&d=%2Fa%2F0X0000000bAq%2FIJelM1LBGnejgHgD8V1Yv8gLZQOheroiC6rfAX1TnWM&asPdf=false2018-07-29 04:56 PM
This thread seems to have had a brutal trip through the forum transition.
Pretty sure that wasn't the original attachment.
// VCC-GND STM32F407VET6 MINI - sourcer32@gmail.com
// 25 MHz Crystal
// http://vcc-gnd.taobao.com/
// PB9 LED
// PA8 SD DETECT
// PC8 SD D0
// PC9 SD D1
// PC10 SD D2
// PC11 SD D3
// PC12 SD CLK
// PD2 SD CMD
// GND 3V3 GND PB8 PB6 PB4 PD7 PD5 PD3 PD1PC12PC11PA15PA13PA11 PA9 PC9 PC8
// GND 3V3 GND PB9 PB7 PB5 PB3 PD6 PD4 PD2 PD0PC10PA14PA12PA10 PA8 PC7 PC6
// PD14PD15
// PD12PD13
// PD10PD11
// PD8 PD9
// PB14PB15
// PB12PB13
// PB10PB11
// PE14PE15
// PE12PE13
// PE10PE11
// GND 3V3 5V PE1 PE3 PE5PC13PC15 PC1 PC3 PA2 PA3 PA5 PA7 PC5 PB1 PE7 PE9
// GND 3V3 VB PE0 PE2 PE4 PE6PC14 PC0 PC2 PA0 PA1 PA4 PA6 PC4 PB0 PB2 PE8
@brk