STM32H7B3I-DK "_C" Pins Not Working as GPIO
I am working on the STM32H7B3I-DK and needing to use PA0_C PC2_C and PC3_C as part a button scanner, as all other pins are being used. I have PA_0 configured as an output and PC2_C and PC3_C as Inputs with pull downs. The current full 3x3 configuration is PA4, PC4, PA0_C as outputs and PH10, PC2_C, and PC3_C as inputs (pull down resistors). I have configured PA_0, PC2_C, and PC3_C to be connect to PA0, PC2, and PC3, by closing the analog switch. However, PA0 and PC2 are not working as intended. Measured through an oscilloscope PA0 is not supplying and voltage when set high (Same results in a new project with only PA0_C connected and set high). PC2 is also not reading high when voltage is applied. The weird thing is that PC3 works fine and reads high when voltage is applied.
I am trying to figure out if the board somehow is damaged or if i am missing something. I have pasted my pin Initialization below. I have also assigned the pins in cubeMX to have the same values.
// Configure PA0_C (ROW2) as output
GPIO_InitTypeDef GPIO_InitStruct = {0};
// PA0_C (ROW2) as output
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
// PC2_C (COL1) as input
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
// PC3_C (COL2) as input
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
// Clear SYSCFG for these pins
__HAL_RCC_SYSCFG_CLK_ENABLE();
HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PA0,SYSCFG_SWITCH_PA0_CLOSE);
HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC2,SYSCFG_SWITCH_PC2_CLOSE);
HAL_SYSCFG_AnalogSwitchConfig(SYSCFG_SWITCH_PC3,SYSCFG_SWITCH_PC3_CLOSE);