LPC 2129 3.3 Vdda not connected

I have designed a pcb to run the LPC 2129 in the LQFP64(64 pin) package. As the system was too congested i decided to skip the 3.3 Vdda connection believing it to be required only for the ADC as a reference...
LPC 2129 3.3 Vdda not connected

I have designed a pcb to run the LPC 2129 in the LQFP64(64 pin) package. As the system was too congested i decided to skip the 3.3 Vdda connection believing it to be required only for the ADC as a reference...
MCB2300 3.3 and 5 volts on board

Dear All, I see in bottom to the MCB2300 (LPCR2378) and between INT0 button and buzzer the exits for 3.3V, 5V and GND. I have measured these exits (3.3 + GND and 5 + GND) with test multimeter but...
MCB2300 3.3 and 5 volts on board

Dear All, I see in bottom to the MCB2300 (LPCR2378) and between INT0 button and buzzer the exits for 3.3V, 5V and GND. I have measured these exits (3.3 + GND and 5 + GND) with test multimeter but...
wrting to BKPSRAM with 3.3 volts applied to v-bat

using the stm32f2xx_hal library I seem to be able to enable access to the BKPSRAM with __HAL_RCC_PWR_CLK_ENABLE(); HAL_PWR_EnableBkUpAccess(); __BKPSRAM_CLK_ENABLE(); Once this is done I can...