About GMart.6

GMart.6 · 2021-12-27

GMart.6 · 2021-12-27

GMart.6 · 2021-12-14

uint8_t slv_add[] = {0xF1, 0x0A, 0x00, 0x57, 0x53}; if(HAL_UART_Transmit_DMA(&huart1, &slv_add, (sizeof(slv_add)/sizeof((slv_add)))) != HAL_OK)Error_Handler();uint8_t cell_sel[] = {0x91, 0x00, 0x0D, 0x06, 0xA8, 0x6E}; ...

GMart.6 · 2021-11-30

GMart.6 · 2021-12-16

I used the HAL_DELAY after each transmit command and now it works. But I should find a better solution.Using the HAL_UART_Transmit with HAL_MAX_DELAY timeout do not solve the problem.

GMart.6 · 2021-11-30

thank you

GMart.6 · 2021-11-30

I wrote 0x. I used this expression: uint16_t array [ ] = {0x81} and the stored value is 129

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I'm working with a nucleo board f401re and I want to use the usart 6 through PC6 (tx) and PC7 (rx). I'm connected to the D15 and D9 board pin respectively. I correctly initializate the peripheral but it doesn't work. Any advise?

I'm trying to communicate with my stm32 through an rs232 using the usart. The value I read from the pc, through a terminal are different form what I sent. I matched the baud (9600), the data bit (8), the parity (NO) and the stop bit (1). Any advise?

I need to transmit two buffer trought HAL_UART_Transimit_DMA. I wrote in the code two consecutive command to do it but when I run the code, HAL_UART_Transimit_DMA do not return HAL_OK. It return HAL_OK only in debug mode stepping with F6. Why?

I defined an array and I assigned some hex elements but, if I watch at the array, these value appear in dec not in hex. Why? I need to store hex, how can I do?

Re: I need to transmit two buffer trought HAL_UART_Transimit_DMA. I wrote in the code two consecutive command to do it but when I run the code, HAL_UART_Transimit_DMA do not return HAL_OK. It return HAL_OK only in debug mode stepping with F6. Why?

Re: I defined an array and I assigned some hex elements but, if I watch at the array, these value appear in dec not in hex. Why? I need to store hex, how can I do?

Re: I defined an array and I assigned some hex elements but, if I watch at the array, these value appear in dec not in hex. Why? I need to store hex, how can I do?