alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-08 20:21:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

dport: Bigfix dport_read code move to IRAM

Browse Source 
A new method of workaround an error with DPORT is to ensure that the APB is read and followed by the DPORT register without interruptions and pauses. This fix places this implementation in the IRAM to exclude errors associated with the cache miss.
This commit is contained in:
Konstantin Kondrashov
2018-05-21 15:10:03 +05:00
parent 0c64ef9600
commit e5b280f173
3 changed files with 85 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
components/esp32/include/esp_dport_access.h
View File

@@ -27,6 +27,8 @@ void esp_dport_access_int_init(void);
void esp_dport_access_int_pause(void);
void esp_dport_access_int_resume(void);
void esp_dport_access_read_buffer(uint32_t *buff_out, uint32_t address, uint32_t num_words);
uint32_t esp_dport_access_reg_read(uint32_t reg);
uint32_t esp_dport_access_sequence_reg_read(uint32_t reg);
//This routine does not stop the dport routines in any way that is recoverable. Please
//only call in case of panic().
void esp_dport_access_int_abort(void);
@@ -34,7 +36,6 @@ void esp_dport_access_int_abort(void);
#if defined(BOOTLOADER_BUILD) || defined(CONFIG_FREERTOS_UNICORE) || !defined(ESP_PLATFORM)
#define DPORT_STALL_OTHER_CPU_START()
#define DPORT_STALL_OTHER_CPU_END()
#define DPORT_STALL_OTHER_CPU_START()
#define DPORT_INTERRUPT_DISABLE()
#define DPORT_INTERRUPT_RESTORE()
#else