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Tool/software:
Hello,
for my application I want to use three MCAN modules.
The LaunchPad provides MCAN0 directly and MCAN1 by external pin mux on J7.63 and J7.64.
Furthermore the AM263x LaunchPad User Guide shows in table 4-25 "Pinmux Options for J7" that "MCAN3_RX" and "MCAN3_TX" can be made available on J7.69 and J7.70 in Mode0.
At the same time it claims that in Mode0 "ADC3_AIN2" and "DAC_OUT" (showing in green) are the Default signals J7.69 and J7.70. I assume something got twisted in this table because the pink Muxed alternative signals are shown in the Mode8 column and not as expected in the Mode0 column.
I refer to SPRUJ10D – MAY 2022 – REVISED SEPTEMBER 2023.
What ModeX and external pin mux do I have to chose to get access to MCAN1 and MCAN3 on J7 header or anywhere else on the LaunchPad?
Thanky you.
Antonius
Antonius,
MCAN1 can be accessed on J7-63 and J7-64. The MuxMode=0. In order to have MCAN1 on these BoosterPack pins, the SEL signal on the upstream MUX U52 needs to be configured HIGH in order for the path A<->C to be enabled.
MCAN3 can be accessed on J7-69 and J7-70. The MuxMode=0 for MCAN3_RX (AM2634 pin C14) and the MuxMode=0 for MCAN3_TX (AM2634 pin A15). The same MUX U52 needs to be configured with the SEL signal HIGH in order to enable the correct path.
Please refer to the LP-AM263 design files for the full on-board MUX routing, as well as the source pin for the MUX U52 SEL signal: https://www.ti.com/lit/zip/sprr452
Regards,
Brennan