pierremolinaro
commented
3 years ago Hello,
The 0x10000 error code mans that the MCP2518FD cannot reach the requested mode within 2 ms.
The problem is the MCP2518FD has no RESET pin, RESET is done by software. On Power ON, MCP2517_CS may float, providing erratic selection. I have found that erratic selection can prevent software reset to success.
ESP32 is very tricky at start up, it requires some level on some pins, ans outputs some signal on some pins.
See https://randomnerdtutorials.com/esp32-pinout-reference-gpios/ https://randomnerdtutorials.com/esp32-pinout-reference-gpios/, it indicates that IO5 outputs PWM signal at boot. So there are erratic selections at startup, that can prevent MCP2518FD reset to success.
So I suggest to change MCP2517_CS to an other pin, as IO4. And adding a 10kΩ resistor between MCP2517_CS and 3.3V maintain CS high (no selection) after power-up, until MCP2517_CS is configured as output.
Best regards,
Pierre Molinaro
Le 17 oct. 2020 à 01:32, turbotom93 notifications@github.com a écrit :
I'm trying to add CAN FD to my ESP32 project with a Mikroe MCP2518FD CLICK. I am running the LoopBackDemoESP32 example. My only changes were the pin numbers and the oscillator frequency.
define LED_BUILTIN 17
static const byte MCP2517_SCK = 18 ; // SCK input of MCP2517FD static const byte MCP2517_MOSI = 19 ; // SDI input of MCP2517FD static const byte MCP2517_MISO = 23 ; // SDO output of MCP2517FD
static const byte MCP2517_CS = 5 ; // CS input of MCP2517FD static const byte MCP2517_INT = 14 ; // INT output of MCP2517FD
and
ACAN2517FDSettings settings (ACAN2517FDSettings::OSC_40MHz, 125 * 1000, DataBitRateFactor::x1) ;
The MCP2518FD is connected like this: https://user-images.githubusercontent.com/15605124/96322182-138f8680-0fe6-11eb-9f1e-5b53959791d8.png When I go the terminal I get a config error 0x10000 followed by a bunch of Sent packets, but none Received: 18:16:55.690 -> rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) 18:16:55.690 -> configsip: 0, SPIWP:0xee 18:16:55.690 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 18:16:55.690 -> mode:DIO, clock div:1 18:16:55.690 -> load:0x3fff0018,len:4 18:16:55.690 -> load:0x3fff001c,len:1216 18:16:55.690 -> ho 0 tail 12 room 4 18:16:55.690 -> load:0x40078000,len:9720 18:16:55.690 -> ho 0 tail 12 room 4 18:16:55.690 -> load:0x40080400,len:6352 18:16:55.690 -> entry 0x400806b8 18:16:55.861 -> sizeof (ACAN2517FDSettings): 44 bytes 18:16:55.861 -> Configure ACAN2517FD 18:16:55.861 -> MCP2517FD RAM Usage: 2016 bytes 18:16:55.861 -> Configuration error 0x10000 18:16:55.861 -> Sent: 1 18:16:57.794 -> Sent: 2 18:16:59.797 -> Sent: 3 18:17:01.807 -> Sent: 4 18:17:03.779 -> Sent: 5 18:17:05.837 -> Sent: 6
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turbotom93
I'm trying to add CAN FD to my ESP32 project with a Mikroe MCP2518FD CLICK. I am running the LoopBackDemoESP32 example. My only changes were the pin numbers and the oscillator frequency.
#define LED_BUILTIN 17
static const byte MCP2517_SCK = 18 ; // SCK input of MCP2517FD static const byte MCP2517_MOSI = 19 ; // SDI input of MCP2517FD static const byte MCP2517_MISO = 23 ; // SDO output of MCP2517FD
static const byte MCP2517_CS = 5 ; // CS input of MCP2517FD static const byte MCP2517_INT = 14 ; // INT output of MCP2517FD
and
*ACAN2517FDSettings settings (ACAN2517FDSettings::OSC_40MHz, 125 1000, DataBitRateFactor::x1) ;**
The MCP2518FD is connected like this:
When I go the terminal I get a config error 0x10000 followed by a bunch of Sent packets, but none Received: 18:16:55.690 -> rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) 18:16:55.690 -> configsip: 0, SPIWP:0xee 18:16:55.690 -> clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 18:16:55.690 -> mode:DIO, clock div:1 18:16:55.690 -> load:0x3fff0018,len:4 18:16:55.690 -> load:0x3fff001c,len:1216 18:16:55.690 -> ho 0 tail 12 room 4 18:16:55.690 -> load:0x40078000,len:9720 18:16:55.690 -> ho 0 tail 12 room 4 18:16:55.690 -> load:0x40080400,len:6352 18:16:55.690 -> entry 0x400806b8 18:16:55.861 -> sizeof (ACAN2517FDSettings): 44 bytes 18:16:55.861 -> Configure ACAN2517FD 18:16:55.861 -> MCP2517FD RAM Usage: 2016 bytes 18:16:55.861 -> Configuration error 0x10000 18:16:55.861 -> Sent: 1 18:16:57.794 -> Sent: 2 18:16:59.797 -> Sent: 3 18:17:01.807 -> Sent: 4 18:17:03.779 -> Sent: 5 18:17:05.837 -> Sent: 6