About AA1

AA1 · 2024-04-26

1. According to datasheet, STM32U0 family have an IRTIM (Infrared interface). But this section is missing in RM0503. Also in SYSCFG_CFGR1 there is missing IR_MOD and IR_POL bits.2. In RTC section Figure 297 it is missing RTC_OUT2 and RTC_REFIN pins. ...

AA1 · 2022-07-04

Cortex-M0 programming manual have several instructions like this:You can use the LSR ...When the instruction is LSRS, the carry flag is updated ...But I believe that on Cortex-M0, there is no optional 'S' appended to instructions to update flags. Ins...

AA1 · 2022-02-14

Hi,I need clarification of errata, "Interrupt service routine (ISR) executed with priority of main process".I don't understand in which cases this limitation can occur.I don't understand why the workaround used for STM8S (put a SIM instruction at the...

AA1 · 2021-10-07

Hi,Reference: AN5179 - RS232 communications with a terminal using the STM8 Nucleo-64 boardshttps://www.st.com/resource/en/application_note/dm00513075-rs232-communications-with-a-terminal-using-the-stm8-nucleo64-boards-stmicroelectronics.pdfAN5179 pag...

AA1 · 2024-07-01

Don't insert code as if it was text. When you insert code, you should click in </> icon in the toolbar.SPI3_SCK and SPI3_MOSI output type should be push-pull. Where is GPIO configuration?

AA1 · 2024-06-06

If the problem is solved, you should mark this topic as answered.

AA1 · 2024-06-05

As I said before, .S19 file is not a binary file, and this is the problem. .S19 is an ASCII file. Code is in hexadecimal and each line begins with an 'S' and an address. You can't read the file as is and send it to MCU. Search in Internet for .s19 fi...

AA1 · 2024-06-05

If you don't' use watchdog, invalid opcode reset seems the only possibility. And this happens because code at address 0x0000A0 is invalid. Show me the first bytes at address 0x0000A0.

AA1 · 2024-06-04

.s19 file is not a binary file. How do you wrote RAM erase/write routines to RAM.If above step is ok, other possibility is watchdog as Tesla DeLorean already said. Do you have watchdog enable by hardware in options bytes?

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Missing section IRTIM in STM32U0 RM and more.

Possible error in Cortex-M0 programming manual.

Need clarification of errata, "Interrupt service routine (ISR) executed with priority of main process".

RS232 communication with a terminal using STM8L-DISCOVERY.

Re: Problem with SPI Communication - Nucleo U575ZI-Q/STEVAL-MKI168V1

Re: STM8 bootloader UART write memory

Re: STM8 bootloader UART write memory

Re: STM8 bootloader UART write memory

Re: STM8 bootloader UART write memory