MCP2515 & STM32L053: SPI issue - c

Question

I'm trying to make a MPC2515 CAN controller works with an STML053R8 µC.
I'm using this driver/example https://github.com/eziya/STM32_SPI_MCP2515 with just the #include "stm32f1xx_hal.h" changed to #include "stm32l0xx_hal.h".
Here is my condensed code:
#define CAN_CS_Pin GPIO_PIN_5
#define CAN_CS_GPIO_Port GPIOA
extern SPI_HandleTypeDef hspi1;
#define SPI_CAN &hspi1
int CANSPI_Initialize(void)
{
// Some registers def
[...]
// This pass
if(MCP2515_Initialize() != 0)
return 1;
// This fails
if(MCP2515_SetConfigMode() != 0)
return 2;
[...]
}
int MCP2515_Initialize(void)
{
MCP2515_CS_HIGH();
uint8_t loop = 10;
do {
/* SPI Ready ? */
if(HAL_SPI_GetState(SPI_CAN) == HAL_SPI_STATE_READY)
return 0;
loop--;
} while(loop > 0);
return 1;
}
int MCP2515_SetConfigMode(void)
{
/* CANCTRL Register Configuration ?? ?? */
MCP2515_WriteByte(MCP2515_CANCTRL, 0x80);
uint8_t loop = 10;
do {
if((MCP2515_ReadByte(MCP2515_CANSTAT) & 0xE0) == 0x80)
return 0;
loop--;
} while(loop > 0);
return 1;
}
uint8_t MCP2515_ReadByte (uint8_t address)
{
uint8_t retVal;
MCP2515_CS_LOW();
SPI_Tx(MCP2515_READ);
SPI_Tx(address);
retVal = SPI_Rx();
MCP2515_CS_HIGH();
return retVal;
}
void MCP2515_WriteByte(uint8_t address, uint8_t data)
{
MCP2515_CS_LOW();
SPI_Tx(MCP2515_WRITE);
SPI_Tx(address);
SPI_Tx(data);
MCP2515_CS_HIGH();
}
My SPI configuration (generated by STM32 CubeMX):
/* SPI1 init function */
static void MX_SPI1_Init(void)
{
/* SPI1 parameter configuration*/
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 7;
if (HAL_SPI_Init(&hspi1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
and a link to the MPC2515 datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/20001801H.pdf
My problem here is in MCP2515_SetConfigMode(), as I set the CANCTRL register, I should read back
this value ('current mode is config mode') in CANSTAT register.
Also I tried to do the same thing for a LSM6DS3 IMU module yesterday and I got the same issue, unable
to read/write registers => unable to communicate with the device. I plugged it in I2C (this IMU got
2 interfaces) and I make it works like a charm.
The driver/example code I use seems very valid to me, I checked ALL the data & registers value from
the datasheet and everything looks OK to me. I suspect I might messed up something in my SPI configuration.
Any help will be gladly appreciated!
EDIT: I don't have a logical analyzer but I downloaded ones for Arduino and got this weird output. Not sure if this is the Arduino fault or my actual output: