 Rydw i'r gweithio gyd yn ôl eu cyfnoddau, oedd y cyfnoddau, cyfnoddau o'r ddau cyfnoddau. Rydw i'n gofio'r cyfnoddau i'r cyfnoddau deilig o'r ddechrau Sdm32 L4. Rhywb i'r clywed o'r cyfnoddau. Rhywb i'r cyfnoddau Sdm32 L4, cyfnoddau, oedd swyddwch cyfnoddau, ddim byddai cyfnoddau ar y cyfnoddau. Llywodraeth yma yma yn 6 U R yma yn y pwysig o'r gweithio ar y Ffamolau. Felly mae'r ddod yn 10 MB i ddechrau o ddysgu. Mae'r ddysgu o'r ffordd, oherwydd mae'n bwysig. Oes yw'r mod cynnarol. Mae'r lliwau yn ymdod i'n gweithio. a dwi'n cael ei wneud autobodraethau. Mae U-Arts wedi'i gweithio multifunctiwn, ond rwy'n cael ei wneud Erdor, Smart Card, Linn, RS232, 485, i'w fwyf yn fwyfawr. Felly, rwy'n cael ei wneud yr U-Arts wedi'i gweithio fflexibol yn yr SEM32-L4. Mae Cwyrd Cwyrd, rwy'n rwy'n rwy'n cael ei wneud. Felly, rwy'n cael ei wneud yr U-Arts wedi'i gweithio fflexibol yn yr SEM32-L4. Mae Cwyrd Cwyrd Cwyrd Cwyrd, rwy'n cael ei wneud yr U-Arts wedi'i gweithio fflexibol yn yr SEM32-L4. Mae'r wazfa amser, a gennym o mod i'n mynd i gweithio unrhyw o Verti-L4, i gael eich chef o'r unrhyw gweithio, ac rwy'n cael ei gwneud yr Edydd y S&BUS 2.0 i'r Edydd PMBUS 1.1, o'r Edydd Yn Chwyrd Cwyrd. Felly, rwy'n rwy'n rwy'n cael ei gweithio i'ch gweithio o hyd yn nhw. Felly wrth i'r srpan i'r lapr ymddiad ydy'r walleg ydy. Byddwch i gyddon yn 40 MHz, ac yn yr rhan o'r rhaniam, rwy'n flynyddoch yn fwy modi, Cindy, Gwecton gyflawniaeth, mae'r Llywf Nifon, ydych chi'n gwybodaeth, a gael'r y gwael sydd wedi'i sgwrs a bach o'r Rydyma'l. Ond rwy'n parech i'r rwrs adeg yr RX and TX5 i gomod hwn o'r srpan. The USB is available as a USB 2.0 full-speed device and we all support OTG 2.0 spec on the device as well. So the USB can be host or slave. We've got the new features of link power management integrated into the USB cell now and battery charger detection built in there. This particular USB on the STM32L4 is classed as a Crystallus USB. So you can run the device without the crystal and it resyncs at every start of frame. So the 48 MHz MSI is capable of generating an exact frequency so that we can do each individual frame and then it resyncs at the new start of frame of every USB. So if you need to use USB but don't want an external crystal then we can manage it with the hardware we have in the STM32L4. We have one cancel inside the STM32L4 up to one megabits per second and again just like all the other communication peripherals it's flexible. It's got the FIFOs, three stages, it's got all the filter banks that you'd expect to have in there and again like the USB it can work without the external crystal thanks to the 1% HSI that we have inside the STM32L4. And finally we have the SD card, MMC card interface. So this will support three different card protocols there, secure digital, multimedia card and SD cards and any of these other modules that use that type of interface like Wi-Fi, Bluetooth, some of the cameras and memory modules can also be mapped onto this particular peripheral of the STM32L4. So some of the newer features that have been added to the STM32L4 we have SW PMI, so this is Serial Wire Protocol Master Interface primarily used for smart card. So we have that feature available inside the device now. We have Audio, so we have two SAIs, so Serial Audio Interfaces that can manage up to CD quality data rates and we've got protocol support for AC97, SPDIF, things like that inside the peripheral as well. We have a dedicated infrared timer, so this uses two of the timers there timer 16 and 17 and supports all the infrared protocols so RC5, RC6, RC8 and can deliver the correct current output to drive the infrared LEDs if you need them in the system. And we have one new peripheral, the DFS-DM, which we'll cover later on when we get to the new peripherals section just after lunch. So that was the connectivity. So now if we look at the analogue functionality that we have inside the STM32 I'll start in the top right-hand corner. So we have a temperature sensor, so this is same as we had in all the other STM32s. It's wired into one of the channels of ADC number one and provides you with the temperature sensing of the silicon itself. So remember it's embedded inside the chip. It's not got any external connections, so it's inside the plastic packaging so it will give you the temperature of the silicon itself. We have up to three ADCs inside the device. These can go up to five mega samples per second. They're 12-bit SARs and we've got the ability to do oversampling. So with the oversampling unit, we can get up to a 16-bit resolution out of the 12-bit ADC. These ADCs can also be run in low power mode. So as we keep saying, it's a high performance device but it is still an STM32L, which is a low power device. So we can get them down to one mega sample per second. We can get down to 200 microamps approximately. Also built into the ADCs are the analog watchdogs. So you've got the ability to have an analog watchdog per ADC channel. So you can just set a minimum threshold for an ADC signal that you're monitoring. Don't care about the reading as long as it's not outside of your watchdog window for the ADC. We've got two op-amps on board this device. So these are rail-to-rail op-amps. And