lmoskala/ESP32_Arduino_CAN
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fix speed halved in ESP32-WROOM-32E

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ESP32 ECO3 added a configurable bit that will cause CAN bus speeds to be halved in new V3 core 32E module.
This bit is in `TWAI_INT_ENA_REG`, bit4 which was previously reserved.
Change respects reserved bit and should not cause issues for previous versions since this bit should not have been written to.
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Sam Perry 2022-02-20 16:57:10 -05:00 committed by GitHub
parent f95cadabb2
commit c2d6b13103
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
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src/CAN.c
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@ -226,7 +226,7 @@ int CAN_init() {
MODULE_CAN->BTR1.B.SAM = 0x1; MODULE_CAN->BTR1.B.SAM = 0x1;
// enable all interrupts // enable all interrupts
MODULE_CAN->IER.U = 0xff; MODULE_CAN->IER.U = 0xef;
// Set acceptance filter // Set acceptance filter
MODULE_CAN->MOD.B.AFM = __filter.FM; MODULE_CAN->MOD.B.AFM = __filter.FM;
@ -296,4 +296,4 @@ int CAN_config_filter(const CAN_filter_t* p_filter) {
__filter.AMR3 = p_filter->AMR3; __filter.AMR3 = p_filter->AMR3;
return 0; return 0;
} }