Initialize some pins to VDDIOH on MAX78002EVKIT, MSDK-927 #406
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Jake-Carter
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sihyung-maxim
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Feb 20, 2023
| @@ -292,6 +300,12 @@ int Board_Init(void) | |||
| MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_GPIO1); | |||
| MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_GPIO2); | |||
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| // Set VSSEL to VDDIOH to for any pins that are pulled | |||
Jacob-Scheiffler
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Feb 24, 2023
Jake-Carter
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* Initialize some pins to VDDIOH on MAX78002EVKIT, MSDK-927 * clang-format * Fix comment typo
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This PR initializes some pins that are pulled up to 3v3 on the MAX780002EVKIT. The board startup file has been modified to set VSSEL of these pins to VDDIOH.
From MSDK-927
8 GPIOs are configured to use VDDIO (1.8V), but are pulled up to 3V3 via 10kohm resistors on the AI87 external EVKit. This injects current into the VDDIO/VDDA node and causes it to rise to about 2.4V in Standby, Backup and PowerDown modes.
Pin Resistor
P0.0 R110
P1.10 R98
P1.11 R95
P1.12 R94
P1.13 R93
P1.14 R93
P1.16 R96
P2.2 R104