有人试过esp32 can总线么

paopaoerzhang
Posts: 2
Joined: Tue Mar 03, 2020 5:05 am

有人试过esp32 can总线么

Postby paopaoerzhang » Tue Mar 03, 2020 5:40 am

有人试过can测试么?
https://github.com/espressif/esp-idf/tr ... herals/can
can_self_test是可以的

用两块esp32_devkit_v4,都连接VP230
---------- ---------- --------------
| Master | | Slave | | Listen Only |
| | | | | |
| 21 22 | | 21 22 | | 21 22 |
---------- ---------- --------------
| | | | | |
| | | | | |
---------- ---------- ----------
| D R | | D R | | D R |
| | | | | |
| VP230 | | VP230 | | VP230 |
| | | | | |
| H L | | H L | | H L |
---------- ---------- ----------
| | | | | |
| | | | | |
|--x------|-----x------|-----x------|--| H
| | |
|---------x------------x------------x--| L

就通讯没通,有人试过么?

daiyinger
Posts: 6
Joined: Tue Oct 31, 2017 2:02 pm

Re: 有人试过esp32 can总线么

Postby daiyinger » Sat Apr 04, 2020 11:27 am

我用TJA1050可用,不过遗憾的是CAN收发器是5V供电的

ESP_Dazz
Posts: 193
Joined: Fri Jun 02, 2017 6:50 am

Re: 有人试过esp32 can总线么

Postby ESP_Dazz » Wed Apr 08, 2020 7:50 am

VP230 PIN 8 是用来控制 VP230 的 Sleep Mode/Standby Mode 功能。请确认你用的 VP230 板是将 PIN 8 连到 GND 禁用所有 Sleep Mode / Standby Mode 功能。

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