Tool/software:
I have a question about a different part from MSP430FR series, the MSP430FR2355. Although, probably all FR series MCUs share the same silicone in regards to internal peripherals, like the Timers.
The question is about the Timer peripheral, as you might guess. Particularly about timing characteristics, and the jitter. We have a design, where the jitter and precise timing is essential.
In current design we use a FPGA to take the 32KHz square wave, divide it by a 2N number and generate four square waves, that are shifted by a fixed delay and flipped in phase. The same function is very easily achieved by Timer_B_CCR7 in MSP430FR2355 (or any similar MSP that has 7 CCR outputs). In that configuration the core us used only to setup the Timer registers and it can be shut off, leaving only the Timer Peripheral running, with its own clock input and CCR outputs, all configured on corresponding GPIOs.
The question I was asked, how good is the Timer hardware, how precise are the characteristics and how much is the jitter. Unfortunately I could not find that information in the datasheet, so I was hoping you can get that information for us.
Practically, we already have designed in a MSP430FR2355 in our new design for UART, I2C, SPI communications, a few ADC measurements, a set of GPIO lines, etc. The FPGA is a costly IC, so eliminating it will save us $6-$8 per device.
If you have data on non-FRAM parts for MSP430Fxx series, I will take that too.
