Hello
I found one schematic at this address
https://www.robotshop.com/media/files/p ... t-1182.pdf
Best regards
Search found 13 matches
- Sat Sep 26, 2020 5:57 am
- Forum: General Discussion
- Topic: Issue with MCPWM Prescaler
- Replies: 5
- Views: 2346
- Mon Jul 06, 2020 2:44 pm
- Forum: ESP-IDF
- Topic: Issue with FreeRTOS, printf and vTaskSuspend
- Replies: 5
- Views: 1141
Re: Issue with FreeRTOS, printf and vTaskSuspend
Hello After printf, I have a similar problem with scanf ()or gets() : none of them waits and let me key in what I want, the program skip to the next instruction. I have read I should use the esp_vfs_dev_uart_use_driver() function but, if I do so, my ESP32 reboots when it reaches the scanf() or the g...
- Fri Jul 03, 2020 7:40 am
- Forum: ESP-IDF
- Topic: Issue with FreeRTOS, printf and vTaskSuspend
- Replies: 5
- Views: 1141
Re: Issue with FreeRTOS, printf and vTaskSuspend
Tank you very much ESP_ulipe ans ESP_Sprite for yours replies and specially for the image of the cannon/mosquito ! I realize now that the FreeRtos port on the ESP32 is quite different from what is explained in the "Mastering FreeRTOS" paper. Can one of them send me of reference where I can find info...
- Thu Jul 02, 2020 5:03 pm
- Forum: ESP-IDF
- Topic: Issue with FreeRTOS, printf and vTaskSuspend
- Replies: 5
- Views: 1141
Issue with FreeRTOS, printf and vTaskSuspend
Hello everybody I am getting started with FreeRTOS and for my firs try (following the pdf "Mastering FreeRTOS") I made a task which displays a string on the monitor. Since I did not found the vPrintString() int he ESP32 port, I wrote : void vPrintString( const char *pcString ){ vTaskSuspendAll(); //...
- Tue Feb 18, 2020 9:42 am
- Forum: General Discussion
- Topic: What is and when to use IRAM_ATTR ?
- Replies: 7
- Views: 18205
Re: What is and when to use IRAM_ATTR ?
Thank you very much for all your replies !
I see a little bit clear about this problem.
I see a little bit clear about this problem.
- Tue Feb 18, 2020 9:39 am
- Forum: General Discussion
- Topic: Question about uart_rx_one_char
- Replies: 4
- Views: 1324
Re: Question about uart_rx_one_char
Oh thank you very much !
It was the flow control material which was ON
I put it OFF and all is OK.
But do you know wher I ca find documentation on these ROM functions ?
Best regards
It was the flow control material which was ON
I put it OFF and all is OK.
But do you know wher I ca find documentation on these ROM functions ?
Best regards
- Mon Feb 17, 2020 11:22 am
- Forum: General Discussion
- Topic: Question about uart_rx_one_char
- Replies: 4
- Views: 1324
Re: Question about uart_rx_one_char
Hello and thank you for your quick answer You have swapped idy.py for minicom.exe. That's all. I don't understand what you are meaning by "swap". I type idf.py flash and then minicom without .exe for I work with linux Probably your minicom serial port settings are wrong, baud rate, parity etc? If yo...
- Mon Feb 17, 2020 9:47 am
- Forum: General Discussion
- Topic: Question about uart_rx_one_char
- Replies: 4
- Views: 1324
Question about uart_rx_one_char
Hello everybody As I wanted a mean to drive a program with a simple char key pressed, and after searching the web, I found the uart_rx_one_char and uart_rx_one_char_block functions. In order to wait a char, I can use each of these functions in a task and they work like a charm when I use idf.py flas...
- Sat Feb 15, 2020 4:57 pm
- Forum: General Discussion
- Topic: What is and when to use IRAM_ATTR ?
- Replies: 7
- Views: 18205
Re: What is and when to use IRAM_ATTR ?
Hello and Thank you for these great explanations ! But I have a question about the variables used in a such ISR tagged as IRAM_ATTR. I have read in the doc that they must be tagged as DRAM_ATTR. Can someone explain why, and the risk if we do not so ? I tried with a counter increment by an ISR, with ...
- Thu Feb 13, 2020 9:18 am
- Forum: General Discussion
- Topic: Using MCPWM periferal to generate desired pattern
- Replies: 5
- Views: 2234
Re: Using MCPWM periferal to generate desired pattern
Hello I think than it is OK with the following init. I use MCPWM but with only one timer : TIMER_0 The three Operator are linked to TIMER_0 On GPIO_PWM0A_OUT, I get your pin1 signal On GPIO_PWM1A_OUT, I get your pin2 signal The third pin is just for me to control I used huge prescaler for i have no ...