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[imxrt1170]Fix flexcan driver (#6378) 

fix flexcan driver for imxrt1170
This commit is contained in:
xiao xie 2022-09-07 09:20:04 +08:00 committed by GitHub
parent 5967ce44ff
commit 05afaa9fc5
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 26 additions and 4 deletions
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5
bsp/imxrt/libraries/MIMXRT1170/MIMXRT1176/drivers/fsl_flexcan.c
View File

@ -3475,12 +3475,11 @@ void FLEXCAN_TransferCreateHandle(CAN_Type *base,
/* Get instance from peripheral base address. */
instance = (uint8_t)FLEXCAN_GetInstance(base);
/* Save the context in global variables to support the double weak mechanism. */
s_flexcanHandle[instance] = handle;
/* Register Callback function. */
handle->callback = callback;
handle->userData = userData;
/* Save the context in global variables to support the double weak mechanism. */
s_flexcanHandle[instance] = handle;
s_flexcanIsr = FLEXCAN_TransferHandleIRQ;

25
bsp/imxrt/libraries/drivers/drv_can.c
View File

@ -29,6 +29,10 @@
static flexcan_frame_t frame[RX_MB_COUNT]; /* one frame buffer per RX MB */
static rt_uint32_t filter_mask = 0;
#ifdef SOC_IMXRT1170_SERIES
#define USE_IMPROVED_TIMING_CONFIG (1U)
#endif
enum
{
#ifdef BSP_USING_CAN1
@ -102,13 +106,16 @@ uint32_t GetCanSrcFreq(CAN_Type *can_base)
return freq;
}
#ifdef SOC_IMXRT1170_SERIES
static void flexcan_callback(CAN_Type *base, flexcan_handle_t *handle, status_t status, uint64_t result, void *userData)
#else
static void flexcan_callback(CAN_Type *base, flexcan_handle_t *handle, status_t status, uint32_t result, void *userData)
#endif
{
struct imxrt_can *can;
flexcan_mb_transfer_t rxXfer;
can = (struct imxrt_can *)userData;
switch (status)
{
case kStatus_FLEXCAN_RxIdle:
@ -171,6 +178,22 @@ static rt_err_t can_cfg(struct rt_can_device *can_dev, struct can_configure *cfg
case RT_CAN_MODE_LOOPBACKANLISTEN:
break;
}
#ifdef SOC_IMXRT1170_SERIES
flexcan_timing_config_t timing_config;
memset(&timing_config, 0, sizeof(flexcan_timing_config_t));
if(FLEXCAN_CalculateImprovedTimingValues(can->base, config.baudRate, GetCanSrcFreq(can->base), &timing_config))
{
/* Update the improved timing configuration*/
memcpy(&(config.timingConfig), &timing_config, sizeof(flexcan_timing_config_t));
}
else
{
LOG_E("No found Improved Timing Configuration. Just used default configuration\n");
}
#endif
FLEXCAN_Init(can->base, &config, GetCanSrcFreq(can->base));
FLEXCAN_TransferCreateHandle(can->base, &can->handle, flexcan_callback, can);
/* init RX_MB_COUNT RX MB to default status */