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SAMD20 prints die revision

This commit is contained in:
Richard Eoin Meadows 2014-08-24 15:25:59 +01:00 committed by Gareth McMullin
parent f4e20d0d04
commit 091389b982
1 changed files with 12 additions and 3 deletions
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15
src/samd20.c
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@ -134,6 +134,9 @@ static const char samd20_xml_memory_map[] = "<?xml version=\"1.0\"?>"
#define SAMD20_DID_MASK 0xFFBF0000
#define SAMD20_DID_CONST_VALUE 0x10000000
#define SAMD20_DID_DEVSEL_MASK 0x0F
#define SAMD20_DID_DEVSEL_POS 0
#define SAMD20_DID_REVISION_MASK 0x0F
#define SAMD20_DID_REVISION_POS 8
/* Peripheral ID */
#define SAMD20_PID_MASK 0x00F7FFFF
@ -299,7 +302,10 @@ bool samd20_probe(struct target_s *target)
/* If the Device ID matches */
if ((did & SAMD20_DID_MASK) == SAMD20_DID_CONST_VALUE) {
uint8_t devsel = did & SAMD20_DID_DEVSEL_MASK;
uint8_t devsel = (did >> SAMD20_DID_DEVSEL_POS)
& SAMD20_DID_DEVSEL_MASK;
uint8_t revision = (did >> SAMD20_DID_REVISION_POS)
& SAMD20_DID_REVISION_MASK;
/* Pin Variant */
char pin_variant;
@ -313,9 +319,12 @@ bool samd20_probe(struct target_s *target)
/* Mem Variant */
uint8_t mem_variant = 18 - (devsel % 5);
/* Revision */
char revision_variant = 'A' + revision;
/* Part String */
sprintf(variant_string, "Atmel SAMD20%c%dA",
pin_variant, mem_variant);
sprintf(variant_string, "Atmel SAMD20%c%dA (rev %c)",
pin_variant, mem_variant, revision_variant);
/* Setup Target */
target->driver = variant_string;