again, they can work in normal mode, which is when you need the performance and the speed, or you can configure them to work in low power mode where they're down at about 45 microamps. So they're very flexible op-amps. All the pins can be bonded to external GPIO pins so that you can connect the inputs and the outputs to whatever you need in your application. We have two DACs on board the device. Up to 12-bit resolution. They've got buffered outputs. And again, the pins can be bonded to the outside world. So you can connect them to what you need to plug into with noise and triangular wave generation integrated inside the cell. We have the V-bat pin on the device. This can be used to supply the device when mains power disappears. It's an automatic switch over to V-bat so that you don't have to drain the battery when there's main power available to the system so the battery gets isolated at that point. And we now have a battery management pin which is wired into ADC number three so that you can actually monitor using the ADC of the device the current voltage level on your battery. So there's a way of managing the system to say we need to signal that the battery is running flat. We need to be serviced. We have the VREF input pin. So this is, on the larger pin counts, an external pin so that you can actually set a dedicated VREF value for all the analog components inside the device. And we also have the internal VREF which is again like all STM32s connected to one of the channels of the ADC so that you have a permanent internal reference inside the device. And finally we have two comparators. Comparator number one, comparator number two. Both of these comparators have all their pins bonded to external GPIO pins so again you can use them within your application as you need to. They can work in two modes, standard mode where you're using the performance of the device you want faster comparators to work, to do various things or you can run them in low power mode where you can get down to about 400 nanoamps on the comparators. Next section is the control logic. This covers all the various components that you would need for running the system. So we have up to 14 timers available inside the STM32L4. 1116 bit, 232 bit, two low power timers. So these low power timers are dedicated to work in all the low power modes of the STM32L4. And they can also be clocked from external sources as well so you can put the device into full stop mode before the clocks have switched off and this timer is receiving its pulse from an encoder for instance. We've also got enough catch compares with complementary outputs so we can drive motors. So there's a full motor control timer on board this device as well. The RTC on board this device is 300 nanoamps. It's full calendar. It supports multiple alarms, periodic wake up timers. There's three tamper pins now available on this device and there's ways of doing the calibration to make sure that you're very accurate in your timing of this device. Then we have the LCD segment display. So we can generate up to 176 segments at 44x4 or 320 segments at 40x8 and we've got all the flexibility to control the various duty cycles and biasing depending on what type of segment display we have connected on the outside world. There is an internal step up available inside the device. Again, you can use it. You don't have to use it so it is configurable and this can help with some of the power consumption of the device if you use the internal and not use the internal. Finally, we have the capacitive touch sensing so we can do up to 24 channels split across eight groups. These use one capacitor for three channels and can generate quite a lot of dedicated touch, capacitive touch pads that you can need for various types of applications. Depending on what you're doing within the application we have the ability to do it. The charge transfer extra analog components are built into the GPIO pins of these particular pads that can be set up for touch. The power supply network for the STM3204 is 1.7 volts to 3.6 volts for the main VDD lines. USB needs at least 3.0 volts to run. We have a dedicated VDD USB power supply pin so you might want to run the device down at 1.8 volts but still have USB available so you can have a dedicated VDD for USB connected to the device. Most of the GPIO pins are 5 volt tolerant so they can receive the 5 volts inbound to the device without causing any damage. If you want to drive 5 volts then you will need external transistors to do that. We have a dedicated VLCD pin so that we can drive the internal external elements of the seven-segment display. The VBAT pin we've already mentioned earlier on and we've got dedicated analog pins. We have a VSS-A VDD-A. Normally these will be connected via our seasoned inductors to the VDD line to provide, remove noise from the analog components. If you want to connect them to very precise external analog signals you can do in this environment. We now have the ability, as you can see there flashing, we have the ability to charge the battery now through the system. That's a new feature that we've added in the STM32L4 that's different to all of our STM32s. There is now a charging feature for the battery pin.