Search found 254 matches

by shaoziyang
Tue Jul 09, 2019 2:31 am
Forum: MicroPython pyboard
Topic: i2c error recovery
Replies: 2
Views: 85

Re: i2c error recovery

re-init I2C has no effect,
by shaoziyang
Mon Jul 08, 2019 7:32 am
Forum: MicroPython pyboard
Topic: i2c error recovery
Replies: 2
Views: 85

i2c error recovery

I using a i2c sensor in pyboard, and occasionally hardware i2c will timeout. When this happens, i2c will not read sensor anymore, and it can't recover automatic unless reset. If I using software i2c, it will recovery.

Does anyone konw how to recovery hardware i2c when it occur errors?
by shaoziyang
Mon May 27, 2019 1:19 am
Forum: Other Boards
Topic: UART(4) doesn´t exist (STM32L476 Nucleo)
Replies: 3
Views: 173

Re: UART(4) doesn´t exist (STM32L476 Nucleo)

It maybe there are too many Nucleo boards with different MCU. You may modify mpconfigboard.h to customize your firmware.
by shaoziyang
Sun May 26, 2019 3:16 pm
Forum: Other Boards
Topic: UART(4) doesn´t exist (STM32L476 Nucleo)
Replies: 3
Views: 173

Re: UART(4) doesn´t exist (STM32L476 Nucleo)

Nucelo-L476 firmware has only define UART2 default. // UART config #define MICROPY_HW_UART2_TX (pin_A2) #define MICROPY_HW_UART2_RX (pin_A3) #define MICROPY_HW_UART_REPL PYB_UART_2 #define MICROPY_HW_UART_REPL_BAUD 115200 You may add these lines (from PYBV10) to mpconfigboard.h and recompile the fir...
by shaoziyang
Mon May 20, 2019 7:42 am
Forum: Other Boards
Topic: STM32F401CCU6 SUPPORT
Replies: 3
Views: 203

Re: STM32F401CCU6 SUPPORT

No. At least 256K flash required.
by shaoziyang
Wed Apr 03, 2019 5:45 am
Forum: MicroPython pyboard
Topic: Does pyboard will support psRAM?
Replies: 0
Views: 155

Does pyboard will support psRAM?

Does pyboard will support psRAM?
by shaoziyang
Wed Apr 03, 2019 2:08 am
Forum: micro:bit boards
Topic: What shield for my micro:bit?
Replies: 1
Views: 176

Re: What shield for my micro:bit?

Most shield have similar functions
by shaoziyang
Tue Apr 02, 2019 1:41 pm
Forum: ESP32 boards
Topic: PC as an ESP32 simulator ?
Replies: 3
Views: 589

Re: PC as an ESP32 simulator ?

That is great!
by shaoziyang
Wed Mar 27, 2019 2:03 pm
Forum: ESP32 boards
Topic: DS3231 Chinese Community!
Replies: 4
Views: 317

Re: DS3231 Chinese Community!

Both DS1307 and DS3231 lib are works in ESP32. MicroPython v1.10-54-g43a894fb4 on 2019-02-07; ESP32 module with ESP32 Type "help()" for more information. >>> paste mode; Ctrl-C to cancel, Ctrl-D to finish === from machine import Pin, I2C === import DS1307 === === i2c = I2C(-1, sda = Pin(21), scl = P...
by shaoziyang
Wed Mar 27, 2019 3:11 am
Forum: ESP32 boards
Topic: DS3231 Chinese Community!
Replies: 4
Views: 317

Re: DS3231 Chinese Community!

I will try it a little later.